3562 lines
128 KiB
Rust
3562 lines
128 KiB
Rust
#![allow(clippy::integer_arithmetic)]
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use {
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assert_matches::assert_matches,
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crossbeam_channel::{unbounded, Receiver},
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gag::BufferRedirect,
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log::*,
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serial_test::serial,
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solana_client::{
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pubsub_client::PubsubClient,
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rpc_client::RpcClient,
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rpc_config::{RpcProgramAccountsConfig, RpcSignatureSubscribeConfig},
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rpc_response::RpcSignatureResult,
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thin_client::{create_client, ThinClient},
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},
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solana_core::{
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broadcast_stage::{
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broadcast_duplicates_run::BroadcastDuplicatesConfig, BroadcastStageType,
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},
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consensus::{Tower, SWITCH_FORK_THRESHOLD, VOTE_THRESHOLD_DEPTH},
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optimistic_confirmation_verifier::OptimisticConfirmationVerifier,
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replay_stage::DUPLICATE_THRESHOLD,
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tower_storage::FileTowerStorage,
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validator::ValidatorConfig,
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},
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solana_download_utils::download_snapshot,
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solana_gossip::{
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cluster_info::VALIDATOR_PORT_RANGE,
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crds::Cursor,
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gossip_service::{self, discover_cluster},
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},
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solana_ledger::{
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ancestor_iterator::AncestorIterator,
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blockstore::{Blockstore, PurgeType},
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blockstore_db::AccessType,
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leader_schedule::FixedSchedule,
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leader_schedule::LeaderSchedule,
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},
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solana_local_cluster::{
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cluster::{Cluster, ClusterValidatorInfo},
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cluster_tests,
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local_cluster::{ClusterConfig, LocalCluster},
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validator_configs::*,
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},
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solana_runtime::{
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snapshot_archive_info::SnapshotArchiveInfoGetter,
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snapshot_config::SnapshotConfig,
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snapshot_utils::{self, ArchiveFormat},
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},
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solana_sdk::{
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account::AccountSharedData,
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client::{AsyncClient, SyncClient},
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clock::{self, Slot, DEFAULT_MS_PER_SLOT, DEFAULT_TICKS_PER_SLOT, MAX_RECENT_BLOCKHASHES},
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commitment_config::CommitmentConfig,
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epoch_schedule::MINIMUM_SLOTS_PER_EPOCH,
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genesis_config::ClusterType,
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hash::Hash,
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poh_config::PohConfig,
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pubkey::Pubkey,
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signature::{Keypair, Signer},
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system_program, system_transaction,
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},
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solana_streamer::socket::SocketAddrSpace,
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solana_vote_program::{vote_state::MAX_LOCKOUT_HISTORY, vote_transaction},
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std::{
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collections::{BTreeSet, HashMap, HashSet},
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fs,
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io::Read,
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iter,
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path::{Path, PathBuf},
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sync::atomic::{AtomicBool, Ordering},
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sync::Arc,
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thread::{sleep, Builder, JoinHandle},
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time::{Duration, Instant},
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},
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tempfile::TempDir,
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};
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const RUST_LOG_FILTER: &str =
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"error,solana_core::replay_stage=warn,solana_local_cluster=info,local_cluster=info";
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#[test]
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#[serial]
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fn test_ledger_cleanup_service() {
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solana_logger::setup_with_default(RUST_LOG_FILTER);
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error!("test_ledger_cleanup_service");
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let num_nodes = 3;
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let validator_config = ValidatorConfig {
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max_ledger_shreds: Some(100),
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..ValidatorConfig::default()
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};
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let mut config = ClusterConfig {
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cluster_lamports: 10_000,
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poh_config: PohConfig::new_sleep(Duration::from_millis(50)),
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node_stakes: vec![100; num_nodes],
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validator_configs: make_identical_validator_configs(&validator_config, num_nodes),
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..ClusterConfig::default()
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};
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let mut cluster = LocalCluster::new(&mut config, SocketAddrSpace::Unspecified);
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// 200ms/per * 100 = 20 seconds, so sleep a little longer than that.
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sleep(Duration::from_secs(60));
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cluster_tests::spend_and_verify_all_nodes(
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&cluster.entry_point_info,
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&cluster.funding_keypair,
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num_nodes,
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HashSet::new(),
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SocketAddrSpace::Unspecified,
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);
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cluster.close_preserve_ledgers();
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//check everyone's ledgers and make sure only ~100 slots are stored
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for info in cluster.validators.values() {
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let mut slots = 0;
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let blockstore = Blockstore::open(&info.info.ledger_path).unwrap();
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blockstore
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.slot_meta_iterator(0)
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.unwrap()
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.for_each(|_| slots += 1);
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// with 3 nodes up to 3 slots can be in progress and not complete so max slots in blockstore should be up to 103
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assert!(slots <= 103, "got {}", slots);
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}
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}
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#[test]
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#[serial]
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fn test_spend_and_verify_all_nodes_1() {
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solana_logger::setup_with_default(RUST_LOG_FILTER);
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error!("test_spend_and_verify_all_nodes_1");
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let num_nodes = 1;
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let local =
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LocalCluster::new_with_equal_stakes(num_nodes, 10_000, 100, SocketAddrSpace::Unspecified);
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cluster_tests::spend_and_verify_all_nodes(
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&local.entry_point_info,
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&local.funding_keypair,
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num_nodes,
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HashSet::new(),
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SocketAddrSpace::Unspecified,
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);
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}
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#[test]
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#[serial]
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fn test_spend_and_verify_all_nodes_2() {
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solana_logger::setup_with_default(RUST_LOG_FILTER);
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error!("test_spend_and_verify_all_nodes_2");
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let num_nodes = 2;
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let local =
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LocalCluster::new_with_equal_stakes(num_nodes, 10_000, 100, SocketAddrSpace::Unspecified);
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cluster_tests::spend_and_verify_all_nodes(
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&local.entry_point_info,
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&local.funding_keypair,
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num_nodes,
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HashSet::new(),
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SocketAddrSpace::Unspecified,
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);
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}
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#[test]
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#[serial]
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fn test_spend_and_verify_all_nodes_3() {
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solana_logger::setup_with_default(RUST_LOG_FILTER);
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error!("test_spend_and_verify_all_nodes_3");
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let num_nodes = 3;
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let local =
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LocalCluster::new_with_equal_stakes(num_nodes, 10_000, 100, SocketAddrSpace::Unspecified);
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cluster_tests::spend_and_verify_all_nodes(
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&local.entry_point_info,
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&local.funding_keypair,
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num_nodes,
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HashSet::new(),
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SocketAddrSpace::Unspecified,
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);
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}
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#[test]
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#[serial]
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fn test_local_cluster_signature_subscribe() {
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solana_logger::setup_with_default(RUST_LOG_FILTER);
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let num_nodes = 2;
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let cluster =
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LocalCluster::new_with_equal_stakes(num_nodes, 10_000, 100, SocketAddrSpace::Unspecified);
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let nodes = cluster.get_node_pubkeys();
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// Get non leader
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let non_bootstrap_id = nodes
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.into_iter()
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.find(|id| *id != cluster.entry_point_info.id)
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.unwrap();
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let non_bootstrap_info = cluster.get_contact_info(&non_bootstrap_id).unwrap();
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let tx_client = create_client(
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non_bootstrap_info.client_facing_addr(),
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VALIDATOR_PORT_RANGE,
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);
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let (blockhash, _) = tx_client
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.get_latest_blockhash_with_commitment(CommitmentConfig::processed())
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.unwrap();
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let mut transaction = system_transaction::transfer(
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&cluster.funding_keypair,
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&solana_sdk::pubkey::new_rand(),
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10,
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blockhash,
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);
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let (mut sig_subscribe_client, receiver) = PubsubClient::signature_subscribe(
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&format!("ws://{}", &non_bootstrap_info.rpc_pubsub.to_string()),
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&transaction.signatures[0],
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Some(RpcSignatureSubscribeConfig {
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commitment: Some(CommitmentConfig::processed()),
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enable_received_notification: Some(true),
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}),
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)
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.unwrap();
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tx_client
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.retry_transfer(&cluster.funding_keypair, &mut transaction, 5)
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.unwrap();
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let mut got_received_notification = false;
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loop {
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let responses: Vec<_> = receiver.try_iter().collect();
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let mut should_break = false;
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for response in responses {
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match response.value {
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RpcSignatureResult::ProcessedSignature(_) => {
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should_break = true;
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break;
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}
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RpcSignatureResult::ReceivedSignature(_) => {
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got_received_notification = true;
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}
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}
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}
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if should_break {
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break;
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}
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sleep(Duration::from_millis(100));
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}
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// If we don't drop the cluster, the blocking web socket service
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// won't return, and the `sig_subscribe_client` won't shut down
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drop(cluster);
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sig_subscribe_client.shutdown().unwrap();
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assert!(got_received_notification);
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}
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#[test]
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#[allow(unused_attributes)]
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#[ignore]
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fn test_spend_and_verify_all_nodes_env_num_nodes() {
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solana_logger::setup_with_default(RUST_LOG_FILTER);
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let num_nodes: usize = std::env::var("NUM_NODES")
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.expect("please set environment variable NUM_NODES")
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.parse()
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.expect("could not parse NUM_NODES as a number");
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let local =
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LocalCluster::new_with_equal_stakes(num_nodes, 10_000, 100, SocketAddrSpace::Unspecified);
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cluster_tests::spend_and_verify_all_nodes(
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&local.entry_point_info,
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&local.funding_keypair,
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num_nodes,
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HashSet::new(),
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SocketAddrSpace::Unspecified,
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);
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}
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// Cluster needs a supermajority to remain, so the minimum size for this test is 4
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#[test]
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#[serial]
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fn test_leader_failure_4() {
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solana_logger::setup_with_default(RUST_LOG_FILTER);
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error!("test_leader_failure_4");
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let num_nodes = 4;
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let validator_config = ValidatorConfig::default();
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let mut config = ClusterConfig {
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cluster_lamports: 10_000,
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node_stakes: vec![100; 4],
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validator_configs: make_identical_validator_configs(&validator_config, num_nodes),
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..ClusterConfig::default()
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};
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let local = LocalCluster::new(&mut config, SocketAddrSpace::Unspecified);
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cluster_tests::kill_entry_and_spend_and_verify_rest(
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&local.entry_point_info,
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&local
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.validators
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.get(&local.entry_point_info.id)
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.unwrap()
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.config
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.validator_exit,
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&local.funding_keypair,
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num_nodes,
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config.ticks_per_slot * config.poh_config.target_tick_duration.as_millis() as u64,
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SocketAddrSpace::Unspecified,
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);
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}
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/// This function runs a network, initiates a partition based on a
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/// configuration, resolve the partition, then checks that the network
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/// continues to achieve consensus
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/// # Arguments
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/// * `partitions` - A slice of partition configurations, where each partition
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/// configuration is a slice of (usize, bool), representing a node's stake and
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/// whether or not it should be killed during the partition
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/// * `leader_schedule` - An option that specifies whether the cluster should
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/// run with a fixed, predetermined leader schedule
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#[allow(clippy::cognitive_complexity)]
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fn run_cluster_partition<C>(
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partitions: &[Vec<usize>],
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leader_schedule: Option<(LeaderSchedule, Vec<Arc<Keypair>>)>,
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mut context: C,
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on_partition_start: impl FnOnce(&mut LocalCluster, &mut C),
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on_before_partition_resolved: impl FnOnce(&mut LocalCluster, &mut C),
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on_partition_resolved: impl FnOnce(&mut LocalCluster, &mut C),
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partition_duration: Option<u64>,
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ticks_per_slot: Option<u64>,
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additional_accounts: Vec<(Pubkey, AccountSharedData)>,
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) {
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solana_logger::setup_with_default(RUST_LOG_FILTER);
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info!("PARTITION_TEST!");
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let num_nodes = partitions.len();
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let node_stakes: Vec<_> = partitions
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.iter()
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.flat_map(|p| p.iter().map(|stake_weight| 100 * *stake_weight as u64))
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.collect();
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assert_eq!(node_stakes.len(), num_nodes);
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let cluster_lamports = node_stakes.iter().sum::<u64>() * 2;
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let enable_partition = Arc::new(AtomicBool::new(true));
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let mut validator_config = ValidatorConfig {
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enable_partition: Some(enable_partition.clone()),
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..ValidatorConfig::default()
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};
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// Returns:
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// 1) The keys for the validators
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// 2) The amount of time it would take to iterate through one full iteration of the given
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// leader schedule
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let (validator_keys, leader_schedule_time): (Vec<_>, u64) = {
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if let Some((leader_schedule, validator_keys)) = leader_schedule {
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assert_eq!(validator_keys.len(), num_nodes);
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let num_slots_per_rotation = leader_schedule.num_slots() as u64;
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let fixed_schedule = FixedSchedule {
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start_epoch: 0,
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leader_schedule: Arc::new(leader_schedule),
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};
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validator_config.fixed_leader_schedule = Some(fixed_schedule);
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(
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validator_keys,
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num_slots_per_rotation * clock::DEFAULT_MS_PER_SLOT,
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)
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} else {
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(
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iter::repeat_with(|| Arc::new(Keypair::new()))
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.take(partitions.len())
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.collect(),
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10_000,
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)
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}
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};
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let slots_per_epoch = 2048;
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let mut config = ClusterConfig {
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cluster_lamports,
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node_stakes,
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validator_configs: make_identical_validator_configs(&validator_config, num_nodes),
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validator_keys: Some(
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validator_keys
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.into_iter()
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.zip(iter::repeat_with(|| true))
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.collect(),
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),
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slots_per_epoch,
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stakers_slot_offset: slots_per_epoch,
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skip_warmup_slots: true,
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additional_accounts,
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ticks_per_slot: ticks_per_slot.unwrap_or(DEFAULT_TICKS_PER_SLOT),
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..ClusterConfig::default()
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};
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|
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info!(
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"PARTITION_TEST starting cluster with {:?} partitions slots_per_epoch: {}",
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partitions, config.slots_per_epoch,
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);
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let mut cluster = LocalCluster::new(&mut config, SocketAddrSpace::Unspecified);
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info!("PARTITION_TEST spend_and_verify_all_nodes(), ensure all nodes are caught up");
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cluster_tests::spend_and_verify_all_nodes(
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&cluster.entry_point_info,
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&cluster.funding_keypair,
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num_nodes,
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HashSet::new(),
|
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SocketAddrSpace::Unspecified,
|
|
);
|
|
|
|
let cluster_nodes = discover_cluster(
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&cluster.entry_point_info.gossip,
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num_nodes,
|
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SocketAddrSpace::Unspecified,
|
|
)
|
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.unwrap();
|
|
|
|
// Check epochs have correct number of slots
|
|
info!("PARTITION_TEST sleeping until partition starting condition",);
|
|
for node in &cluster_nodes {
|
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let node_client = RpcClient::new_socket(node.rpc);
|
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let epoch_info = node_client.get_epoch_info().unwrap();
|
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assert_eq!(epoch_info.slots_in_epoch, slots_per_epoch);
|
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}
|
|
|
|
info!("PARTITION_TEST start partition");
|
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on_partition_start(&mut cluster, &mut context);
|
|
enable_partition.store(false, Ordering::Relaxed);
|
|
|
|
sleep(Duration::from_millis(
|
|
partition_duration.unwrap_or(leader_schedule_time),
|
|
));
|
|
|
|
on_before_partition_resolved(&mut cluster, &mut context);
|
|
info!("PARTITION_TEST remove partition");
|
|
enable_partition.store(true, Ordering::Relaxed);
|
|
|
|
// Give partitions time to propagate their blocks from during the partition
|
|
// after the partition resolves
|
|
let timeout = 10_000;
|
|
let propagation_time = leader_schedule_time;
|
|
info!(
|
|
"PARTITION_TEST resolving partition. sleeping {} ms",
|
|
timeout
|
|
);
|
|
sleep(Duration::from_millis(timeout));
|
|
info!(
|
|
"PARTITION_TEST waiting for blocks to propagate after partition {}ms",
|
|
propagation_time
|
|
);
|
|
sleep(Duration::from_millis(propagation_time));
|
|
info!("PARTITION_TEST resuming normal operation");
|
|
on_partition_resolved(&mut cluster, &mut context);
|
|
}
|
|
|
|
#[allow(unused_attributes)]
|
|
#[ignore]
|
|
#[test]
|
|
#[serial]
|
|
fn test_cluster_partition_1_2() {
|
|
let empty = |_: &mut LocalCluster, _: &mut ()| {};
|
|
let on_partition_resolved = |cluster: &mut LocalCluster, _: &mut ()| {
|
|
cluster.check_for_new_roots(16, "PARTITION_TEST", SocketAddrSpace::Unspecified);
|
|
};
|
|
run_cluster_partition(
|
|
&[vec![1], vec![1, 1]],
|
|
None,
|
|
(),
|
|
empty,
|
|
empty,
|
|
on_partition_resolved,
|
|
None,
|
|
None,
|
|
vec![],
|
|
)
|
|
}
|
|
|
|
#[test]
|
|
#[serial]
|
|
fn test_cluster_partition_1_1() {
|
|
let empty = |_: &mut LocalCluster, _: &mut ()| {};
|
|
let on_partition_resolved = |cluster: &mut LocalCluster, _: &mut ()| {
|
|
cluster.check_for_new_roots(16, "PARTITION_TEST", SocketAddrSpace::Unspecified);
|
|
};
|
|
run_cluster_partition(
|
|
&[vec![1], vec![1]],
|
|
None,
|
|
(),
|
|
empty,
|
|
empty,
|
|
on_partition_resolved,
|
|
None,
|
|
None,
|
|
vec![],
|
|
)
|
|
}
|
|
|
|
#[test]
|
|
#[serial]
|
|
fn test_cluster_partition_1_1_1() {
|
|
let empty = |_: &mut LocalCluster, _: &mut ()| {};
|
|
let on_partition_resolved = |cluster: &mut LocalCluster, _: &mut ()| {
|
|
cluster.check_for_new_roots(16, "PARTITION_TEST", SocketAddrSpace::Unspecified);
|
|
};
|
|
run_cluster_partition(
|
|
&[vec![1], vec![1], vec![1]],
|
|
None,
|
|
(),
|
|
empty,
|
|
empty,
|
|
on_partition_resolved,
|
|
None,
|
|
None,
|
|
vec![],
|
|
)
|
|
}
|
|
|
|
fn create_custom_leader_schedule(
|
|
validator_num_slots: &[usize],
|
|
) -> (LeaderSchedule, Vec<Arc<Keypair>>) {
|
|
let mut leader_schedule = vec![];
|
|
let validator_keys: Vec<_> = iter::repeat_with(|| Arc::new(Keypair::new()))
|
|
.take(validator_num_slots.len())
|
|
.collect();
|
|
for (k, num_slots) in validator_keys.iter().zip(validator_num_slots.iter()) {
|
|
for _ in 0..*num_slots {
|
|
leader_schedule.push(k.pubkey())
|
|
}
|
|
}
|
|
|
|
info!("leader_schedule: {}", leader_schedule.len());
|
|
(
|
|
LeaderSchedule::new_from_schedule(leader_schedule),
|
|
validator_keys,
|
|
)
|
|
}
|
|
|
|
#[test]
|
|
#[serial]
|
|
fn test_kill_heaviest_partition() {
|
|
// This test:
|
|
// 1) Spins up four partitions, the heaviest being the first with more stake
|
|
// 2) Schedules the other validators for sufficient slots in the schedule
|
|
// so that they will still be locked out of voting for the major partition
|
|
// when the partition resolves
|
|
// 3) Kills the most staked partition. Validators are locked out, but should all
|
|
// eventually choose the major partition
|
|
// 4) Check for recovery
|
|
let num_slots_per_validator = 8;
|
|
let partitions: [Vec<usize>; 4] = [vec![11], vec![10], vec![10], vec![10]];
|
|
let (leader_schedule, validator_keys) = create_custom_leader_schedule(&[
|
|
num_slots_per_validator * (partitions.len() - 1),
|
|
num_slots_per_validator,
|
|
num_slots_per_validator,
|
|
num_slots_per_validator,
|
|
]);
|
|
|
|
let empty = |_: &mut LocalCluster, _: &mut ()| {};
|
|
let validator_to_kill = validator_keys[0].pubkey();
|
|
let on_partition_resolved = |cluster: &mut LocalCluster, _: &mut ()| {
|
|
info!("Killing validator with id: {}", validator_to_kill);
|
|
cluster.exit_node(&validator_to_kill);
|
|
cluster.check_for_new_roots(16, "PARTITION_TEST", SocketAddrSpace::Unspecified);
|
|
};
|
|
run_cluster_partition(
|
|
&partitions,
|
|
Some((leader_schedule, validator_keys)),
|
|
(),
|
|
empty,
|
|
empty,
|
|
on_partition_resolved,
|
|
None,
|
|
None,
|
|
vec![],
|
|
)
|
|
}
|
|
|
|
#[allow(clippy::assertions_on_constants)]
|
|
fn run_kill_partition_switch_threshold<C>(
|
|
stakes_to_kill: &[&[(usize, usize)]],
|
|
alive_stakes: &[&[(usize, usize)]],
|
|
partition_duration: Option<u64>,
|
|
ticks_per_slot: Option<u64>,
|
|
partition_context: C,
|
|
on_partition_start: impl Fn(&mut LocalCluster, &[Pubkey], Vec<ClusterValidatorInfo>, &mut C),
|
|
on_before_partition_resolved: impl Fn(&mut LocalCluster, &mut C),
|
|
on_partition_resolved: impl Fn(&mut LocalCluster, &mut C),
|
|
) {
|
|
// Needs to be at least 1/3 or there will be no overlap
|
|
// with the confirmation supermajority 2/3
|
|
assert!(SWITCH_FORK_THRESHOLD >= 1f64 / 3f64);
|
|
info!(
|
|
"stakes_to_kill: {:?}, alive_stakes: {:?}",
|
|
stakes_to_kill, alive_stakes
|
|
);
|
|
|
|
// This test:
|
|
// 1) Spins up three partitions
|
|
// 2) Kills the first partition with the stake `failures_stake`
|
|
// 5) runs `on_partition_resolved`
|
|
let partitions: Vec<&[(usize, usize)]> = stakes_to_kill
|
|
.iter()
|
|
.cloned()
|
|
.chain(alive_stakes.iter().cloned())
|
|
.collect();
|
|
|
|
let stake_partitions: Vec<Vec<usize>> = partitions
|
|
.iter()
|
|
.map(|stakes_and_slots| stakes_and_slots.iter().map(|(stake, _)| *stake).collect())
|
|
.collect();
|
|
let num_slots_per_validator: Vec<usize> = partitions
|
|
.iter()
|
|
.flat_map(|stakes_and_slots| stakes_and_slots.iter().map(|(_, num_slots)| *num_slots))
|
|
.collect();
|
|
|
|
let (leader_schedule, validator_keys) = create_custom_leader_schedule(&num_slots_per_validator);
|
|
|
|
info!(
|
|
"Validator ids: {:?}",
|
|
validator_keys
|
|
.iter()
|
|
.map(|k| k.pubkey())
|
|
.collect::<Vec<_>>()
|
|
);
|
|
let validator_pubkeys: Vec<Pubkey> = validator_keys.iter().map(|k| k.pubkey()).collect();
|
|
let on_partition_start = |cluster: &mut LocalCluster, partition_context: &mut C| {
|
|
let dead_validator_infos: Vec<ClusterValidatorInfo> = validator_pubkeys
|
|
[0..stakes_to_kill.len()]
|
|
.iter()
|
|
.map(|validator_to_kill| {
|
|
info!("Killing validator with id: {}", validator_to_kill);
|
|
cluster.exit_node(validator_to_kill)
|
|
})
|
|
.collect();
|
|
on_partition_start(
|
|
cluster,
|
|
&validator_pubkeys,
|
|
dead_validator_infos,
|
|
partition_context,
|
|
);
|
|
};
|
|
run_cluster_partition(
|
|
&stake_partitions,
|
|
Some((leader_schedule, validator_keys)),
|
|
partition_context,
|
|
on_partition_start,
|
|
on_before_partition_resolved,
|
|
on_partition_resolved,
|
|
partition_duration,
|
|
ticks_per_slot,
|
|
vec![],
|
|
)
|
|
}
|
|
|
|
fn find_latest_replayed_slot_from_ledger(
|
|
ledger_path: &Path,
|
|
mut latest_slot: Slot,
|
|
) -> (Slot, HashSet<Slot>) {
|
|
loop {
|
|
let mut blockstore = open_blockstore(ledger_path);
|
|
// This is kind of a hack because we can't query for new frozen blocks over RPC
|
|
// since the validator is not voting.
|
|
let new_latest_slots: Vec<Slot> = blockstore
|
|
.slot_meta_iterator(latest_slot)
|
|
.unwrap()
|
|
.filter_map(|(s, _)| if s > latest_slot { Some(s) } else { None })
|
|
.collect();
|
|
|
|
for new_latest_slot in new_latest_slots {
|
|
latest_slot = new_latest_slot;
|
|
info!("Checking latest_slot {}", latest_slot);
|
|
// Wait for the slot to be fully received by the validator
|
|
let entries;
|
|
loop {
|
|
info!("Waiting for slot {} to be full", latest_slot);
|
|
if blockstore.is_full(latest_slot) {
|
|
entries = blockstore.get_slot_entries(latest_slot, 0).unwrap();
|
|
assert!(!entries.is_empty());
|
|
break;
|
|
} else {
|
|
sleep(Duration::from_millis(50));
|
|
blockstore = open_blockstore(ledger_path);
|
|
}
|
|
}
|
|
// Check the slot has been replayed
|
|
let non_tick_entry = entries.into_iter().find(|e| !e.transactions.is_empty());
|
|
if let Some(non_tick_entry) = non_tick_entry {
|
|
// Wait for the slot to be replayed
|
|
loop {
|
|
info!("Waiting for slot {} to be replayed", latest_slot);
|
|
if !blockstore
|
|
.map_transactions_to_statuses(
|
|
latest_slot,
|
|
non_tick_entry.transactions.clone().into_iter(),
|
|
)
|
|
.unwrap()
|
|
.is_empty()
|
|
{
|
|
return (
|
|
latest_slot,
|
|
AncestorIterator::new(latest_slot, &blockstore).collect(),
|
|
);
|
|
} else {
|
|
sleep(Duration::from_millis(50));
|
|
blockstore = open_blockstore(ledger_path);
|
|
}
|
|
}
|
|
} else {
|
|
info!(
|
|
"No transactions in slot {}, can't tell if it was replayed",
|
|
latest_slot
|
|
);
|
|
}
|
|
}
|
|
sleep(Duration::from_millis(50));
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
#[serial]
|
|
fn test_switch_threshold_uses_gossip_votes() {
|
|
solana_logger::setup_with_default(RUST_LOG_FILTER);
|
|
let total_stake = 100;
|
|
|
|
// Minimum stake needed to generate a switching proof
|
|
let minimum_switch_stake = (SWITCH_FORK_THRESHOLD as f64 * total_stake as f64) as u64;
|
|
|
|
// Make the heavier stake insufficient for switching so tha the lighter validator
|
|
// cannot switch without seeing a vote from the dead/failure_stake validator.
|
|
let heavier_stake = minimum_switch_stake;
|
|
let lighter_stake = heavier_stake - 1;
|
|
let failures_stake = total_stake - heavier_stake - lighter_stake;
|
|
|
|
let partitions: &[&[(usize, usize)]] = &[
|
|
&[(heavier_stake as usize, 8)],
|
|
&[(lighter_stake as usize, 8)],
|
|
];
|
|
|
|
#[derive(Default)]
|
|
struct PartitionContext {
|
|
heaviest_validator_key: Pubkey,
|
|
lighter_validator_key: Pubkey,
|
|
dead_validator_info: Option<ClusterValidatorInfo>,
|
|
}
|
|
|
|
let on_partition_start = |_cluster: &mut LocalCluster,
|
|
validator_keys: &[Pubkey],
|
|
mut dead_validator_infos: Vec<ClusterValidatorInfo>,
|
|
context: &mut PartitionContext| {
|
|
assert_eq!(dead_validator_infos.len(), 1);
|
|
context.dead_validator_info = Some(dead_validator_infos.pop().unwrap());
|
|
// validator_keys[0] is the validator that will be killed, i.e. the validator with
|
|
// stake == `failures_stake`
|
|
context.heaviest_validator_key = validator_keys[1];
|
|
context.lighter_validator_key = validator_keys[2];
|
|
};
|
|
|
|
let on_before_partition_resolved = |_: &mut LocalCluster, _: &mut PartitionContext| {};
|
|
|
|
// Check that new roots were set after the partition resolves (gives time
|
|
// for lockouts built during partition to resolve and gives validators an opportunity
|
|
// to try and switch forks)
|
|
let on_partition_resolved = |cluster: &mut LocalCluster, context: &mut PartitionContext| {
|
|
let lighter_validator_ledger_path = cluster.ledger_path(&context.lighter_validator_key);
|
|
let heavier_validator_ledger_path = cluster.ledger_path(&context.heaviest_validator_key);
|
|
|
|
let (lighter_validator_latest_vote, _) = last_vote_in_tower(
|
|
&lighter_validator_ledger_path,
|
|
&context.lighter_validator_key,
|
|
)
|
|
.unwrap();
|
|
|
|
info!(
|
|
"Lighter validator's latest vote is for slot {}",
|
|
lighter_validator_latest_vote
|
|
);
|
|
|
|
// Lighter partition should stop voting after detecting the heavier partition and try
|
|
// to switch. Loop until we see a greater vote by the heavier validator than the last
|
|
// vote made by the lighter validator on the lighter fork.
|
|
let mut heavier_validator_latest_vote;
|
|
let mut heavier_validator_latest_vote_hash;
|
|
let heavier_blockstore = open_blockstore(&heavier_validator_ledger_path);
|
|
loop {
|
|
let (sanity_check_lighter_validator_latest_vote, _) = last_vote_in_tower(
|
|
&lighter_validator_ledger_path,
|
|
&context.lighter_validator_key,
|
|
)
|
|
.unwrap();
|
|
|
|
// Lighter validator should stop voting, because `on_partition_resolved` is only
|
|
// called after a propagation time where blocks from the other fork should have
|
|
// finished propagating
|
|
assert_eq!(
|
|
sanity_check_lighter_validator_latest_vote,
|
|
lighter_validator_latest_vote
|
|
);
|
|
|
|
let (new_heavier_validator_latest_vote, new_heavier_validator_latest_vote_hash) =
|
|
last_vote_in_tower(
|
|
&heavier_validator_ledger_path,
|
|
&context.heaviest_validator_key,
|
|
)
|
|
.unwrap();
|
|
|
|
heavier_validator_latest_vote = new_heavier_validator_latest_vote;
|
|
heavier_validator_latest_vote_hash = new_heavier_validator_latest_vote_hash;
|
|
|
|
// Latest vote for each validator should be on different forks
|
|
assert_ne!(lighter_validator_latest_vote, heavier_validator_latest_vote);
|
|
if heavier_validator_latest_vote > lighter_validator_latest_vote {
|
|
let heavier_ancestors: HashSet<Slot> =
|
|
AncestorIterator::new(heavier_validator_latest_vote, &heavier_blockstore)
|
|
.collect();
|
|
assert!(!heavier_ancestors.contains(&lighter_validator_latest_vote));
|
|
break;
|
|
}
|
|
}
|
|
|
|
info!("Checking to make sure lighter validator doesn't switch");
|
|
let mut latest_slot = lighter_validator_latest_vote;
|
|
|
|
// Number of chances the validator had to switch votes but didn't
|
|
let mut total_voting_opportunities = 0;
|
|
while total_voting_opportunities <= 5 {
|
|
let (new_latest_slot, latest_slot_ancestors) =
|
|
find_latest_replayed_slot_from_ledger(&lighter_validator_ledger_path, latest_slot);
|
|
latest_slot = new_latest_slot;
|
|
// Ensure `latest_slot` is on the other fork
|
|
if latest_slot_ancestors.contains(&heavier_validator_latest_vote) {
|
|
let tower = restore_tower(
|
|
&lighter_validator_ledger_path,
|
|
&context.lighter_validator_key,
|
|
)
|
|
.unwrap();
|
|
// Check that there was an opportunity to vote
|
|
if !tower.is_locked_out(latest_slot, &latest_slot_ancestors) {
|
|
// Ensure the lighter blockstore has not voted again
|
|
let new_lighter_validator_latest_vote = tower.last_voted_slot().unwrap();
|
|
assert_eq!(
|
|
new_lighter_validator_latest_vote,
|
|
lighter_validator_latest_vote
|
|
);
|
|
info!(
|
|
"Incrementing voting opportunities: {}",
|
|
total_voting_opportunities
|
|
);
|
|
total_voting_opportunities += 1;
|
|
} else {
|
|
info!(
|
|
"Tower still locked out, can't vote for slot: {}",
|
|
latest_slot
|
|
);
|
|
}
|
|
} else if latest_slot > heavier_validator_latest_vote {
|
|
warn!(
|
|
"validator is still generating blocks on its own fork, last processed slot: {}",
|
|
latest_slot
|
|
);
|
|
}
|
|
sleep(Duration::from_millis(50));
|
|
}
|
|
|
|
// Make a vote from the killed validator for slot `heavier_validator_latest_vote` in gossip
|
|
info!(
|
|
"Simulate vote for slot: {} from dead validator",
|
|
heavier_validator_latest_vote
|
|
);
|
|
let vote_keypair = &context
|
|
.dead_validator_info
|
|
.as_ref()
|
|
.unwrap()
|
|
.info
|
|
.voting_keypair
|
|
.clone();
|
|
let node_keypair = &context
|
|
.dead_validator_info
|
|
.as_ref()
|
|
.unwrap()
|
|
.info
|
|
.keypair
|
|
.clone();
|
|
|
|
cluster_tests::submit_vote_to_cluster_gossip(
|
|
node_keypair,
|
|
vote_keypair,
|
|
heavier_validator_latest_vote,
|
|
heavier_validator_latest_vote_hash,
|
|
// Make the vote transaction with a random blockhash. Thus, the vote only lives in gossip but
|
|
// never makes it into a block
|
|
Hash::new_unique(),
|
|
cluster
|
|
.get_contact_info(&context.heaviest_validator_key)
|
|
.unwrap()
|
|
.gossip,
|
|
&SocketAddrSpace::Unspecified,
|
|
)
|
|
.unwrap();
|
|
|
|
loop {
|
|
// Wait for the lighter validator to switch to the heavier fork
|
|
let (new_lighter_validator_latest_vote, _) = last_vote_in_tower(
|
|
&lighter_validator_ledger_path,
|
|
&context.lighter_validator_key,
|
|
)
|
|
.unwrap();
|
|
|
|
if new_lighter_validator_latest_vote != lighter_validator_latest_vote {
|
|
info!(
|
|
"Lighter validator switched forks at slot: {}",
|
|
new_lighter_validator_latest_vote
|
|
);
|
|
let (heavier_validator_latest_vote, _) = last_vote_in_tower(
|
|
&heavier_validator_ledger_path,
|
|
&context.heaviest_validator_key,
|
|
)
|
|
.unwrap();
|
|
let (smaller, larger) =
|
|
if new_lighter_validator_latest_vote > heavier_validator_latest_vote {
|
|
(
|
|
heavier_validator_latest_vote,
|
|
new_lighter_validator_latest_vote,
|
|
)
|
|
} else {
|
|
(
|
|
new_lighter_validator_latest_vote,
|
|
heavier_validator_latest_vote,
|
|
)
|
|
};
|
|
|
|
// Check the new vote is on the same fork as the heaviest fork
|
|
let heavier_blockstore = open_blockstore(&heavier_validator_ledger_path);
|
|
let larger_slot_ancestors: HashSet<Slot> =
|
|
AncestorIterator::new(larger, &heavier_blockstore)
|
|
.chain(std::iter::once(larger))
|
|
.collect();
|
|
assert!(larger_slot_ancestors.contains(&smaller));
|
|
break;
|
|
} else {
|
|
sleep(Duration::from_millis(50));
|
|
}
|
|
}
|
|
};
|
|
|
|
let ticks_per_slot = 8;
|
|
run_kill_partition_switch_threshold(
|
|
&[&[(failures_stake as usize, 0)]],
|
|
partitions,
|
|
// Partition long enough such that the first vote made by validator with
|
|
// `alive_stake_3` won't be ingested due to BlockhashTooOld,
|
|
None,
|
|
Some(ticks_per_slot),
|
|
PartitionContext::default(),
|
|
on_partition_start,
|
|
on_before_partition_resolved,
|
|
on_partition_resolved,
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
#[serial]
|
|
fn test_kill_partition_switch_threshold_no_progress() {
|
|
let max_switch_threshold_failure_pct = 1.0 - 2.0 * SWITCH_FORK_THRESHOLD;
|
|
let total_stake = 10_000;
|
|
let max_failures_stake = (max_switch_threshold_failure_pct * total_stake as f64) as u64;
|
|
|
|
let failures_stake = max_failures_stake;
|
|
let total_alive_stake = total_stake - failures_stake;
|
|
let alive_stake_1 = total_alive_stake / 2;
|
|
let alive_stake_2 = total_alive_stake - alive_stake_1;
|
|
|
|
// Check that no new roots were set 400 slots after partition resolves (gives time
|
|
// for lockouts built during partition to resolve and gives validators an opportunity
|
|
// to try and switch forks)
|
|
let on_partition_start =
|
|
|_: &mut LocalCluster, _: &[Pubkey], _: Vec<ClusterValidatorInfo>, _: &mut ()| {};
|
|
let on_before_partition_resolved = |_: &mut LocalCluster, _: &mut ()| {};
|
|
let on_partition_resolved = |cluster: &mut LocalCluster, _: &mut ()| {
|
|
cluster.check_no_new_roots(400, "PARTITION_TEST", SocketAddrSpace::Unspecified);
|
|
};
|
|
|
|
// This kills `max_failures_stake`, so no progress should be made
|
|
run_kill_partition_switch_threshold(
|
|
&[&[(failures_stake as usize, 16)]],
|
|
&[
|
|
&[(alive_stake_1 as usize, 8)],
|
|
&[(alive_stake_2 as usize, 8)],
|
|
],
|
|
None,
|
|
None,
|
|
(),
|
|
on_partition_start,
|
|
on_before_partition_resolved,
|
|
on_partition_resolved,
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
#[serial]
|
|
fn test_kill_partition_switch_threshold_progress() {
|
|
let max_switch_threshold_failure_pct = 1.0 - 2.0 * SWITCH_FORK_THRESHOLD;
|
|
let total_stake = 10_000;
|
|
|
|
// Kill `< max_failures_stake` of the validators
|
|
let max_failures_stake = (max_switch_threshold_failure_pct * total_stake as f64) as u64;
|
|
let failures_stake = max_failures_stake - 1;
|
|
let total_alive_stake = total_stake - failures_stake;
|
|
|
|
// Partition the remaining alive validators, should still make progress
|
|
// once the partition resolves
|
|
let alive_stake_1 = total_alive_stake / 2;
|
|
let alive_stake_2 = total_alive_stake - alive_stake_1;
|
|
let bigger = std::cmp::max(alive_stake_1, alive_stake_2);
|
|
let smaller = std::cmp::min(alive_stake_1, alive_stake_2);
|
|
|
|
// At least one of the forks must have > SWITCH_FORK_THRESHOLD in order
|
|
// to guarantee switching proofs can be created. Make sure the other fork
|
|
// is <= SWITCH_FORK_THRESHOLD to make sure progress can be made. Caches
|
|
// bugs such as liveness issues bank-weighted fork choice, which may stall
|
|
// because the fork with less stake could have more weight, but other fork would:
|
|
// 1) Not be able to generate a switching proof
|
|
// 2) Other more staked fork stops voting, so doesn't catch up in bank weight.
|
|
assert!(
|
|
bigger as f64 / total_stake as f64 > SWITCH_FORK_THRESHOLD
|
|
&& smaller as f64 / total_stake as f64 <= SWITCH_FORK_THRESHOLD
|
|
);
|
|
|
|
let on_partition_start =
|
|
|_: &mut LocalCluster, _: &[Pubkey], _: Vec<ClusterValidatorInfo>, _: &mut ()| {};
|
|
let on_before_partition_resolved = |_: &mut LocalCluster, _: &mut ()| {};
|
|
let on_partition_resolved = |cluster: &mut LocalCluster, _: &mut ()| {
|
|
cluster.check_for_new_roots(16, "PARTITION_TEST", SocketAddrSpace::Unspecified);
|
|
};
|
|
run_kill_partition_switch_threshold(
|
|
&[&[(failures_stake as usize, 16)]],
|
|
&[
|
|
&[(alive_stake_1 as usize, 8)],
|
|
&[(alive_stake_2 as usize, 8)],
|
|
],
|
|
None,
|
|
None,
|
|
(),
|
|
on_partition_start,
|
|
on_before_partition_resolved,
|
|
on_partition_resolved,
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
#[serial]
|
|
// Steps in this test:
|
|
// We want to create a situation like:
|
|
/*
|
|
1 (2%, killed and restarted) --- 200 (37%, lighter fork)
|
|
/
|
|
0
|
|
\-------- 4 (38%, heavier fork)
|
|
*/
|
|
// where the 2% that voted on slot 1 don't see their votes land in a block
|
|
// due to blockhash expiration, and thus without resigning their votes with
|
|
// a newer blockhash, will deem slot 4 the heavier fork and try to switch to
|
|
// slot 4, which doesn't pass the switch threshold. This stalls the network.
|
|
|
|
// We do this by:
|
|
// 1) Creating a partition so all three nodes don't see each other
|
|
// 2) Kill the validator with 2%
|
|
// 3) Wait for longer than blockhash expiration
|
|
// 4) Copy in the lighter fork's blocks up, *only* up to the first slot in the lighter fork
|
|
// (not all the blocks on the lighter fork!), call this slot `L`
|
|
// 5) Restart the validator with 2% so that he votes on `L`, but the vote doesn't land
|
|
// due to blockhash expiration
|
|
// 6) Resolve the partition so that the 2% repairs the other fork, and tries to switch,
|
|
// stalling the network.
|
|
|
|
fn test_fork_choice_refresh_old_votes() {
|
|
solana_logger::setup_with_default(RUST_LOG_FILTER);
|
|
let max_switch_threshold_failure_pct = 1.0 - 2.0 * SWITCH_FORK_THRESHOLD;
|
|
let total_stake = 100;
|
|
let max_failures_stake = (max_switch_threshold_failure_pct * total_stake as f64) as u64;
|
|
|
|
// 1% less than the failure stake, where the 2% is allocated to a validator that
|
|
// has no leader slots and thus won't be able to vote on its own fork.
|
|
let failures_stake = max_failures_stake;
|
|
let total_alive_stake = total_stake - failures_stake;
|
|
let alive_stake_1 = total_alive_stake / 2 - 1;
|
|
let alive_stake_2 = total_alive_stake - alive_stake_1 - 1;
|
|
|
|
// Heavier fork still doesn't have enough stake to switch. Both branches need
|
|
// the vote to land from the validator with `alive_stake_3` to allow the other
|
|
// fork to switch.
|
|
let alive_stake_3 = 2;
|
|
assert!(alive_stake_1 < alive_stake_2);
|
|
assert!(alive_stake_1 + alive_stake_3 > alive_stake_2);
|
|
|
|
let partitions: &[&[(usize, usize)]] = &[
|
|
&[(alive_stake_1 as usize, 8)],
|
|
&[(alive_stake_2 as usize, 8)],
|
|
&[(alive_stake_3 as usize, 0)],
|
|
];
|
|
|
|
#[derive(Default)]
|
|
struct PartitionContext {
|
|
alive_stake3_info: Option<ClusterValidatorInfo>,
|
|
smallest_validator_key: Pubkey,
|
|
lighter_fork_validator_key: Pubkey,
|
|
heaviest_validator_key: Pubkey,
|
|
}
|
|
let on_partition_start = |cluster: &mut LocalCluster,
|
|
validator_keys: &[Pubkey],
|
|
_: Vec<ClusterValidatorInfo>,
|
|
context: &mut PartitionContext| {
|
|
// Kill validator with alive_stake_3, second in `partitions` slice
|
|
let smallest_validator_key = &validator_keys[3];
|
|
let info = cluster.exit_node(smallest_validator_key);
|
|
context.alive_stake3_info = Some(info);
|
|
context.smallest_validator_key = *smallest_validator_key;
|
|
// validator_keys[0] is the validator that will be killed, i.e. the validator with
|
|
// stake == `failures_stake`
|
|
context.lighter_fork_validator_key = validator_keys[1];
|
|
// Third in `partitions` slice
|
|
context.heaviest_validator_key = validator_keys[2];
|
|
};
|
|
|
|
let ticks_per_slot = 8;
|
|
let on_before_partition_resolved =
|
|
|cluster: &mut LocalCluster, context: &mut PartitionContext| {
|
|
// Equal to ms_per_slot * MAX_RECENT_BLOCKHASHES, rounded up
|
|
let sleep_time_ms =
|
|
((ticks_per_slot * DEFAULT_MS_PER_SLOT * MAX_RECENT_BLOCKHASHES as u64)
|
|
+ DEFAULT_TICKS_PER_SLOT
|
|
- 1)
|
|
/ DEFAULT_TICKS_PER_SLOT;
|
|
info!("Wait for blockhashes to expire, {} ms", sleep_time_ms);
|
|
|
|
// Wait for blockhashes to expire
|
|
sleep(Duration::from_millis(sleep_time_ms));
|
|
|
|
let smallest_ledger_path = context
|
|
.alive_stake3_info
|
|
.as_ref()
|
|
.unwrap()
|
|
.info
|
|
.ledger_path
|
|
.clone();
|
|
let lighter_fork_ledger_path = cluster.ledger_path(&context.lighter_fork_validator_key);
|
|
let heaviest_ledger_path = cluster.ledger_path(&context.heaviest_validator_key);
|
|
|
|
// Get latest votes. We make sure to wait until the vote has landed in
|
|
// blockstore. This is important because if we were the leader for the block there
|
|
// is a possibility of voting before broadcast has inserted in blockstore.
|
|
let lighter_fork_latest_vote = wait_for_last_vote_in_tower_to_land_in_ledger(
|
|
&lighter_fork_ledger_path,
|
|
&context.lighter_fork_validator_key,
|
|
);
|
|
let heaviest_fork_latest_vote = wait_for_last_vote_in_tower_to_land_in_ledger(
|
|
&heaviest_ledger_path,
|
|
&context.heaviest_validator_key,
|
|
);
|
|
|
|
// Open ledgers
|
|
let smallest_blockstore = open_blockstore(&smallest_ledger_path);
|
|
let lighter_fork_blockstore = open_blockstore(&lighter_fork_ledger_path);
|
|
let heaviest_blockstore = open_blockstore(&heaviest_ledger_path);
|
|
|
|
info!("Opened blockstores");
|
|
|
|
// Find the first slot on the smaller fork
|
|
let lighter_ancestors: BTreeSet<Slot> = std::iter::once(lighter_fork_latest_vote)
|
|
.chain(AncestorIterator::new(
|
|
lighter_fork_latest_vote,
|
|
&lighter_fork_blockstore,
|
|
))
|
|
.collect();
|
|
let heavier_ancestors: BTreeSet<Slot> = std::iter::once(heaviest_fork_latest_vote)
|
|
.chain(AncestorIterator::new(
|
|
heaviest_fork_latest_vote,
|
|
&heaviest_blockstore,
|
|
))
|
|
.collect();
|
|
let first_slot_in_lighter_partition = *lighter_ancestors
|
|
.iter()
|
|
.zip(heavier_ancestors.iter())
|
|
.find(|(x, y)| x != y)
|
|
.unwrap()
|
|
.0;
|
|
|
|
// Must have been updated in the above loop
|
|
assert!(first_slot_in_lighter_partition != 0);
|
|
info!(
|
|
"First slot in lighter partition is {}",
|
|
first_slot_in_lighter_partition
|
|
);
|
|
|
|
// Copy all the blocks from the smaller partition up to `first_slot_in_lighter_partition`
|
|
// into the smallest validator's blockstore
|
|
copy_blocks(
|
|
first_slot_in_lighter_partition,
|
|
&lighter_fork_blockstore,
|
|
&smallest_blockstore,
|
|
);
|
|
|
|
// Restart the smallest validator that we killed earlier in `on_partition_start()`
|
|
drop(smallest_blockstore);
|
|
cluster.restart_node(
|
|
&context.smallest_validator_key,
|
|
context.alive_stake3_info.take().unwrap(),
|
|
SocketAddrSpace::Unspecified,
|
|
);
|
|
|
|
loop {
|
|
// Wait for node to vote on the first slot on the less heavy fork, so it'll need
|
|
// a switch proof to flip to the other fork.
|
|
// However, this vote won't land because it's using an expired blockhash. The
|
|
// fork structure will look something like this after the vote:
|
|
/*
|
|
1 (2%, killed and restarted) --- 200 (37%, lighter fork)
|
|
/
|
|
0
|
|
\-------- 4 (38%, heavier fork)
|
|
*/
|
|
if let Some((last_vote_slot, _last_vote_hash)) =
|
|
last_vote_in_tower(&smallest_ledger_path, &context.smallest_validator_key)
|
|
{
|
|
// Check that the heaviest validator on the other fork doesn't have this slot,
|
|
// this must mean we voted on a unique slot on this fork
|
|
if last_vote_slot == first_slot_in_lighter_partition {
|
|
info!(
|
|
"Saw vote on first slot in lighter partition {}",
|
|
first_slot_in_lighter_partition
|
|
);
|
|
break;
|
|
} else {
|
|
info!(
|
|
"Haven't seen vote on first slot in lighter partition, latest vote is: {}",
|
|
last_vote_slot
|
|
);
|
|
}
|
|
}
|
|
|
|
sleep(Duration::from_millis(20));
|
|
}
|
|
|
|
// Now resolve partition, allow validator to see the fork with the heavier validator,
|
|
// but the fork it's currently on is the heaviest, if only its own vote landed!
|
|
};
|
|
|
|
// Check that new roots were set after the partition resolves (gives time
|
|
// for lockouts built during partition to resolve and gives validators an opportunity
|
|
// to try and switch forks)
|
|
let on_partition_resolved = |cluster: &mut LocalCluster, _: &mut PartitionContext| {
|
|
cluster.check_for_new_roots(16, "PARTITION_TEST", SocketAddrSpace::Unspecified);
|
|
};
|
|
|
|
run_kill_partition_switch_threshold(
|
|
&[&[(failures_stake as usize - 1, 16)]],
|
|
partitions,
|
|
// Partition long enough such that the first vote made by validator with
|
|
// `alive_stake_3` won't be ingested due to BlockhashTooOld,
|
|
None,
|
|
Some(ticks_per_slot),
|
|
PartitionContext::default(),
|
|
on_partition_start,
|
|
on_before_partition_resolved,
|
|
on_partition_resolved,
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
#[serial]
|
|
fn test_two_unbalanced_stakes() {
|
|
solana_logger::setup_with_default(RUST_LOG_FILTER);
|
|
error!("test_two_unbalanced_stakes");
|
|
let validator_config = ValidatorConfig::default();
|
|
let num_ticks_per_second = 100;
|
|
let num_ticks_per_slot = 10;
|
|
let num_slots_per_epoch = MINIMUM_SLOTS_PER_EPOCH as u64;
|
|
|
|
let mut cluster = LocalCluster::new(
|
|
&mut ClusterConfig {
|
|
node_stakes: vec![999_990, 3],
|
|
cluster_lamports: 1_000_000,
|
|
validator_configs: make_identical_validator_configs(&validator_config, 2),
|
|
ticks_per_slot: num_ticks_per_slot,
|
|
slots_per_epoch: num_slots_per_epoch,
|
|
stakers_slot_offset: num_slots_per_epoch,
|
|
poh_config: PohConfig::new_sleep(Duration::from_millis(1000 / num_ticks_per_second)),
|
|
..ClusterConfig::default()
|
|
},
|
|
SocketAddrSpace::Unspecified,
|
|
);
|
|
|
|
cluster_tests::sleep_n_epochs(
|
|
10.0,
|
|
&cluster.genesis_config.poh_config,
|
|
num_ticks_per_slot,
|
|
num_slots_per_epoch,
|
|
);
|
|
cluster.close_preserve_ledgers();
|
|
let leader_pubkey = cluster.entry_point_info.id;
|
|
let leader_ledger = cluster.validators[&leader_pubkey].info.ledger_path.clone();
|
|
cluster_tests::verify_ledger_ticks(&leader_ledger, num_ticks_per_slot as usize);
|
|
}
|
|
|
|
#[test]
|
|
#[serial]
|
|
fn test_forwarding() {
|
|
// Set up a cluster where one node is never the leader, so all txs sent to this node
|
|
// will be have to be forwarded in order to be confirmed
|
|
let mut config = ClusterConfig {
|
|
node_stakes: vec![999_990, 3],
|
|
cluster_lamports: 2_000_000,
|
|
validator_configs: make_identical_validator_configs(&ValidatorConfig::default(), 2),
|
|
..ClusterConfig::default()
|
|
};
|
|
let cluster = LocalCluster::new(&mut config, SocketAddrSpace::Unspecified);
|
|
|
|
let cluster_nodes = discover_cluster(
|
|
&cluster.entry_point_info.gossip,
|
|
2,
|
|
SocketAddrSpace::Unspecified,
|
|
)
|
|
.unwrap();
|
|
assert!(cluster_nodes.len() >= 2);
|
|
|
|
let leader_pubkey = cluster.entry_point_info.id;
|
|
|
|
let validator_info = cluster_nodes
|
|
.iter()
|
|
.find(|c| c.id != leader_pubkey)
|
|
.unwrap();
|
|
|
|
// Confirm that transactions were forwarded to and processed by the leader.
|
|
cluster_tests::send_many_transactions(validator_info, &cluster.funding_keypair, 10, 20);
|
|
}
|
|
|
|
#[test]
|
|
#[serial]
|
|
fn test_restart_node() {
|
|
solana_logger::setup_with_default(RUST_LOG_FILTER);
|
|
error!("test_restart_node");
|
|
let slots_per_epoch = MINIMUM_SLOTS_PER_EPOCH * 2;
|
|
let ticks_per_slot = 16;
|
|
let validator_config = ValidatorConfig::default();
|
|
let mut cluster = LocalCluster::new(
|
|
&mut ClusterConfig {
|
|
node_stakes: vec![100; 1],
|
|
cluster_lamports: 100,
|
|
validator_configs: vec![safe_clone_config(&validator_config)],
|
|
ticks_per_slot,
|
|
slots_per_epoch,
|
|
stakers_slot_offset: slots_per_epoch,
|
|
..ClusterConfig::default()
|
|
},
|
|
SocketAddrSpace::Unspecified,
|
|
);
|
|
let nodes = cluster.get_node_pubkeys();
|
|
cluster_tests::sleep_n_epochs(
|
|
1.0,
|
|
&cluster.genesis_config.poh_config,
|
|
clock::DEFAULT_TICKS_PER_SLOT,
|
|
slots_per_epoch,
|
|
);
|
|
cluster.exit_restart_node(&nodes[0], validator_config, SocketAddrSpace::Unspecified);
|
|
cluster_tests::sleep_n_epochs(
|
|
0.5,
|
|
&cluster.genesis_config.poh_config,
|
|
clock::DEFAULT_TICKS_PER_SLOT,
|
|
slots_per_epoch,
|
|
);
|
|
cluster_tests::send_many_transactions(
|
|
&cluster.entry_point_info,
|
|
&cluster.funding_keypair,
|
|
10,
|
|
1,
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
#[serial]
|
|
fn test_listener_startup() {
|
|
let mut config = ClusterConfig {
|
|
node_stakes: vec![100; 1],
|
|
cluster_lamports: 1_000,
|
|
num_listeners: 3,
|
|
validator_configs: make_identical_validator_configs(&ValidatorConfig::default(), 1),
|
|
..ClusterConfig::default()
|
|
};
|
|
let cluster = LocalCluster::new(&mut config, SocketAddrSpace::Unspecified);
|
|
let cluster_nodes = discover_cluster(
|
|
&cluster.entry_point_info.gossip,
|
|
4,
|
|
SocketAddrSpace::Unspecified,
|
|
)
|
|
.unwrap();
|
|
assert_eq!(cluster_nodes.len(), 4);
|
|
}
|
|
|
|
#[test]
|
|
#[serial]
|
|
fn test_mainnet_beta_cluster_type() {
|
|
solana_logger::setup_with_default(RUST_LOG_FILTER);
|
|
|
|
let mut config = ClusterConfig {
|
|
cluster_type: ClusterType::MainnetBeta,
|
|
node_stakes: vec![100; 1],
|
|
cluster_lamports: 1_000,
|
|
validator_configs: make_identical_validator_configs(&ValidatorConfig::default(), 1),
|
|
..ClusterConfig::default()
|
|
};
|
|
let cluster = LocalCluster::new(&mut config, SocketAddrSpace::Unspecified);
|
|
let cluster_nodes = discover_cluster(
|
|
&cluster.entry_point_info.gossip,
|
|
1,
|
|
SocketAddrSpace::Unspecified,
|
|
)
|
|
.unwrap();
|
|
assert_eq!(cluster_nodes.len(), 1);
|
|
|
|
let client = create_client(
|
|
cluster.entry_point_info.client_facing_addr(),
|
|
VALIDATOR_PORT_RANGE,
|
|
);
|
|
|
|
// Programs that are available at epoch 0
|
|
for program_id in [
|
|
&solana_config_program::id(),
|
|
&solana_sdk::system_program::id(),
|
|
&solana_sdk::stake::program::id(),
|
|
&solana_vote_program::id(),
|
|
&solana_sdk::bpf_loader_deprecated::id(),
|
|
&solana_sdk::bpf_loader::id(),
|
|
&solana_sdk::bpf_loader_upgradeable::id(),
|
|
]
|
|
.iter()
|
|
{
|
|
assert_matches!(
|
|
(
|
|
program_id,
|
|
client
|
|
.get_account_with_commitment(program_id, CommitmentConfig::processed())
|
|
.unwrap()
|
|
),
|
|
(_program_id, Some(_))
|
|
);
|
|
}
|
|
|
|
// Programs that are not available at epoch 0
|
|
for program_id in [].iter() {
|
|
assert_eq!(
|
|
(
|
|
program_id,
|
|
client
|
|
.get_account_with_commitment(program_id, CommitmentConfig::processed())
|
|
.unwrap()
|
|
),
|
|
(program_id, None)
|
|
);
|
|
}
|
|
}
|
|
|
|
fn generate_frozen_account_panic(mut cluster: LocalCluster, frozen_account: Arc<Keypair>) {
|
|
let client = cluster
|
|
.get_validator_client(&frozen_account.pubkey())
|
|
.unwrap();
|
|
|
|
// Check the validator is alive by poking it over RPC
|
|
trace!(
|
|
"validator slot: {}",
|
|
client
|
|
.get_slot_with_commitment(CommitmentConfig::processed())
|
|
.expect("get slot")
|
|
);
|
|
|
|
// Reset the frozen account panic signal
|
|
solana_runtime::accounts_db::FROZEN_ACCOUNT_PANIC.store(false, Ordering::Relaxed);
|
|
|
|
// Wait for the frozen account panic signal
|
|
let mut i = 0;
|
|
while !solana_runtime::accounts_db::FROZEN_ACCOUNT_PANIC.load(Ordering::Relaxed) {
|
|
// Transfer from frozen account
|
|
let (blockhash, _) = client
|
|
.get_latest_blockhash_with_commitment(CommitmentConfig::processed())
|
|
.unwrap();
|
|
client
|
|
.async_transfer(
|
|
1,
|
|
&frozen_account,
|
|
&solana_sdk::pubkey::new_rand(),
|
|
blockhash,
|
|
)
|
|
.unwrap();
|
|
|
|
sleep(Duration::from_secs(1));
|
|
i += 1;
|
|
if i > 10 {
|
|
panic!("FROZEN_ACCOUNT_PANIC still false");
|
|
}
|
|
}
|
|
|
|
// The validator is now broken and won't shutdown properly. Avoid LocalCluster panic in Drop
|
|
// with some manual cleanup:
|
|
cluster.exit();
|
|
cluster.validators = HashMap::default();
|
|
}
|
|
|
|
#[test]
|
|
#[serial]
|
|
fn test_frozen_account_from_genesis() {
|
|
solana_logger::setup_with_default(RUST_LOG_FILTER);
|
|
let validator_identity =
|
|
Arc::new(solana_sdk::signature::keypair_from_seed(&[0u8; 32]).unwrap());
|
|
|
|
let mut config = ClusterConfig {
|
|
validator_keys: Some(vec![(validator_identity.clone(), true)]),
|
|
node_stakes: vec![100; 1],
|
|
cluster_lamports: 1_000,
|
|
validator_configs: vec![ValidatorConfig {
|
|
// Freeze the validator identity account
|
|
frozen_accounts: vec![validator_identity.pubkey()],
|
|
..ValidatorConfig::default()
|
|
}],
|
|
..ClusterConfig::default()
|
|
};
|
|
generate_frozen_account_panic(
|
|
LocalCluster::new(&mut config, SocketAddrSpace::Unspecified),
|
|
validator_identity,
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
#[serial]
|
|
fn test_frozen_account_from_snapshot() {
|
|
solana_logger::setup_with_default(RUST_LOG_FILTER);
|
|
let validator_identity =
|
|
Arc::new(solana_sdk::signature::keypair_from_seed(&[0u8; 32]).unwrap());
|
|
|
|
let mut snapshot_test_config = setup_snapshot_validator_config(5, 1);
|
|
// Freeze the validator identity account
|
|
snapshot_test_config.validator_config.frozen_accounts = vec![validator_identity.pubkey()];
|
|
|
|
let mut config = ClusterConfig {
|
|
validator_keys: Some(vec![(validator_identity.clone(), true)]),
|
|
node_stakes: vec![100; 1],
|
|
cluster_lamports: 1_000,
|
|
validator_configs: make_identical_validator_configs(
|
|
&snapshot_test_config.validator_config,
|
|
1,
|
|
),
|
|
..ClusterConfig::default()
|
|
};
|
|
let mut cluster = LocalCluster::new(&mut config, SocketAddrSpace::Unspecified);
|
|
|
|
let snapshot_archives_dir = &snapshot_test_config
|
|
.validator_config
|
|
.snapshot_config
|
|
.as_ref()
|
|
.unwrap()
|
|
.snapshot_archives_dir;
|
|
|
|
trace!("Waiting for snapshot at {:?}", snapshot_archives_dir);
|
|
let (archive_filename, _archive_snapshot_hash) =
|
|
wait_for_next_snapshot(&cluster, snapshot_archives_dir);
|
|
|
|
trace!("Found snapshot: {:?}", archive_filename);
|
|
|
|
// Restart the validator from a snapshot
|
|
let validator_info = cluster.exit_node(&validator_identity.pubkey());
|
|
cluster.restart_node(
|
|
&validator_identity.pubkey(),
|
|
validator_info,
|
|
SocketAddrSpace::Unspecified,
|
|
);
|
|
|
|
generate_frozen_account_panic(cluster, validator_identity);
|
|
}
|
|
|
|
#[test]
|
|
#[serial]
|
|
fn test_consistency_halt() {
|
|
solana_logger::setup_with_default(RUST_LOG_FILTER);
|
|
let snapshot_interval_slots = 20;
|
|
let num_account_paths = 1;
|
|
|
|
// Create cluster with a leader producing bad snapshot hashes.
|
|
let mut leader_snapshot_test_config =
|
|
setup_snapshot_validator_config(snapshot_interval_slots, num_account_paths);
|
|
leader_snapshot_test_config
|
|
.validator_config
|
|
.accounts_hash_fault_injection_slots = 40;
|
|
|
|
let validator_stake = 10_000;
|
|
let mut config = ClusterConfig {
|
|
node_stakes: vec![validator_stake],
|
|
cluster_lamports: 100_000,
|
|
validator_configs: vec![leader_snapshot_test_config.validator_config],
|
|
..ClusterConfig::default()
|
|
};
|
|
|
|
let mut cluster = LocalCluster::new(&mut config, SocketAddrSpace::Unspecified);
|
|
|
|
sleep(Duration::from_millis(5000));
|
|
let cluster_nodes = discover_cluster(
|
|
&cluster.entry_point_info.gossip,
|
|
1,
|
|
SocketAddrSpace::Unspecified,
|
|
)
|
|
.unwrap();
|
|
info!("num_nodes: {}", cluster_nodes.len());
|
|
|
|
// Add a validator with the leader as trusted, it should halt when it detects
|
|
// mismatch.
|
|
let mut validator_snapshot_test_config =
|
|
setup_snapshot_validator_config(snapshot_interval_slots, num_account_paths);
|
|
|
|
let mut trusted_validators = HashSet::new();
|
|
trusted_validators.insert(cluster_nodes[0].id);
|
|
|
|
validator_snapshot_test_config
|
|
.validator_config
|
|
.trusted_validators = Some(trusted_validators);
|
|
validator_snapshot_test_config
|
|
.validator_config
|
|
.halt_on_trusted_validators_accounts_hash_mismatch = true;
|
|
|
|
warn!("adding a validator");
|
|
cluster.add_validator(
|
|
&validator_snapshot_test_config.validator_config,
|
|
validator_stake as u64,
|
|
Arc::new(Keypair::new()),
|
|
None,
|
|
SocketAddrSpace::Unspecified,
|
|
);
|
|
let num_nodes = 2;
|
|
assert_eq!(
|
|
discover_cluster(
|
|
&cluster.entry_point_info.gossip,
|
|
num_nodes,
|
|
SocketAddrSpace::Unspecified
|
|
)
|
|
.unwrap()
|
|
.len(),
|
|
num_nodes
|
|
);
|
|
|
|
// Check for only 1 node on the network.
|
|
let mut encountered_error = false;
|
|
loop {
|
|
let discover = discover_cluster(
|
|
&cluster.entry_point_info.gossip,
|
|
2,
|
|
SocketAddrSpace::Unspecified,
|
|
);
|
|
match discover {
|
|
Err(_) => {
|
|
encountered_error = true;
|
|
break;
|
|
}
|
|
Ok(nodes) => {
|
|
if nodes.len() < 2 {
|
|
encountered_error = true;
|
|
break;
|
|
}
|
|
info!("checking cluster for fewer nodes.. {:?}", nodes.len());
|
|
}
|
|
}
|
|
let client = cluster
|
|
.get_validator_client(&cluster.entry_point_info.id)
|
|
.unwrap();
|
|
if let Ok(slot) = client.get_slot() {
|
|
if slot > 210 {
|
|
break;
|
|
}
|
|
info!("slot: {}", slot);
|
|
}
|
|
sleep(Duration::from_millis(1000));
|
|
}
|
|
assert!(encountered_error);
|
|
}
|
|
|
|
#[test]
|
|
#[serial]
|
|
fn test_snapshot_download() {
|
|
solana_logger::setup_with_default(RUST_LOG_FILTER);
|
|
// First set up the cluster with 1 node
|
|
let snapshot_interval_slots = 50;
|
|
let num_account_paths = 3;
|
|
|
|
let leader_snapshot_test_config =
|
|
setup_snapshot_validator_config(snapshot_interval_slots, num_account_paths);
|
|
let validator_snapshot_test_config =
|
|
setup_snapshot_validator_config(snapshot_interval_slots, num_account_paths);
|
|
|
|
let stake = 10_000;
|
|
let mut config = ClusterConfig {
|
|
node_stakes: vec![stake],
|
|
cluster_lamports: 1_000_000,
|
|
validator_configs: make_identical_validator_configs(
|
|
&leader_snapshot_test_config.validator_config,
|
|
1,
|
|
),
|
|
..ClusterConfig::default()
|
|
};
|
|
|
|
let mut cluster = LocalCluster::new(&mut config, SocketAddrSpace::Unspecified);
|
|
|
|
// Get slot after which this was generated
|
|
let snapshot_archives_dir = &leader_snapshot_test_config
|
|
.validator_config
|
|
.snapshot_config
|
|
.as_ref()
|
|
.unwrap()
|
|
.snapshot_archives_dir;
|
|
|
|
trace!("Waiting for snapshot");
|
|
let (archive_filename, archive_snapshot_hash) =
|
|
wait_for_next_snapshot(&cluster, snapshot_archives_dir);
|
|
trace!("found: {:?}", archive_filename);
|
|
|
|
// Download the snapshot, then boot a validator from it.
|
|
download_snapshot(
|
|
&cluster.entry_point_info.rpc,
|
|
validator_snapshot_test_config.snapshot_archives_dir.path(),
|
|
archive_snapshot_hash,
|
|
false,
|
|
snapshot_utils::DEFAULT_MAX_FULL_SNAPSHOT_ARCHIVES_TO_RETAIN,
|
|
snapshot_utils::DEFAULT_MAX_INCREMENTAL_SNAPSHOT_ARCHIVES_TO_RETAIN,
|
|
&mut None,
|
|
)
|
|
.unwrap();
|
|
|
|
cluster.add_validator(
|
|
&validator_snapshot_test_config.validator_config,
|
|
stake,
|
|
Arc::new(Keypair::new()),
|
|
None,
|
|
SocketAddrSpace::Unspecified,
|
|
);
|
|
}
|
|
|
|
#[allow(unused_attributes)]
|
|
#[test]
|
|
#[serial]
|
|
fn test_snapshot_restart_tower() {
|
|
solana_logger::setup_with_default(RUST_LOG_FILTER);
|
|
// First set up the cluster with 2 nodes
|
|
let snapshot_interval_slots = 10;
|
|
let num_account_paths = 2;
|
|
|
|
let leader_snapshot_test_config =
|
|
setup_snapshot_validator_config(snapshot_interval_slots, num_account_paths);
|
|
let validator_snapshot_test_config =
|
|
setup_snapshot_validator_config(snapshot_interval_slots, num_account_paths);
|
|
|
|
let mut config = ClusterConfig {
|
|
node_stakes: vec![10000, 10],
|
|
cluster_lamports: 100_000,
|
|
validator_configs: vec![
|
|
safe_clone_config(&leader_snapshot_test_config.validator_config),
|
|
safe_clone_config(&validator_snapshot_test_config.validator_config),
|
|
],
|
|
..ClusterConfig::default()
|
|
};
|
|
|
|
let mut cluster = LocalCluster::new(&mut config, SocketAddrSpace::Unspecified);
|
|
|
|
// Let the nodes run for a while, then stop one of the validators
|
|
sleep(Duration::from_millis(5000));
|
|
let all_pubkeys = cluster.get_node_pubkeys();
|
|
let validator_id = all_pubkeys
|
|
.into_iter()
|
|
.find(|x| *x != cluster.entry_point_info.id)
|
|
.unwrap();
|
|
let validator_info = cluster.exit_node(&validator_id);
|
|
|
|
// Get slot after which this was generated
|
|
let snapshot_archives_dir = &leader_snapshot_test_config
|
|
.validator_config
|
|
.snapshot_config
|
|
.as_ref()
|
|
.unwrap()
|
|
.snapshot_archives_dir;
|
|
|
|
let (archive_filename, archive_snapshot_hash) =
|
|
wait_for_next_snapshot(&cluster, snapshot_archives_dir);
|
|
|
|
// Copy archive to validator's snapshot output directory
|
|
let validator_archive_path = snapshot_utils::build_full_snapshot_archive_path(
|
|
validator_snapshot_test_config
|
|
.snapshot_archives_dir
|
|
.path()
|
|
.to_path_buf(),
|
|
archive_snapshot_hash.0,
|
|
&archive_snapshot_hash.1,
|
|
ArchiveFormat::TarBzip2,
|
|
);
|
|
fs::hard_link(archive_filename, &validator_archive_path).unwrap();
|
|
|
|
// Restart validator from snapshot, the validator's tower state in this snapshot
|
|
// will contain slots < the root bank of the snapshot. Validator should not panic.
|
|
cluster.restart_node(&validator_id, validator_info, SocketAddrSpace::Unspecified);
|
|
|
|
// Test cluster can still make progress and get confirmations in tower
|
|
// Use the restarted node as the discovery point so that we get updated
|
|
// validator's ContactInfo
|
|
let restarted_node_info = cluster.get_contact_info(&validator_id).unwrap();
|
|
cluster_tests::spend_and_verify_all_nodes(
|
|
restarted_node_info,
|
|
&cluster.funding_keypair,
|
|
1,
|
|
HashSet::new(),
|
|
SocketAddrSpace::Unspecified,
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
#[serial]
|
|
fn test_snapshots_blockstore_floor() {
|
|
solana_logger::setup_with_default(RUST_LOG_FILTER);
|
|
// First set up the cluster with 1 snapshotting leader
|
|
let snapshot_interval_slots = 10;
|
|
let num_account_paths = 4;
|
|
|
|
let leader_snapshot_test_config =
|
|
setup_snapshot_validator_config(snapshot_interval_slots, num_account_paths);
|
|
let mut validator_snapshot_test_config =
|
|
setup_snapshot_validator_config(snapshot_interval_slots, num_account_paths);
|
|
|
|
let snapshot_archives_dir = &leader_snapshot_test_config
|
|
.validator_config
|
|
.snapshot_config
|
|
.as_ref()
|
|
.unwrap()
|
|
.snapshot_archives_dir;
|
|
|
|
let mut config = ClusterConfig {
|
|
node_stakes: vec![10000],
|
|
cluster_lamports: 100_000,
|
|
validator_configs: make_identical_validator_configs(
|
|
&leader_snapshot_test_config.validator_config,
|
|
1,
|
|
),
|
|
..ClusterConfig::default()
|
|
};
|
|
|
|
let mut cluster = LocalCluster::new(&mut config, SocketAddrSpace::Unspecified);
|
|
|
|
trace!("Waiting for snapshot tar to be generated with slot",);
|
|
|
|
let archive_info = loop {
|
|
let archive =
|
|
snapshot_utils::get_highest_full_snapshot_archive_info(&snapshot_archives_dir);
|
|
if archive.is_some() {
|
|
trace!("snapshot exists");
|
|
break archive.unwrap();
|
|
}
|
|
sleep(Duration::from_millis(5000));
|
|
};
|
|
|
|
// Copy archive to validator's snapshot output directory
|
|
let validator_archive_path = snapshot_utils::build_full_snapshot_archive_path(
|
|
validator_snapshot_test_config
|
|
.snapshot_archives_dir
|
|
.path()
|
|
.to_path_buf(),
|
|
archive_info.slot(),
|
|
archive_info.hash(),
|
|
ArchiveFormat::TarBzip2,
|
|
);
|
|
fs::hard_link(archive_info.path(), &validator_archive_path).unwrap();
|
|
let slot_floor = archive_info.slot();
|
|
|
|
// Start up a new node from a snapshot
|
|
let validator_stake = 5;
|
|
|
|
let cluster_nodes = discover_cluster(
|
|
&cluster.entry_point_info.gossip,
|
|
1,
|
|
SocketAddrSpace::Unspecified,
|
|
)
|
|
.unwrap();
|
|
let mut trusted_validators = HashSet::new();
|
|
trusted_validators.insert(cluster_nodes[0].id);
|
|
validator_snapshot_test_config
|
|
.validator_config
|
|
.trusted_validators = Some(trusted_validators);
|
|
|
|
cluster.add_validator(
|
|
&validator_snapshot_test_config.validator_config,
|
|
validator_stake,
|
|
Arc::new(Keypair::new()),
|
|
None,
|
|
SocketAddrSpace::Unspecified,
|
|
);
|
|
let all_pubkeys = cluster.get_node_pubkeys();
|
|
let validator_id = all_pubkeys
|
|
.into_iter()
|
|
.find(|x| *x != cluster.entry_point_info.id)
|
|
.unwrap();
|
|
let validator_client = cluster.get_validator_client(&validator_id).unwrap();
|
|
let mut current_slot = 0;
|
|
|
|
// Let this validator run a while with repair
|
|
let target_slot = slot_floor + 40;
|
|
while current_slot <= target_slot {
|
|
trace!("current_slot: {}", current_slot);
|
|
if let Ok(slot) = validator_client.get_slot_with_commitment(CommitmentConfig::processed()) {
|
|
current_slot = slot;
|
|
} else {
|
|
continue;
|
|
}
|
|
sleep(Duration::from_secs(1));
|
|
}
|
|
|
|
// Check the validator ledger doesn't contain any slots < slot_floor
|
|
cluster.close_preserve_ledgers();
|
|
let validator_ledger_path = &cluster.validators[&validator_id];
|
|
let blockstore = Blockstore::open(&validator_ledger_path.info.ledger_path).unwrap();
|
|
|
|
// Skip the zeroth slot in blockstore that the ledger is initialized with
|
|
let (first_slot, _) = blockstore.slot_meta_iterator(1).unwrap().next().unwrap();
|
|
|
|
assert_eq!(first_slot, slot_floor);
|
|
}
|
|
|
|
#[test]
|
|
#[serial]
|
|
fn test_snapshots_restart_validity() {
|
|
solana_logger::setup_with_default(RUST_LOG_FILTER);
|
|
let snapshot_interval_slots = 10;
|
|
let num_account_paths = 1;
|
|
let mut snapshot_test_config =
|
|
setup_snapshot_validator_config(snapshot_interval_slots, num_account_paths);
|
|
let snapshot_archives_dir = &snapshot_test_config
|
|
.validator_config
|
|
.snapshot_config
|
|
.as_ref()
|
|
.unwrap()
|
|
.snapshot_archives_dir;
|
|
|
|
// Set up the cluster with 1 snapshotting validator
|
|
let mut all_account_storage_dirs = vec![vec![]];
|
|
|
|
std::mem::swap(
|
|
&mut all_account_storage_dirs[0],
|
|
&mut snapshot_test_config.account_storage_dirs,
|
|
);
|
|
|
|
let mut config = ClusterConfig {
|
|
node_stakes: vec![10000],
|
|
cluster_lamports: 100_000,
|
|
validator_configs: make_identical_validator_configs(
|
|
&snapshot_test_config.validator_config,
|
|
1,
|
|
),
|
|
..ClusterConfig::default()
|
|
};
|
|
|
|
// Create and reboot the node from snapshot `num_runs` times
|
|
let num_runs = 3;
|
|
let mut expected_balances = HashMap::new();
|
|
let mut cluster = LocalCluster::new(&mut config, SocketAddrSpace::Unspecified);
|
|
for i in 1..num_runs {
|
|
info!("run {}", i);
|
|
// Push transactions to one of the nodes and confirm that transactions were
|
|
// forwarded to and processed.
|
|
trace!("Sending transactions");
|
|
let new_balances = cluster_tests::send_many_transactions(
|
|
&cluster.entry_point_info,
|
|
&cluster.funding_keypair,
|
|
10,
|
|
10,
|
|
);
|
|
|
|
expected_balances.extend(new_balances);
|
|
|
|
wait_for_next_snapshot(&cluster, snapshot_archives_dir);
|
|
|
|
// Create new account paths since validator exit is not guaranteed to cleanup RPC threads,
|
|
// which may delete the old accounts on exit at any point
|
|
let (new_account_storage_dirs, new_account_storage_paths) =
|
|
generate_account_paths(num_account_paths);
|
|
all_account_storage_dirs.push(new_account_storage_dirs);
|
|
snapshot_test_config.validator_config.account_paths = new_account_storage_paths;
|
|
|
|
// Restart node
|
|
trace!("Restarting cluster from snapshot");
|
|
let nodes = cluster.get_node_pubkeys();
|
|
cluster.exit_restart_node(
|
|
&nodes[0],
|
|
safe_clone_config(&snapshot_test_config.validator_config),
|
|
SocketAddrSpace::Unspecified,
|
|
);
|
|
|
|
// Verify account balances on validator
|
|
trace!("Verifying balances");
|
|
cluster_tests::verify_balances(expected_balances.clone(), &cluster.entry_point_info);
|
|
|
|
// Check that we can still push transactions
|
|
trace!("Spending and verifying");
|
|
cluster_tests::spend_and_verify_all_nodes(
|
|
&cluster.entry_point_info,
|
|
&cluster.funding_keypair,
|
|
1,
|
|
HashSet::new(),
|
|
SocketAddrSpace::Unspecified,
|
|
);
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
#[serial]
|
|
#[allow(unused_attributes)]
|
|
#[ignore]
|
|
fn test_fail_entry_verification_leader() {
|
|
let leader_stake = (DUPLICATE_THRESHOLD * 100.0) as u64 + 1;
|
|
let validator_stake1 = (100 - leader_stake) / 2;
|
|
let validator_stake2 = 100 - leader_stake - validator_stake1;
|
|
let (cluster, _) = test_faulty_node(
|
|
BroadcastStageType::FailEntryVerification,
|
|
vec![leader_stake, validator_stake1, validator_stake2],
|
|
);
|
|
cluster.check_for_new_roots(
|
|
16,
|
|
"test_fail_entry_verification_leader",
|
|
SocketAddrSpace::Unspecified,
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
#[serial]
|
|
#[ignore]
|
|
#[allow(unused_attributes)]
|
|
fn test_fake_shreds_broadcast_leader() {
|
|
let node_stakes = vec![300, 100];
|
|
let (cluster, _) = test_faulty_node(BroadcastStageType::BroadcastFakeShreds, node_stakes);
|
|
cluster.check_for_new_roots(
|
|
16,
|
|
"test_fake_shreds_broadcast_leader",
|
|
SocketAddrSpace::Unspecified,
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
#[serial]
|
|
#[ignore]
|
|
#[allow(unused_attributes)]
|
|
fn test_duplicate_shreds_broadcast_leader() {
|
|
// Create 4 nodes:
|
|
// 1) Bad leader sending different versions of shreds to both of the other nodes
|
|
// 2) 1 node who's voting behavior in gossip
|
|
// 3) 1 validator gets the same version as the leader, will see duplicate confirmation
|
|
// 4) 1 validator will not get the same version as the leader. For each of these
|
|
// duplicate slots `S` either:
|
|
// a) The leader's version of `S` gets > DUPLICATE_THRESHOLD of votes in gossip and so this
|
|
// node will repair that correct version
|
|
// b) A descendant `D` of some version of `S` gets > DUPLICATE_THRESHOLD votes in gossip,
|
|
// but no version of `S` does. Then the node will not know to repair the right version
|
|
// by just looking at gossip, but will instead have to use EpochSlots repair after
|
|
// detecting that a descendant does not chain to its version of `S`, and marks that descendant
|
|
// dead.
|
|
// Scenarios a) or b) are triggered by our node in 2) who's voting behavior we control.
|
|
|
|
// Critical that bad_leader_stake + good_node_stake < DUPLICATE_THRESHOLD and that
|
|
// bad_leader_stake + good_node_stake + our_node_stake > DUPLICATE_THRESHOLD so that
|
|
// our vote is the determining factor
|
|
let bad_leader_stake = 10000000000;
|
|
// Ensure that the good_node_stake is always on the critical path, and the partition node
|
|
// should never be on the critical path. This way, none of the bad shreds sent to the partition
|
|
// node corrupt the good node.
|
|
let good_node_stake = 500000;
|
|
let our_node_stake = 10000000000;
|
|
let partition_node_stake = 1;
|
|
|
|
let node_stakes = vec![
|
|
bad_leader_stake,
|
|
partition_node_stake,
|
|
good_node_stake,
|
|
// Needs to be last in the vector, so that we can
|
|
// find the id of this node. See call to `test_faulty_node`
|
|
// below for more details.
|
|
our_node_stake,
|
|
];
|
|
assert_eq!(*node_stakes.last().unwrap(), our_node_stake);
|
|
let total_stake: u64 = node_stakes.iter().sum();
|
|
|
|
assert!(
|
|
((bad_leader_stake + good_node_stake) as f64 / total_stake as f64) < DUPLICATE_THRESHOLD
|
|
);
|
|
assert!(
|
|
(bad_leader_stake + good_node_stake + our_node_stake) as f64 / total_stake as f64
|
|
> DUPLICATE_THRESHOLD
|
|
);
|
|
|
|
// Important that the partition node stake is the smallest so that it gets selected
|
|
// for the partition.
|
|
assert!(partition_node_stake < our_node_stake && partition_node_stake < good_node_stake);
|
|
|
|
// 1) Set up the cluster
|
|
let (mut cluster, validator_keys) = test_faulty_node(
|
|
BroadcastStageType::BroadcastDuplicates(BroadcastDuplicatesConfig {
|
|
stake_partition: partition_node_stake,
|
|
}),
|
|
node_stakes,
|
|
);
|
|
|
|
// This is why it's important our node was last in `node_stakes`
|
|
let our_id = validator_keys.last().unwrap().pubkey();
|
|
|
|
// 2) Kill our node and start up a thread to simulate votes to control our voting behavior
|
|
let our_info = cluster.exit_node(&our_id);
|
|
let node_keypair = our_info.info.keypair;
|
|
let vote_keypair = our_info.info.voting_keypair;
|
|
let bad_leader_id = cluster.entry_point_info.id;
|
|
let bad_leader_ledger_path = cluster.validators[&bad_leader_id].info.ledger_path.clone();
|
|
info!("our node id: {}", node_keypair.pubkey());
|
|
|
|
// 3) Start up a spy to listen for votes
|
|
let exit = Arc::new(AtomicBool::new(false));
|
|
let (gossip_service, _tcp_listener, cluster_info) = gossip_service::make_gossip_node(
|
|
// Need to use our validator's keypair to gossip EpochSlots and votes for our
|
|
// node later.
|
|
Keypair::from_bytes(&node_keypair.to_bytes()).unwrap(),
|
|
Some(&cluster.entry_point_info.gossip),
|
|
&exit,
|
|
None,
|
|
0,
|
|
false,
|
|
SocketAddrSpace::Unspecified,
|
|
);
|
|
|
|
let t_voter = {
|
|
let exit = exit.clone();
|
|
std::thread::spawn(move || {
|
|
let mut cursor = Cursor::default();
|
|
let mut max_vote_slot = 0;
|
|
let mut gossip_vote_index = 0;
|
|
loop {
|
|
if exit.load(Ordering::Relaxed) {
|
|
return;
|
|
}
|
|
|
|
let (labels, votes) = cluster_info.get_votes(&mut cursor);
|
|
let mut parsed_vote_iter: Vec<_> = labels
|
|
.into_iter()
|
|
.zip(votes.into_iter())
|
|
.filter_map(|(label, leader_vote_tx)| {
|
|
// Filter out votes not from the bad leader
|
|
if label.pubkey() == bad_leader_id {
|
|
let vote = vote_transaction::parse_vote_transaction(&leader_vote_tx)
|
|
.map(|(_, vote, _)| vote)
|
|
.unwrap();
|
|
// Filter out empty votes
|
|
if !vote.slots.is_empty() {
|
|
Some((vote, leader_vote_tx))
|
|
} else {
|
|
None
|
|
}
|
|
} else {
|
|
None
|
|
}
|
|
})
|
|
.collect();
|
|
|
|
parsed_vote_iter.sort_by(|(vote, _), (vote2, _)| {
|
|
vote.slots.last().unwrap().cmp(vote2.slots.last().unwrap())
|
|
});
|
|
|
|
for (parsed_vote, leader_vote_tx) in parsed_vote_iter {
|
|
if let Some(latest_vote_slot) = parsed_vote.slots.last() {
|
|
info!("received vote for {}", latest_vote_slot);
|
|
// Add to EpochSlots. Mark all slots frozen between slot..=max_vote_slot.
|
|
if *latest_vote_slot > max_vote_slot {
|
|
let new_epoch_slots: Vec<Slot> =
|
|
(max_vote_slot + 1..latest_vote_slot + 1).collect();
|
|
info!(
|
|
"Simulating epoch slots from our node: {:?}",
|
|
new_epoch_slots
|
|
);
|
|
cluster_info.push_epoch_slots(&new_epoch_slots);
|
|
max_vote_slot = *latest_vote_slot;
|
|
}
|
|
|
|
// Only vote on even slots. Note this may violate lockouts if the
|
|
// validator started voting on a different fork before we could exit
|
|
// it above.
|
|
let vote_hash = parsed_vote.hash;
|
|
if latest_vote_slot % 2 == 0 {
|
|
info!(
|
|
"Simulating vote from our node on slot {}, hash {}",
|
|
latest_vote_slot, vote_hash
|
|
);
|
|
|
|
// Add all recent vote slots on this fork to allow cluster to pass
|
|
// vote threshold checks in replay. Note this will instantly force a
|
|
// root by this validator, but we're not concerned with lockout violations
|
|
// by this validator so it's fine.
|
|
let leader_blockstore = open_blockstore(&bad_leader_ledger_path);
|
|
let mut vote_slots: Vec<Slot> = AncestorIterator::new_inclusive(
|
|
*latest_vote_slot,
|
|
&leader_blockstore,
|
|
)
|
|
.take(MAX_LOCKOUT_HISTORY)
|
|
.collect();
|
|
vote_slots.reverse();
|
|
let vote_tx = vote_transaction::new_vote_transaction(
|
|
vote_slots,
|
|
vote_hash,
|
|
leader_vote_tx.message.recent_blockhash,
|
|
&node_keypair,
|
|
&vote_keypair,
|
|
&vote_keypair,
|
|
None,
|
|
);
|
|
gossip_vote_index += 1;
|
|
gossip_vote_index %= MAX_LOCKOUT_HISTORY;
|
|
cluster_info.push_vote_at_index(vote_tx, gossip_vote_index as u8)
|
|
}
|
|
}
|
|
// Give vote some time to propagate
|
|
sleep(Duration::from_millis(100));
|
|
}
|
|
}
|
|
})
|
|
};
|
|
|
|
// 4) Check that the cluster is making progress
|
|
cluster.check_for_new_roots(
|
|
16,
|
|
"test_duplicate_shreds_broadcast_leader",
|
|
SocketAddrSpace::Unspecified,
|
|
);
|
|
|
|
// Clean up threads
|
|
exit.store(true, Ordering::Relaxed);
|
|
t_voter.join().unwrap();
|
|
gossip_service.join().unwrap();
|
|
}
|
|
|
|
fn test_faulty_node(
|
|
faulty_node_type: BroadcastStageType,
|
|
node_stakes: Vec<u64>,
|
|
) -> (LocalCluster, Vec<Arc<Keypair>>) {
|
|
solana_logger::setup_with_default("solana_local_cluster=info");
|
|
let num_nodes = node_stakes.len();
|
|
|
|
let error_validator_config = ValidatorConfig {
|
|
broadcast_stage_type: faulty_node_type,
|
|
..ValidatorConfig::default()
|
|
};
|
|
let mut validator_configs = Vec::with_capacity(num_nodes);
|
|
|
|
// First validator is the bootstrap leader with the malicious broadcast logic.
|
|
validator_configs.push(error_validator_config);
|
|
validator_configs.resize_with(num_nodes, ValidatorConfig::default);
|
|
|
|
let mut validator_keys = Vec::with_capacity(num_nodes);
|
|
validator_keys.resize_with(num_nodes, || (Arc::new(Keypair::new()), true));
|
|
|
|
assert_eq!(node_stakes.len(), num_nodes);
|
|
assert_eq!(validator_keys.len(), num_nodes);
|
|
|
|
let mut cluster_config = ClusterConfig {
|
|
cluster_lamports: 10_000,
|
|
node_stakes,
|
|
validator_configs,
|
|
validator_keys: Some(validator_keys.clone()),
|
|
skip_warmup_slots: true,
|
|
..ClusterConfig::default()
|
|
};
|
|
|
|
let cluster = LocalCluster::new(&mut cluster_config, SocketAddrSpace::Unspecified);
|
|
let validator_keys: Vec<Arc<Keypair>> = validator_keys
|
|
.into_iter()
|
|
.map(|(keypair, _)| keypair)
|
|
.collect();
|
|
|
|
(cluster, validator_keys)
|
|
}
|
|
|
|
#[test]
|
|
fn test_wait_for_max_stake() {
|
|
solana_logger::setup_with_default(RUST_LOG_FILTER);
|
|
let validator_config = ValidatorConfig::default();
|
|
let mut config = ClusterConfig {
|
|
cluster_lamports: 10_000,
|
|
node_stakes: vec![100; 4],
|
|
validator_configs: make_identical_validator_configs(&validator_config, 4),
|
|
..ClusterConfig::default()
|
|
};
|
|
let cluster = LocalCluster::new(&mut config, SocketAddrSpace::Unspecified);
|
|
let client = RpcClient::new_socket(cluster.entry_point_info.rpc);
|
|
|
|
assert!(client
|
|
.wait_for_max_stake(CommitmentConfig::default(), 33.0f32)
|
|
.is_ok());
|
|
assert!(client.get_slot().unwrap() > 10);
|
|
}
|
|
|
|
#[test]
|
|
// Test that when a leader is leader for banks B_i..B_{i+n}, and B_i is not
|
|
// votable, then B_{i+1} still chains to B_i
|
|
fn test_no_voting() {
|
|
solana_logger::setup_with_default(RUST_LOG_FILTER);
|
|
let validator_config = ValidatorConfig {
|
|
voting_disabled: true,
|
|
..ValidatorConfig::default()
|
|
};
|
|
let mut config = ClusterConfig {
|
|
cluster_lamports: 10_000,
|
|
node_stakes: vec![100],
|
|
validator_configs: vec![validator_config],
|
|
..ClusterConfig::default()
|
|
};
|
|
let mut cluster = LocalCluster::new(&mut config, SocketAddrSpace::Unspecified);
|
|
let client = cluster
|
|
.get_validator_client(&cluster.entry_point_info.id)
|
|
.unwrap();
|
|
loop {
|
|
let last_slot = client
|
|
.get_slot_with_commitment(CommitmentConfig::processed())
|
|
.expect("Couldn't get slot");
|
|
if last_slot > 4 * VOTE_THRESHOLD_DEPTH as u64 {
|
|
break;
|
|
}
|
|
sleep(Duration::from_secs(1));
|
|
}
|
|
|
|
cluster.close_preserve_ledgers();
|
|
let leader_pubkey = cluster.entry_point_info.id;
|
|
let ledger_path = cluster.validators[&leader_pubkey].info.ledger_path.clone();
|
|
let ledger = Blockstore::open(&ledger_path).unwrap();
|
|
for i in 0..2 * VOTE_THRESHOLD_DEPTH {
|
|
let meta = ledger.meta(i as u64).unwrap().unwrap();
|
|
let parent = meta.parent_slot;
|
|
let expected_parent = i.saturating_sub(1);
|
|
assert_eq!(parent, expected_parent as u64);
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
#[serial]
|
|
fn test_optimistic_confirmation_violation_detection() {
|
|
solana_logger::setup_with_default(RUST_LOG_FILTER);
|
|
// First set up the cluster with 2 nodes
|
|
let slots_per_epoch = 2048;
|
|
let node_stakes = vec![51, 50];
|
|
let validator_keys: Vec<_> = vec![
|
|
"4qhhXNTbKD1a5vxDDLZcHKj7ELNeiivtUBxn3wUK1F5VRsQVP89VUhfXqSfgiFB14GfuBgtrQ96n9NvWQADVkcCg",
|
|
"3kHBzVwie5vTEaY6nFCPeFT8qDpoXzn7dCEioGRNBTnUDpvwnG85w8Wq63gVWpVTP8k2a8cgcWRjSXyUkEygpXWS",
|
|
]
|
|
.iter()
|
|
.map(|s| (Arc::new(Keypair::from_base58_string(s)), true))
|
|
.take(node_stakes.len())
|
|
.collect();
|
|
let mut config = ClusterConfig {
|
|
cluster_lamports: 100_000,
|
|
node_stakes: node_stakes.clone(),
|
|
validator_configs: make_identical_validator_configs(
|
|
&ValidatorConfig::default(),
|
|
node_stakes.len(),
|
|
),
|
|
validator_keys: Some(validator_keys),
|
|
slots_per_epoch,
|
|
stakers_slot_offset: slots_per_epoch,
|
|
skip_warmup_slots: true,
|
|
..ClusterConfig::default()
|
|
};
|
|
let mut cluster = LocalCluster::new(&mut config, SocketAddrSpace::Unspecified);
|
|
let entry_point_id = cluster.entry_point_info.id;
|
|
// Let the nodes run for a while. Wait for validators to vote on slot `S`
|
|
// so that the vote on `S-1` is definitely in gossip and optimistic confirmation is
|
|
// detected on slot `S-1` for sure, then stop the heavier of the two
|
|
// validators
|
|
let client = cluster.get_validator_client(&entry_point_id).unwrap();
|
|
let mut prev_voted_slot = 0;
|
|
loop {
|
|
let last_voted_slot = client
|
|
.get_slot_with_commitment(CommitmentConfig::processed())
|
|
.unwrap();
|
|
if last_voted_slot > 50 {
|
|
if prev_voted_slot == 0 {
|
|
prev_voted_slot = last_voted_slot;
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
sleep(Duration::from_millis(100));
|
|
}
|
|
|
|
let exited_validator_info = cluster.exit_node(&entry_point_id);
|
|
|
|
// Mark fork as dead on the heavier validator, this should make the fork effectively
|
|
// dead, even though it was optimistically confirmed. The smaller validator should
|
|
// create and jump over to a new fork
|
|
// Also, remove saved tower to intentionally make the restarted validator to violate the
|
|
// optimistic confirmation
|
|
{
|
|
let blockstore = open_blockstore(&exited_validator_info.info.ledger_path);
|
|
info!(
|
|
"Setting slot: {} on main fork as dead, should cause fork",
|
|
prev_voted_slot
|
|
);
|
|
// Necessary otherwise tower will inform this validator that it's latest
|
|
// vote is on slot `prev_voted_slot`. This will then prevent this validator
|
|
// from resetting to the parent of `prev_voted_slot` to create an alternative fork because
|
|
// 1) Validator can't vote on earlier ancestor of last vote due to switch threshold (can't vote
|
|
// on ancestors of last vote)
|
|
// 2) Won't reset to this earlier ancestor becasue reset can only happen on same voted fork if
|
|
// it's for the last vote slot or later
|
|
remove_tower(&exited_validator_info.info.ledger_path, &entry_point_id);
|
|
blockstore.set_dead_slot(prev_voted_slot).unwrap();
|
|
}
|
|
|
|
{
|
|
// Buffer stderr to detect optimistic slot violation log
|
|
let buf = std::env::var("OPTIMISTIC_CONF_TEST_DUMP_LOG")
|
|
.err()
|
|
.map(|_| BufferRedirect::stderr().unwrap());
|
|
cluster.restart_node(
|
|
&entry_point_id,
|
|
exited_validator_info,
|
|
SocketAddrSpace::Unspecified,
|
|
);
|
|
|
|
// Wait for a root > prev_voted_slot to be set. Because the root is on a
|
|
// different fork than `prev_voted_slot`, then optimistic confirmation is
|
|
// violated
|
|
let client = cluster.get_validator_client(&entry_point_id).unwrap();
|
|
loop {
|
|
let last_root = client
|
|
.get_slot_with_commitment(CommitmentConfig::finalized())
|
|
.unwrap();
|
|
if last_root > prev_voted_slot {
|
|
break;
|
|
}
|
|
sleep(Duration::from_millis(100));
|
|
}
|
|
|
|
// Check to see that validator detected optimistic confirmation for
|
|
// `prev_voted_slot` failed
|
|
let expected_log =
|
|
OptimisticConfirmationVerifier::format_optimistic_confirmed_slot_violation_log(
|
|
prev_voted_slot,
|
|
);
|
|
// Violation detection thread can be behind so poll logs up to 10 seconds
|
|
if let Some(mut buf) = buf {
|
|
let start = Instant::now();
|
|
let mut success = false;
|
|
let mut output = String::new();
|
|
while start.elapsed().as_secs() < 10 {
|
|
buf.read_to_string(&mut output).unwrap();
|
|
if output.contains(&expected_log) {
|
|
success = true;
|
|
break;
|
|
}
|
|
sleep(Duration::from_millis(10));
|
|
}
|
|
print!("{}", output);
|
|
assert!(success);
|
|
} else {
|
|
panic!("dumped log and disabled testing");
|
|
}
|
|
}
|
|
|
|
// Make sure validator still makes progress
|
|
cluster_tests::check_for_new_roots(
|
|
16,
|
|
&[cluster.get_contact_info(&entry_point_id).unwrap().clone()],
|
|
"test_optimistic_confirmation_violation",
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
#[serial]
|
|
fn test_validator_saves_tower() {
|
|
solana_logger::setup_with_default(RUST_LOG_FILTER);
|
|
|
|
let validator_config = ValidatorConfig {
|
|
require_tower: true,
|
|
..ValidatorConfig::default()
|
|
};
|
|
let validator_identity_keypair = Arc::new(Keypair::new());
|
|
let validator_id = validator_identity_keypair.pubkey();
|
|
let mut config = ClusterConfig {
|
|
cluster_lamports: 10_000,
|
|
node_stakes: vec![100],
|
|
validator_configs: vec![validator_config],
|
|
validator_keys: Some(vec![(validator_identity_keypair.clone(), true)]),
|
|
..ClusterConfig::default()
|
|
};
|
|
let mut cluster = LocalCluster::new(&mut config, SocketAddrSpace::Unspecified);
|
|
|
|
let validator_client = cluster.get_validator_client(&validator_id).unwrap();
|
|
|
|
let ledger_path = cluster
|
|
.validators
|
|
.get(&validator_id)
|
|
.unwrap()
|
|
.info
|
|
.ledger_path
|
|
.clone();
|
|
|
|
let file_tower_storage = FileTowerStorage::new(ledger_path.clone());
|
|
|
|
// Wait for some votes to be generated
|
|
let mut last_replayed_root;
|
|
loop {
|
|
if let Ok(slot) = validator_client.get_slot_with_commitment(CommitmentConfig::processed()) {
|
|
trace!("current slot: {}", slot);
|
|
if slot > 2 {
|
|
// this will be the root next time a validator starts
|
|
last_replayed_root = slot;
|
|
break;
|
|
}
|
|
}
|
|
sleep(Duration::from_millis(10));
|
|
}
|
|
|
|
// Stop validator and check saved tower
|
|
let validator_info = cluster.exit_node(&validator_id);
|
|
let tower1 = Tower::restore(&file_tower_storage, &validator_id).unwrap();
|
|
trace!("tower1: {:?}", tower1);
|
|
assert_eq!(tower1.root(), 0);
|
|
|
|
// Restart the validator and wait for a new root
|
|
cluster.restart_node(&validator_id, validator_info, SocketAddrSpace::Unspecified);
|
|
let validator_client = cluster.get_validator_client(&validator_id).unwrap();
|
|
|
|
// Wait for the first root
|
|
loop {
|
|
#[allow(deprecated)]
|
|
// This test depends on knowing the immediate root, without any delay from the commitment
|
|
// service, so the deprecated CommitmentConfig::root() is retained
|
|
if let Ok(root) = validator_client.get_slot_with_commitment(CommitmentConfig::root()) {
|
|
trace!("current root: {}", root);
|
|
if root > last_replayed_root + 1 {
|
|
last_replayed_root = root;
|
|
break;
|
|
}
|
|
}
|
|
sleep(Duration::from_millis(50));
|
|
}
|
|
|
|
// Stop validator, and check saved tower
|
|
let recent_slot = validator_client
|
|
.get_slot_with_commitment(CommitmentConfig::processed())
|
|
.unwrap();
|
|
let validator_info = cluster.exit_node(&validator_id);
|
|
let tower2 = Tower::restore(&file_tower_storage, &validator_id).unwrap();
|
|
trace!("tower2: {:?}", tower2);
|
|
assert_eq!(tower2.root(), last_replayed_root);
|
|
last_replayed_root = recent_slot;
|
|
|
|
// Rollback saved tower to `tower1` to simulate a validator starting from a newer snapshot
|
|
// without having to wait for that snapshot to be generated in this test
|
|
tower1
|
|
.save(&file_tower_storage, &validator_identity_keypair)
|
|
.unwrap();
|
|
|
|
cluster.restart_node(&validator_id, validator_info, SocketAddrSpace::Unspecified);
|
|
let validator_client = cluster.get_validator_client(&validator_id).unwrap();
|
|
|
|
// Wait for a new root, demonstrating the validator was able to make progress from the older `tower1`
|
|
loop {
|
|
#[allow(deprecated)]
|
|
// This test depends on knowing the immediate root, without any delay from the commitment
|
|
// service, so the deprecated CommitmentConfig::root() is retained
|
|
if let Ok(root) = validator_client.get_slot_with_commitment(CommitmentConfig::root()) {
|
|
trace!(
|
|
"current root: {}, last_replayed_root: {}",
|
|
root,
|
|
last_replayed_root
|
|
);
|
|
if root > last_replayed_root {
|
|
break;
|
|
}
|
|
}
|
|
sleep(Duration::from_millis(50));
|
|
}
|
|
|
|
// Check the new root is reflected in the saved tower state
|
|
let mut validator_info = cluster.exit_node(&validator_id);
|
|
let tower3 = Tower::restore(&file_tower_storage, &validator_id).unwrap();
|
|
trace!("tower3: {:?}", tower3);
|
|
assert!(tower3.root() > last_replayed_root);
|
|
|
|
// Remove the tower file entirely and allow the validator to start without a tower. It will
|
|
// rebuild tower from its vote account contents
|
|
remove_tower(&ledger_path, &validator_id);
|
|
validator_info.config.require_tower = false;
|
|
|
|
cluster.restart_node(&validator_id, validator_info, SocketAddrSpace::Unspecified);
|
|
let validator_client = cluster.get_validator_client(&validator_id).unwrap();
|
|
|
|
// Wait for a couple more slots to pass so another vote occurs
|
|
let current_slot = validator_client
|
|
.get_slot_with_commitment(CommitmentConfig::processed())
|
|
.unwrap();
|
|
loop {
|
|
if let Ok(slot) = validator_client.get_slot_with_commitment(CommitmentConfig::processed()) {
|
|
trace!("current_slot: {}, slot: {}", current_slot, slot);
|
|
if slot > current_slot + 1 {
|
|
break;
|
|
}
|
|
}
|
|
sleep(Duration::from_millis(50));
|
|
}
|
|
|
|
cluster.close_preserve_ledgers();
|
|
|
|
let tower4 = Tower::restore(&file_tower_storage, &validator_id).unwrap();
|
|
trace!("tower4: {:?}", tower4);
|
|
// should tower4 advance 1 slot compared to tower3????
|
|
assert_eq!(tower4.root(), tower3.root() + 1);
|
|
}
|
|
|
|
fn open_blockstore(ledger_path: &Path) -> Blockstore {
|
|
Blockstore::open_with_access_type(ledger_path, AccessType::TryPrimaryThenSecondary, None, true)
|
|
.unwrap_or_else(|e| {
|
|
panic!("Failed to open ledger at {:?}, err: {}", ledger_path, e);
|
|
})
|
|
}
|
|
|
|
fn purge_slots(blockstore: &Blockstore, start_slot: Slot, slot_count: Slot) {
|
|
blockstore.purge_from_next_slots(start_slot, start_slot + slot_count);
|
|
blockstore.purge_slots(start_slot, start_slot + slot_count, PurgeType::Exact);
|
|
}
|
|
|
|
fn copy_blocks(end_slot: Slot, source: &Blockstore, dest: &Blockstore) {
|
|
for slot in std::iter::once(end_slot).chain(AncestorIterator::new(end_slot, source)) {
|
|
let source_meta = source.meta(slot).unwrap().unwrap();
|
|
assert!(source_meta.is_full());
|
|
|
|
let shreds = source.get_data_shreds_for_slot(slot, 0).unwrap();
|
|
dest.insert_shreds(shreds, None, false).unwrap();
|
|
|
|
let dest_meta = dest.meta(slot).unwrap().unwrap();
|
|
assert!(dest_meta.is_full());
|
|
assert_eq!(dest_meta.last_index, source_meta.last_index);
|
|
}
|
|
}
|
|
|
|
fn restore_tower(tower_path: &Path, node_pubkey: &Pubkey) -> Option<Tower> {
|
|
let file_tower_storage = FileTowerStorage::new(tower_path.to_path_buf());
|
|
|
|
let tower = Tower::restore(&file_tower_storage, node_pubkey);
|
|
if let Err(tower_err) = tower {
|
|
if tower_err.is_file_missing() {
|
|
return None;
|
|
} else {
|
|
panic!("tower restore failed...: {:?}", tower_err);
|
|
}
|
|
}
|
|
// actually saved tower must have at least one vote.
|
|
Tower::restore(&file_tower_storage, node_pubkey).ok()
|
|
}
|
|
|
|
fn last_vote_in_tower(tower_path: &Path, node_pubkey: &Pubkey) -> Option<(Slot, Hash)> {
|
|
restore_tower(tower_path, node_pubkey).map(|tower| tower.last_voted_slot_hash().unwrap())
|
|
}
|
|
|
|
// Fetches the last vote in the tower, blocking until it has also appeared in blockstore.
|
|
// Fails if tower is empty
|
|
fn wait_for_last_vote_in_tower_to_land_in_ledger(ledger_path: &Path, node_pubkey: &Pubkey) -> Slot {
|
|
let (last_vote, _) = last_vote_in_tower(ledger_path, node_pubkey).unwrap();
|
|
loop {
|
|
// We reopen in a loop to make sure we get updates
|
|
let blockstore = open_blockstore(ledger_path);
|
|
if blockstore.is_full(last_vote) {
|
|
break;
|
|
}
|
|
sleep(Duration::from_millis(100));
|
|
}
|
|
last_vote
|
|
}
|
|
|
|
fn root_in_tower(tower_path: &Path, node_pubkey: &Pubkey) -> Option<Slot> {
|
|
restore_tower(tower_path, node_pubkey).map(|tower| tower.root())
|
|
}
|
|
|
|
fn remove_tower(tower_path: &Path, node_pubkey: &Pubkey) {
|
|
let file_tower_storage = FileTowerStorage::new(tower_path.to_path_buf());
|
|
fs::remove_file(file_tower_storage.filename(node_pubkey)).unwrap();
|
|
}
|
|
|
|
// A bit convoluted test case; but this roughly follows this test theoretical scenario:
|
|
//
|
|
// Step 1: You have validator A + B with 31% and 36% of the stake. Run only validator B:
|
|
//
|
|
// S0 -> S1 -> S2 -> S3 (B vote)
|
|
//
|
|
// Step 2: Turn off B, and truncate the ledger after slot `S3` (simulate votes not
|
|
// landing in next slot).
|
|
// Copy ledger fully to validator A and validator C
|
|
//
|
|
// Step 3: Turn on A, and have it vote up to S3. Truncate anything past slot `S3`.
|
|
//
|
|
// S0 -> S1 -> S2 -> S3 (A & B vote, optimistically confirmed)
|
|
//
|
|
// Step 4:
|
|
// Start validator C with 33% of the stake with same ledger, but only up to slot S2.
|
|
// Have `C` generate some blocks like:
|
|
//
|
|
// S0 -> S1 -> S2 -> S4
|
|
//
|
|
// Step 3: Then restart `A` which had 31% of the stake. With the tower, from `A`'s
|
|
// perspective it sees:
|
|
//
|
|
// S0 -> S1 -> S2 -> S3 (voted)
|
|
// |
|
|
// -> S4 -> S5 (C's vote for S4)
|
|
//
|
|
// The fork choice rule weights look like:
|
|
//
|
|
// S0 -> S1 -> S2 (ABC) -> S3
|
|
// |
|
|
// -> S4 (C) -> S5
|
|
//
|
|
// Step 5:
|
|
// Without the persisted tower:
|
|
// `A` would choose to vote on the fork with `S4 -> S5`. This is true even if `A`
|
|
// generates a new fork starting at slot `S3` because `C` has more stake than `A`
|
|
// so `A` will eventually pick the fork `C` is on.
|
|
//
|
|
// Furthermore `B`'s vote on `S3` is not observable because there are no
|
|
// descendants of slot `S3`, so that fork will not be chosen over `C`'s fork
|
|
//
|
|
// With the persisted tower:
|
|
// `A` should not be able to generate a switching proof.
|
|
//
|
|
fn do_test_optimistic_confirmation_violation_with_or_without_tower(with_tower: bool) {
|
|
solana_logger::setup_with_default(RUST_LOG_FILTER);
|
|
|
|
// First set up the cluster with 4 nodes
|
|
let slots_per_epoch = 2048;
|
|
let node_stakes = vec![31, 36, 33, 0];
|
|
|
|
// Each pubkeys are prefixed with A, B, C and D.
|
|
// D is needed to:
|
|
// 1) Propagate A's votes for S2 to validator C after A shuts down so that
|
|
// C can avoid NoPropagatedConfirmation errors and continue to generate blocks
|
|
// 2) Provide gossip discovery for `A` when it restarts because `A` will restart
|
|
// at a different gossip port than the entrypoint saved in C's gossip table
|
|
let validator_keys = vec![
|
|
"28bN3xyvrP4E8LwEgtLjhnkb7cY4amQb6DrYAbAYjgRV4GAGgkVM2K7wnxnAS7WDneuavza7x21MiafLu1HkwQt4",
|
|
"2saHBBoTkLMmttmPQP8KfBkcCw45S5cwtV3wTdGCscRC8uxdgvHxpHiWXKx4LvJjNJtnNcbSv5NdheokFFqnNDt8",
|
|
"4mx9yoFBeYasDKBGDWCTWGJdWuJCKbgqmuP8bN9umybCh5Jzngw7KQxe99Rf5uzfyzgba1i65rJW4Wqk7Ab5S8ye",
|
|
"3zsEPEDsjfEay7te9XqNjRTCE7vwuT6u4DHzBJC19yp7GS8BuNRMRjnpVrKCBzb3d44kxc4KPGSHkCmk6tEfswCg",
|
|
]
|
|
.iter()
|
|
.map(|s| (Arc::new(Keypair::from_base58_string(s)), true))
|
|
.take(node_stakes.len())
|
|
.collect::<Vec<_>>();
|
|
let validators = validator_keys
|
|
.iter()
|
|
.map(|(kp, _)| kp.pubkey())
|
|
.collect::<Vec<_>>();
|
|
let (validator_a_pubkey, validator_b_pubkey, validator_c_pubkey) =
|
|
(validators[0], validators[1], validators[2]);
|
|
|
|
let mut config = ClusterConfig {
|
|
cluster_lamports: 100_000,
|
|
node_stakes: node_stakes.clone(),
|
|
validator_configs: make_identical_validator_configs(
|
|
&ValidatorConfig::default(),
|
|
node_stakes.len(),
|
|
),
|
|
validator_keys: Some(validator_keys),
|
|
slots_per_epoch,
|
|
stakers_slot_offset: slots_per_epoch,
|
|
skip_warmup_slots: true,
|
|
..ClusterConfig::default()
|
|
};
|
|
let mut cluster = LocalCluster::new(&mut config, SocketAddrSpace::Unspecified);
|
|
|
|
let base_slot = 26; // S2
|
|
let next_slot_on_a = 27; // S3
|
|
let truncated_slots = 100; // just enough to purge all following slots after the S2 and S3
|
|
|
|
let val_a_ledger_path = cluster.ledger_path(&validator_a_pubkey);
|
|
let val_b_ledger_path = cluster.ledger_path(&validator_b_pubkey);
|
|
let val_c_ledger_path = cluster.ledger_path(&validator_c_pubkey);
|
|
|
|
// Immediately kill validator A, and C
|
|
let validator_a_info = cluster.exit_node(&validator_a_pubkey);
|
|
let validator_c_info = cluster.exit_node(&validator_c_pubkey);
|
|
|
|
// Step 1:
|
|
// Let validator B, (D) run for a while.
|
|
let now = Instant::now();
|
|
loop {
|
|
let elapsed = now.elapsed();
|
|
if elapsed > Duration::from_secs(30) {
|
|
panic!(
|
|
"LocalCluster nodes failed to log enough tower votes in {} secs",
|
|
elapsed.as_secs()
|
|
);
|
|
}
|
|
sleep(Duration::from_millis(100));
|
|
|
|
if let Some((last_vote, _)) = last_vote_in_tower(&val_b_ledger_path, &validator_b_pubkey) {
|
|
if last_vote >= next_slot_on_a {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
// kill B
|
|
let _validator_b_info = cluster.exit_node(&validator_b_pubkey);
|
|
|
|
// Step 2:
|
|
// Stop validator and truncate ledger, copy over B's ledger to A
|
|
info!("truncate validator C's ledger");
|
|
{
|
|
// first copy from validator B's ledger
|
|
std::fs::remove_dir_all(&validator_c_info.info.ledger_path).unwrap();
|
|
let mut opt = fs_extra::dir::CopyOptions::new();
|
|
opt.copy_inside = true;
|
|
fs_extra::dir::copy(&val_b_ledger_path, &val_c_ledger_path, &opt).unwrap();
|
|
// Remove B's tower in the C's new copied ledger
|
|
remove_tower(&val_c_ledger_path, &validator_b_pubkey);
|
|
|
|
let blockstore = open_blockstore(&val_c_ledger_path);
|
|
purge_slots(&blockstore, base_slot + 1, truncated_slots);
|
|
}
|
|
info!("Create validator A's ledger");
|
|
{
|
|
// Find latest vote in B, and wait for it to reach blockstore
|
|
let b_last_vote =
|
|
wait_for_last_vote_in_tower_to_land_in_ledger(&val_b_ledger_path, &validator_b_pubkey);
|
|
|
|
// Now we copy these blocks to A
|
|
let b_blockstore = open_blockstore(&val_b_ledger_path);
|
|
let a_blockstore = open_blockstore(&val_a_ledger_path);
|
|
copy_blocks(b_last_vote, &b_blockstore, &a_blockstore);
|
|
|
|
// Purge uneccessary slots
|
|
purge_slots(&a_blockstore, next_slot_on_a + 1, truncated_slots);
|
|
}
|
|
|
|
// Step 3:
|
|
// Restart A so that it can vote for the slots in B's fork
|
|
info!("Restarting A");
|
|
cluster.restart_node(
|
|
&validator_a_pubkey,
|
|
validator_a_info,
|
|
SocketAddrSpace::Unspecified,
|
|
);
|
|
|
|
info!("Waiting for A to vote");
|
|
loop {
|
|
if let Some((last_vote_slot, _)) =
|
|
last_vote_in_tower(&val_a_ledger_path, &validator_a_pubkey)
|
|
{
|
|
if last_vote_slot >= next_slot_on_a {
|
|
info!("Validator A has caught up: {}", last_vote_slot);
|
|
break;
|
|
} else {
|
|
info!("Validator A latest vote: {}", last_vote_slot);
|
|
}
|
|
}
|
|
|
|
sleep(Duration::from_millis(20));
|
|
}
|
|
|
|
info!("Killing A");
|
|
let validator_a_info = cluster.exit_node(&validator_a_pubkey);
|
|
{
|
|
let blockstore = open_blockstore(&val_a_ledger_path);
|
|
purge_slots(&blockstore, next_slot_on_a + 1, truncated_slots);
|
|
if !with_tower {
|
|
info!("Removing tower!");
|
|
remove_tower(&val_a_ledger_path, &validator_a_pubkey);
|
|
|
|
// Remove next_slot_on_a from ledger to force validator A to select
|
|
// votes_on_c_fork. Otherwise the validator A will immediately vote
|
|
// for 27 on restart, because it hasn't gotten the heavier fork from
|
|
// validator C yet.
|
|
// Then it will be stuck on 27 unable to switch because C doesn't
|
|
// have enough stake to generate a switching proof
|
|
purge_slots(&blockstore, next_slot_on_a, truncated_slots);
|
|
} else {
|
|
info!("Not removing tower!");
|
|
}
|
|
}
|
|
|
|
// Step 4:
|
|
// Run validator C only to make it produce and vote on its own fork.
|
|
info!("Restart validator C again!!!");
|
|
cluster.restart_node(
|
|
&validator_c_pubkey,
|
|
validator_c_info,
|
|
SocketAddrSpace::Unspecified,
|
|
);
|
|
|
|
let mut votes_on_c_fork = std::collections::BTreeSet::new(); // S4 and S5
|
|
for _ in 0..100 {
|
|
sleep(Duration::from_millis(100));
|
|
|
|
if let Some((last_vote, _)) = last_vote_in_tower(&val_c_ledger_path, &validator_c_pubkey) {
|
|
if last_vote != base_slot {
|
|
votes_on_c_fork.insert(last_vote);
|
|
// Collect 4 votes
|
|
if votes_on_c_fork.len() >= 4 {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
assert!(!votes_on_c_fork.is_empty());
|
|
info!("collected validator C's votes: {:?}", votes_on_c_fork);
|
|
|
|
// Step 5:
|
|
// verify whether there was violation or not
|
|
info!("Restart validator A again!!!");
|
|
cluster.restart_node(
|
|
&validator_a_pubkey,
|
|
validator_a_info,
|
|
SocketAddrSpace::Unspecified,
|
|
);
|
|
|
|
// monitor for actual votes from validator A
|
|
let mut bad_vote_detected = false;
|
|
let mut a_votes = vec![];
|
|
for _ in 0..100 {
|
|
sleep(Duration::from_millis(100));
|
|
|
|
if let Some((last_vote, _)) = last_vote_in_tower(&val_a_ledger_path, &validator_a_pubkey) {
|
|
a_votes.push(last_vote);
|
|
let blockstore = Blockstore::open_with_access_type(
|
|
&val_a_ledger_path,
|
|
AccessType::TryPrimaryThenSecondary,
|
|
None,
|
|
true,
|
|
)
|
|
.unwrap();
|
|
let mut ancestors = AncestorIterator::new(last_vote, &blockstore);
|
|
if ancestors.any(|a| votes_on_c_fork.contains(&a)) {
|
|
bad_vote_detected = true;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
info!("Observed A's votes on: {:?}", a_votes);
|
|
|
|
// an elaborate way of assert!(with_tower && !bad_vote_detected || ...)
|
|
let expects_optimistic_confirmation_violation = !with_tower;
|
|
if bad_vote_detected != expects_optimistic_confirmation_violation {
|
|
if bad_vote_detected {
|
|
panic!("No violation expected because of persisted tower!");
|
|
} else {
|
|
panic!("Violation expected because of removed persisted tower!");
|
|
}
|
|
} else if bad_vote_detected {
|
|
info!("THIS TEST expected violations. And indeed, there was some, because of removed persisted tower.");
|
|
} else {
|
|
info!("THIS TEST expected no violation. And indeed, there was none, thanks to persisted tower.");
|
|
}
|
|
}
|
|
|
|
enum ClusterMode {
|
|
MasterOnly,
|
|
MasterSlave,
|
|
}
|
|
|
|
fn do_test_future_tower(cluster_mode: ClusterMode) {
|
|
solana_logger::setup_with_default(RUST_LOG_FILTER);
|
|
|
|
// First set up the cluster with 4 nodes
|
|
let slots_per_epoch = 2048;
|
|
let node_stakes = match cluster_mode {
|
|
ClusterMode::MasterOnly => vec![100],
|
|
ClusterMode::MasterSlave => vec![100, 1],
|
|
};
|
|
|
|
let validator_keys = vec![
|
|
"28bN3xyvrP4E8LwEgtLjhnkb7cY4amQb6DrYAbAYjgRV4GAGgkVM2K7wnxnAS7WDneuavza7x21MiafLu1HkwQt4",
|
|
"2saHBBoTkLMmttmPQP8KfBkcCw45S5cwtV3wTdGCscRC8uxdgvHxpHiWXKx4LvJjNJtnNcbSv5NdheokFFqnNDt8",
|
|
]
|
|
.iter()
|
|
.map(|s| (Arc::new(Keypair::from_base58_string(s)), true))
|
|
.take(node_stakes.len())
|
|
.collect::<Vec<_>>();
|
|
let validators = validator_keys
|
|
.iter()
|
|
.map(|(kp, _)| kp.pubkey())
|
|
.collect::<Vec<_>>();
|
|
let validator_a_pubkey = match cluster_mode {
|
|
ClusterMode::MasterOnly => validators[0],
|
|
ClusterMode::MasterSlave => validators[1],
|
|
};
|
|
|
|
let mut config = ClusterConfig {
|
|
cluster_lamports: 100_000,
|
|
node_stakes: node_stakes.clone(),
|
|
validator_configs: make_identical_validator_configs(
|
|
&ValidatorConfig::default(),
|
|
node_stakes.len(),
|
|
),
|
|
validator_keys: Some(validator_keys),
|
|
slots_per_epoch,
|
|
stakers_slot_offset: slots_per_epoch,
|
|
skip_warmup_slots: true,
|
|
..ClusterConfig::default()
|
|
};
|
|
let mut cluster = LocalCluster::new(&mut config, SocketAddrSpace::Unspecified);
|
|
|
|
let val_a_ledger_path = cluster.ledger_path(&validator_a_pubkey);
|
|
|
|
loop {
|
|
sleep(Duration::from_millis(100));
|
|
|
|
if let Some(root) = root_in_tower(&val_a_ledger_path, &validator_a_pubkey) {
|
|
if root >= 15 {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
let purged_slot_before_restart = 10;
|
|
let validator_a_info = cluster.exit_node(&validator_a_pubkey);
|
|
{
|
|
// create a warped future tower without mangling the tower itself
|
|
info!(
|
|
"Revert blockstore before slot {} and effectively create a future tower",
|
|
purged_slot_before_restart,
|
|
);
|
|
let blockstore = open_blockstore(&val_a_ledger_path);
|
|
purge_slots(&blockstore, purged_slot_before_restart, 100);
|
|
}
|
|
|
|
cluster.restart_node(
|
|
&validator_a_pubkey,
|
|
validator_a_info,
|
|
SocketAddrSpace::Unspecified,
|
|
);
|
|
|
|
let mut newly_rooted = false;
|
|
let some_root_after_restart = purged_slot_before_restart + 25; // 25 is arbitrary; just wait a bit
|
|
for _ in 0..600 {
|
|
sleep(Duration::from_millis(100));
|
|
|
|
if let Some(root) = root_in_tower(&val_a_ledger_path, &validator_a_pubkey) {
|
|
if root >= some_root_after_restart {
|
|
newly_rooted = true;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
let _validator_a_info = cluster.exit_node(&validator_a_pubkey);
|
|
if newly_rooted {
|
|
// there should be no forks; i.e. monotonically increasing ancestor chain
|
|
let (last_vote, _) = last_vote_in_tower(&val_a_ledger_path, &validator_a_pubkey).unwrap();
|
|
let blockstore = open_blockstore(&val_a_ledger_path);
|
|
let actual_block_ancestors = AncestorIterator::new_inclusive(last_vote, &blockstore)
|
|
.take_while(|a| *a >= some_root_after_restart)
|
|
.collect::<Vec<_>>();
|
|
let expected_countinuous_no_fork_votes = (some_root_after_restart..=last_vote)
|
|
.rev()
|
|
.collect::<Vec<_>>();
|
|
assert_eq!(actual_block_ancestors, expected_countinuous_no_fork_votes);
|
|
assert!(actual_block_ancestors.len() > MAX_LOCKOUT_HISTORY);
|
|
info!("validator managed to handle future tower!");
|
|
} else {
|
|
panic!("no root detected");
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
#[serial]
|
|
fn test_future_tower_master_only() {
|
|
do_test_future_tower(ClusterMode::MasterOnly);
|
|
}
|
|
|
|
#[test]
|
|
#[serial]
|
|
fn test_future_tower_master_slave() {
|
|
do_test_future_tower(ClusterMode::MasterSlave);
|
|
}
|
|
|
|
#[test]
|
|
fn test_hard_fork_invalidates_tower() {
|
|
solana_logger::setup_with_default(RUST_LOG_FILTER);
|
|
|
|
// First set up the cluster with 2 nodes
|
|
let slots_per_epoch = 2048;
|
|
let node_stakes = vec![60, 40];
|
|
|
|
let validator_keys = vec![
|
|
"28bN3xyvrP4E8LwEgtLjhnkb7cY4amQb6DrYAbAYjgRV4GAGgkVM2K7wnxnAS7WDneuavza7x21MiafLu1HkwQt4",
|
|
"2saHBBoTkLMmttmPQP8KfBkcCw45S5cwtV3wTdGCscRC8uxdgvHxpHiWXKx4LvJjNJtnNcbSv5NdheokFFqnNDt8",
|
|
]
|
|
.iter()
|
|
.map(|s| (Arc::new(Keypair::from_base58_string(s)), true))
|
|
.take(node_stakes.len())
|
|
.collect::<Vec<_>>();
|
|
let validators = validator_keys
|
|
.iter()
|
|
.map(|(kp, _)| kp.pubkey())
|
|
.collect::<Vec<_>>();
|
|
|
|
let validator_a_pubkey = validators[0];
|
|
let validator_b_pubkey = validators[1];
|
|
|
|
let mut config = ClusterConfig {
|
|
cluster_lamports: 100_000,
|
|
node_stakes: node_stakes.clone(),
|
|
validator_configs: make_identical_validator_configs(
|
|
&ValidatorConfig::default(),
|
|
node_stakes.len(),
|
|
),
|
|
validator_keys: Some(validator_keys),
|
|
slots_per_epoch,
|
|
stakers_slot_offset: slots_per_epoch,
|
|
skip_warmup_slots: true,
|
|
..ClusterConfig::default()
|
|
};
|
|
let cluster = std::sync::Arc::new(std::sync::Mutex::new(LocalCluster::new(
|
|
&mut config,
|
|
SocketAddrSpace::Unspecified,
|
|
)));
|
|
|
|
let val_a_ledger_path = cluster.lock().unwrap().ledger_path(&validator_a_pubkey);
|
|
|
|
let min_root = 15;
|
|
loop {
|
|
sleep(Duration::from_millis(100));
|
|
|
|
if let Some(root) = root_in_tower(&val_a_ledger_path, &validator_a_pubkey) {
|
|
if root >= min_root {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
let mut validator_a_info = cluster.lock().unwrap().exit_node(&validator_a_pubkey);
|
|
let mut validator_b_info = cluster.lock().unwrap().exit_node(&validator_b_pubkey);
|
|
|
|
// setup hard fork at slot < a previously rooted slot!
|
|
let hard_fork_slot = min_root - 5;
|
|
let hard_fork_slots = Some(vec![hard_fork_slot]);
|
|
let mut hard_forks = solana_sdk::hard_forks::HardForks::default();
|
|
hard_forks.register(hard_fork_slot);
|
|
|
|
let expected_shred_version = solana_sdk::shred_version::compute_shred_version(
|
|
&cluster.lock().unwrap().genesis_config.hash(),
|
|
Some(&hard_forks),
|
|
);
|
|
|
|
validator_a_info.config.new_hard_forks = hard_fork_slots.clone();
|
|
validator_a_info.config.wait_for_supermajority = Some(hard_fork_slot);
|
|
validator_a_info.config.expected_shred_version = Some(expected_shred_version);
|
|
|
|
validator_b_info.config.new_hard_forks = hard_fork_slots;
|
|
validator_b_info.config.wait_for_supermajority = Some(hard_fork_slot);
|
|
validator_b_info.config.expected_shred_version = Some(expected_shred_version);
|
|
|
|
// restart validator A first
|
|
let cluster_for_a = cluster.clone();
|
|
// Spawn a thread because wait_for_supermajority blocks in Validator::new()!
|
|
let thread = std::thread::spawn(move || {
|
|
let restart_context = cluster_for_a
|
|
.lock()
|
|
.unwrap()
|
|
.create_restart_context(&validator_a_pubkey, &mut validator_a_info);
|
|
let restarted_validator_info = LocalCluster::restart_node_with_context(
|
|
validator_a_info,
|
|
restart_context,
|
|
SocketAddrSpace::Unspecified,
|
|
);
|
|
cluster_for_a
|
|
.lock()
|
|
.unwrap()
|
|
.add_node(&validator_a_pubkey, restarted_validator_info);
|
|
});
|
|
|
|
// test validator A actually to wait for supermajority
|
|
let mut last_vote = None;
|
|
for _ in 0..10 {
|
|
sleep(Duration::from_millis(1000));
|
|
|
|
let (new_last_vote, _) =
|
|
last_vote_in_tower(&val_a_ledger_path, &validator_a_pubkey).unwrap();
|
|
if let Some(last_vote) = last_vote {
|
|
assert_eq!(last_vote, new_last_vote);
|
|
} else {
|
|
last_vote = Some(new_last_vote);
|
|
}
|
|
}
|
|
|
|
// restart validator B normally
|
|
cluster.lock().unwrap().restart_node(
|
|
&validator_b_pubkey,
|
|
validator_b_info,
|
|
SocketAddrSpace::Unspecified,
|
|
);
|
|
|
|
// validator A should now start so join its thread here
|
|
thread.join().unwrap();
|
|
|
|
// new slots should be rooted after hard-fork cluster relaunch
|
|
cluster
|
|
.lock()
|
|
.unwrap()
|
|
.check_for_new_roots(16, "hard fork", SocketAddrSpace::Unspecified);
|
|
}
|
|
|
|
#[test]
|
|
#[serial]
|
|
fn test_no_optimistic_confirmation_violation_with_tower() {
|
|
do_test_optimistic_confirmation_violation_with_or_without_tower(true);
|
|
}
|
|
|
|
#[test]
|
|
#[serial]
|
|
fn test_optimistic_confirmation_violation_without_tower() {
|
|
do_test_optimistic_confirmation_violation_with_or_without_tower(false);
|
|
}
|
|
|
|
#[test]
|
|
#[serial]
|
|
fn test_run_test_load_program_accounts_root() {
|
|
run_test_load_program_accounts(CommitmentConfig::finalized());
|
|
}
|
|
|
|
#[test]
|
|
#[serial]
|
|
fn test_run_test_load_program_accounts_partition_root() {
|
|
run_test_load_program_accounts_partition(CommitmentConfig::finalized());
|
|
}
|
|
|
|
fn run_test_load_program_accounts_partition(scan_commitment: CommitmentConfig) {
|
|
let num_slots_per_validator = 8;
|
|
let partitions: [Vec<usize>; 2] = [vec![1], vec![1]];
|
|
let (leader_schedule, validator_keys) =
|
|
create_custom_leader_schedule(&[num_slots_per_validator, num_slots_per_validator]);
|
|
|
|
let (update_client_sender, update_client_receiver) = unbounded();
|
|
let (scan_client_sender, scan_client_receiver) = unbounded();
|
|
let exit = Arc::new(AtomicBool::new(false));
|
|
|
|
let (t_update, t_scan, additional_accounts) = setup_transfer_scan_threads(
|
|
1000,
|
|
exit.clone(),
|
|
scan_commitment,
|
|
update_client_receiver,
|
|
scan_client_receiver,
|
|
);
|
|
|
|
let on_partition_start = |cluster: &mut LocalCluster, _: &mut ()| {
|
|
let update_client = cluster
|
|
.get_validator_client(&cluster.entry_point_info.id)
|
|
.unwrap();
|
|
update_client_sender.send(update_client).unwrap();
|
|
let scan_client = cluster
|
|
.get_validator_client(&cluster.entry_point_info.id)
|
|
.unwrap();
|
|
scan_client_sender.send(scan_client).unwrap();
|
|
};
|
|
|
|
let on_partition_before_resolved = |_: &mut LocalCluster, _: &mut ()| {};
|
|
|
|
let on_partition_resolved = |cluster: &mut LocalCluster, _: &mut ()| {
|
|
cluster.check_for_new_roots(
|
|
20,
|
|
"run_test_load_program_accounts_partition",
|
|
SocketAddrSpace::Unspecified,
|
|
);
|
|
exit.store(true, Ordering::Relaxed);
|
|
t_update.join().unwrap();
|
|
t_scan.join().unwrap();
|
|
};
|
|
|
|
run_cluster_partition(
|
|
&partitions,
|
|
Some((leader_schedule, validator_keys)),
|
|
(),
|
|
on_partition_start,
|
|
on_partition_before_resolved,
|
|
on_partition_resolved,
|
|
None,
|
|
None,
|
|
additional_accounts,
|
|
);
|
|
}
|
|
|
|
fn setup_transfer_scan_threads(
|
|
num_starting_accounts: usize,
|
|
exit: Arc<AtomicBool>,
|
|
scan_commitment: CommitmentConfig,
|
|
update_client_receiver: Receiver<ThinClient>,
|
|
scan_client_receiver: Receiver<ThinClient>,
|
|
) -> (
|
|
JoinHandle<()>,
|
|
JoinHandle<()>,
|
|
Vec<(Pubkey, AccountSharedData)>,
|
|
) {
|
|
let exit_ = exit.clone();
|
|
let starting_keypairs: Arc<Vec<Keypair>> = Arc::new(
|
|
iter::repeat_with(Keypair::new)
|
|
.take(num_starting_accounts)
|
|
.collect(),
|
|
);
|
|
let target_keypairs: Arc<Vec<Keypair>> = Arc::new(
|
|
iter::repeat_with(Keypair::new)
|
|
.take(num_starting_accounts)
|
|
.collect(),
|
|
);
|
|
let starting_accounts: Vec<(Pubkey, AccountSharedData)> = starting_keypairs
|
|
.iter()
|
|
.map(|k| {
|
|
(
|
|
k.pubkey(),
|
|
AccountSharedData::new(1, 0, &system_program::id()),
|
|
)
|
|
})
|
|
.collect();
|
|
|
|
let starting_keypairs_ = starting_keypairs.clone();
|
|
let target_keypairs_ = target_keypairs.clone();
|
|
let t_update = Builder::new()
|
|
.name("update".to_string())
|
|
.spawn(move || {
|
|
let client = update_client_receiver.recv().unwrap();
|
|
loop {
|
|
if exit_.load(Ordering::Relaxed) {
|
|
return;
|
|
}
|
|
let (blockhash, _) = client
|
|
.get_latest_blockhash_with_commitment(CommitmentConfig::processed())
|
|
.unwrap();
|
|
for i in 0..starting_keypairs_.len() {
|
|
client
|
|
.async_transfer(
|
|
1,
|
|
&starting_keypairs_[i],
|
|
&target_keypairs_[i].pubkey(),
|
|
blockhash,
|
|
)
|
|
.unwrap();
|
|
}
|
|
for i in 0..starting_keypairs_.len() {
|
|
client
|
|
.async_transfer(
|
|
1,
|
|
&target_keypairs_[i],
|
|
&starting_keypairs_[i].pubkey(),
|
|
blockhash,
|
|
)
|
|
.unwrap();
|
|
}
|
|
}
|
|
})
|
|
.unwrap();
|
|
|
|
// Scan, the total funds should add up to the original
|
|
let mut scan_commitment_config = RpcProgramAccountsConfig::default();
|
|
scan_commitment_config.account_config.commitment = Some(scan_commitment);
|
|
let tracked_pubkeys: HashSet<Pubkey> = starting_keypairs
|
|
.iter()
|
|
.chain(target_keypairs.iter())
|
|
.map(|k| k.pubkey())
|
|
.collect();
|
|
let expected_total_balance = num_starting_accounts as u64;
|
|
let t_scan = Builder::new()
|
|
.name("scan".to_string())
|
|
.spawn(move || {
|
|
let client = scan_client_receiver.recv().unwrap();
|
|
loop {
|
|
if exit.load(Ordering::Relaxed) {
|
|
return;
|
|
}
|
|
if let Some(total_scan_balance) = client
|
|
.get_program_accounts_with_config(
|
|
&system_program::id(),
|
|
scan_commitment_config.clone(),
|
|
)
|
|
.ok()
|
|
.map(|result| {
|
|
result
|
|
.into_iter()
|
|
.map(|(key, account)| {
|
|
if tracked_pubkeys.contains(&key) {
|
|
account.lamports
|
|
} else {
|
|
0
|
|
}
|
|
})
|
|
.sum::<u64>()
|
|
})
|
|
{
|
|
assert_eq!(total_scan_balance, expected_total_balance);
|
|
}
|
|
}
|
|
})
|
|
.unwrap();
|
|
|
|
(t_update, t_scan, starting_accounts)
|
|
}
|
|
|
|
fn run_test_load_program_accounts(scan_commitment: CommitmentConfig) {
|
|
solana_logger::setup_with_default(RUST_LOG_FILTER);
|
|
// First set up the cluster with 2 nodes
|
|
let slots_per_epoch = 2048;
|
|
let node_stakes = vec![51, 50];
|
|
let validator_keys: Vec<_> = vec![
|
|
"4qhhXNTbKD1a5vxDDLZcHKj7ELNeiivtUBxn3wUK1F5VRsQVP89VUhfXqSfgiFB14GfuBgtrQ96n9NvWQADVkcCg",
|
|
"3kHBzVwie5vTEaY6nFCPeFT8qDpoXzn7dCEioGRNBTnUDpvwnG85w8Wq63gVWpVTP8k2a8cgcWRjSXyUkEygpXWS",
|
|
]
|
|
.iter()
|
|
.map(|s| (Arc::new(Keypair::from_base58_string(s)), true))
|
|
.take(node_stakes.len())
|
|
.collect();
|
|
|
|
let num_starting_accounts = 1000;
|
|
let exit = Arc::new(AtomicBool::new(false));
|
|
let (update_client_sender, update_client_receiver) = unbounded();
|
|
let (scan_client_sender, scan_client_receiver) = unbounded();
|
|
|
|
// Setup the update/scan threads
|
|
let (t_update, t_scan, starting_accounts) = setup_transfer_scan_threads(
|
|
num_starting_accounts,
|
|
exit.clone(),
|
|
scan_commitment,
|
|
update_client_receiver,
|
|
scan_client_receiver,
|
|
);
|
|
|
|
let mut config = ClusterConfig {
|
|
cluster_lamports: 100_000,
|
|
node_stakes: node_stakes.clone(),
|
|
validator_configs: make_identical_validator_configs(
|
|
&ValidatorConfig::default(),
|
|
node_stakes.len(),
|
|
),
|
|
validator_keys: Some(validator_keys),
|
|
slots_per_epoch,
|
|
stakers_slot_offset: slots_per_epoch,
|
|
skip_warmup_slots: true,
|
|
additional_accounts: starting_accounts,
|
|
..ClusterConfig::default()
|
|
};
|
|
let cluster = LocalCluster::new(&mut config, SocketAddrSpace::Unspecified);
|
|
|
|
// Give the threads a client to use for querying the cluster
|
|
let all_pubkeys = cluster.get_node_pubkeys();
|
|
let other_validator_id = all_pubkeys
|
|
.into_iter()
|
|
.find(|x| *x != cluster.entry_point_info.id)
|
|
.unwrap();
|
|
let client = cluster
|
|
.get_validator_client(&cluster.entry_point_info.id)
|
|
.unwrap();
|
|
update_client_sender.send(client).unwrap();
|
|
let scan_client = cluster.get_validator_client(&other_validator_id).unwrap();
|
|
scan_client_sender.send(scan_client).unwrap();
|
|
|
|
// Wait for some roots to pass
|
|
cluster.check_for_new_roots(
|
|
40,
|
|
"run_test_load_program_accounts",
|
|
SocketAddrSpace::Unspecified,
|
|
);
|
|
|
|
// Exit and ensure no violations of consistency were found
|
|
exit.store(true, Ordering::Relaxed);
|
|
t_update.join().unwrap();
|
|
t_scan.join().unwrap();
|
|
}
|
|
|
|
fn wait_for_next_snapshot(
|
|
cluster: &LocalCluster,
|
|
snapshot_archives_dir: &Path,
|
|
) -> (PathBuf, (Slot, Hash)) {
|
|
// Get slot after which this was generated
|
|
let client = cluster
|
|
.get_validator_client(&cluster.entry_point_info.id)
|
|
.unwrap();
|
|
let last_slot = client
|
|
.get_slot_with_commitment(CommitmentConfig::processed())
|
|
.expect("Couldn't get slot");
|
|
|
|
// Wait for a snapshot for a bank >= last_slot to be made so we know that the snapshot
|
|
// must include the transactions just pushed
|
|
trace!(
|
|
"Waiting for snapshot archive to be generated with slot > {}",
|
|
last_slot
|
|
);
|
|
loop {
|
|
if let Some(full_snapshot_archive_info) =
|
|
snapshot_utils::get_highest_full_snapshot_archive_info(snapshot_archives_dir)
|
|
{
|
|
trace!(
|
|
"full snapshot for slot {} exists",
|
|
full_snapshot_archive_info.slot()
|
|
);
|
|
if full_snapshot_archive_info.slot() >= last_slot {
|
|
return (
|
|
full_snapshot_archive_info.path().clone(),
|
|
(
|
|
full_snapshot_archive_info.slot(),
|
|
*full_snapshot_archive_info.hash(),
|
|
),
|
|
);
|
|
}
|
|
trace!(
|
|
"full snapshot slot {} < last_slot {}",
|
|
full_snapshot_archive_info.slot(),
|
|
last_slot
|
|
);
|
|
}
|
|
sleep(Duration::from_millis(5000));
|
|
}
|
|
}
|
|
|
|
fn farf_dir() -> PathBuf {
|
|
std::env::var("FARF_DIR")
|
|
.unwrap_or_else(|_| "farf".to_string())
|
|
.into()
|
|
}
|
|
|
|
fn generate_account_paths(num_account_paths: usize) -> (Vec<TempDir>, Vec<PathBuf>) {
|
|
let account_storage_dirs: Vec<TempDir> = (0..num_account_paths)
|
|
.map(|_| tempfile::tempdir_in(farf_dir()).unwrap())
|
|
.collect();
|
|
let account_storage_paths: Vec<_> = account_storage_dirs
|
|
.iter()
|
|
.map(|a| a.path().to_path_buf())
|
|
.collect();
|
|
(account_storage_dirs, account_storage_paths)
|
|
}
|
|
|
|
struct SnapshotValidatorConfig {
|
|
_snapshot_dir: TempDir,
|
|
snapshot_archives_dir: TempDir,
|
|
account_storage_dirs: Vec<TempDir>,
|
|
validator_config: ValidatorConfig,
|
|
}
|
|
|
|
fn setup_snapshot_validator_config(
|
|
snapshot_interval_slots: u64,
|
|
num_account_paths: usize,
|
|
) -> SnapshotValidatorConfig {
|
|
// Create the snapshot config
|
|
let bank_snapshots_dir = tempfile::tempdir_in(farf_dir()).unwrap();
|
|
let snapshot_archives_dir = tempfile::tempdir_in(farf_dir()).unwrap();
|
|
let snapshot_config = SnapshotConfig {
|
|
full_snapshot_archive_interval_slots: snapshot_interval_slots,
|
|
incremental_snapshot_archive_interval_slots: Slot::MAX,
|
|
snapshot_archives_dir: snapshot_archives_dir.path().to_path_buf(),
|
|
bank_snapshots_dir: bank_snapshots_dir.path().to_path_buf(),
|
|
archive_format: ArchiveFormat::TarBzip2,
|
|
snapshot_version: snapshot_utils::SnapshotVersion::default(),
|
|
maximum_full_snapshot_archives_to_retain:
|
|
snapshot_utils::DEFAULT_MAX_FULL_SNAPSHOT_ARCHIVES_TO_RETAIN,
|
|
maximum_incremental_snapshot_archives_to_retain:
|
|
snapshot_utils::DEFAULT_MAX_INCREMENTAL_SNAPSHOT_ARCHIVES_TO_RETAIN,
|
|
};
|
|
|
|
// Create the account paths
|
|
let (account_storage_dirs, account_storage_paths) = generate_account_paths(num_account_paths);
|
|
|
|
// Create the validator config
|
|
let validator_config = ValidatorConfig {
|
|
snapshot_config: Some(snapshot_config),
|
|
account_paths: account_storage_paths,
|
|
accounts_hash_interval_slots: snapshot_interval_slots,
|
|
..ValidatorConfig::default()
|
|
};
|
|
|
|
SnapshotValidatorConfig {
|
|
_snapshot_dir: bank_snapshots_dir,
|
|
snapshot_archives_dir,
|
|
account_storage_dirs,
|
|
validator_config,
|
|
}
|
|
}
|