686 lines
26 KiB
Rust
686 lines
26 KiB
Rust
//! The `replicate_stage` replicates transactions broadcast by the leader.
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use bank::Bank;
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use cluster_info::ClusterInfo;
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use counter::Counter;
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use entry::{EntryReceiver, EntrySender};
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use solana_sdk::hash::Hash;
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use ledger::Block;
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use log::Level;
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use packet::BlobError;
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use result::{Error, Result};
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use service::Service;
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use solana_metrics::{influxdb, submit};
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use solana_sdk::signature::{Keypair, KeypairUtil};
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use solana_sdk::timing::duration_as_ms;
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use std::net::UdpSocket;
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use std::sync::atomic::{AtomicBool, AtomicUsize, Ordering};
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use std::sync::mpsc::channel;
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use std::sync::mpsc::RecvTimeoutError;
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use std::sync::{Arc, RwLock};
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use std::thread::{self, Builder, JoinHandle};
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use std::time::Duration;
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use std::time::Instant;
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use streamer::{responder, BlobSender};
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use vote_stage::send_validator_vote;
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#[derive(Debug, PartialEq, Eq, Clone)]
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pub enum ReplicateStageReturnType {
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LeaderRotation(u64, u64, Hash),
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}
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// Implement a destructor for the ReplicateStage thread to signal it exited
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// even on panics
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struct Finalizer {
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exit_sender: Arc<AtomicBool>,
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}
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impl Finalizer {
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fn new(exit_sender: Arc<AtomicBool>) -> Self {
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Finalizer { exit_sender }
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}
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}
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// Implement a destructor for Finalizer.
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impl Drop for Finalizer {
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fn drop(&mut self) {
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self.exit_sender.clone().store(true, Ordering::Relaxed);
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}
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}
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pub struct ReplicateStage {
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t_responder: JoinHandle<()>,
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t_replicate: JoinHandle<Option<ReplicateStageReturnType>>,
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}
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impl ReplicateStage {
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/// Process entry blobs, already in order
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fn replicate_requests(
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bank: &Arc<Bank>,
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cluster_info: &Arc<RwLock<ClusterInfo>>,
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window_receiver: &EntryReceiver,
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keypair: &Arc<Keypair>,
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vote_account_keypair: &Arc<Keypair>,
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vote_blob_sender: Option<&BlobSender>,
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ledger_entry_sender: &EntrySender,
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entry_height: &mut u64,
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last_entry_id: &mut Hash,
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) -> Result<()> {
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let timer = Duration::new(1, 0);
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//coalesce all the available entries into a single vote
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let mut entries = window_receiver.recv_timeout(timer)?;
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while let Ok(mut more) = window_receiver.try_recv() {
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entries.append(&mut more);
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}
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submit(
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influxdb::Point::new("replicate-stage")
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.add_field("count", influxdb::Value::Integer(entries.len() as i64))
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.to_owned(),
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);
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let mut res = Ok(());
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let mut num_entries_to_write = entries.len();
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let now = Instant::now();
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if !entries.as_slice().verify(last_entry_id) {
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inc_new_counter_info!("replicate_stage-verify-fail", entries.len());
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return Err(Error::BlobError(BlobError::VerificationFailed));
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}
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inc_new_counter_info!(
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"replicate_stage-verify-duration",
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duration_as_ms(&now.elapsed()) as usize
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);
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let (current_leader, _) = bank
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.get_current_leader()
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.expect("Scheduled leader id should never be unknown while processing entries");
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for (i, entry) in entries.iter().enumerate() {
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res = bank.process_entry(&entry);
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let my_id = keypair.pubkey();
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let (scheduled_leader, _) = bank
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.get_current_leader()
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.expect("Scheduled leader id should never be unknown while processing entries");
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// TODO: Remove this soon once we boot the leader from ClusterInfo
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if scheduled_leader != current_leader {
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cluster_info.write().unwrap().set_leader(scheduled_leader);
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}
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if my_id == scheduled_leader {
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num_entries_to_write = i + 1;
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break;
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}
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if res.is_err() {
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// TODO: This will return early from the first entry that has an erroneous
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// transaction, instead of processing the rest of the entries in the vector
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// of received entries. This is in line with previous behavior when
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// bank.process_entries() was used to process the entries, but doesn't solve the
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// issue that the bank state was still changed, leading to inconsistencies with the
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// leader as the leader currently should not be publishing erroneous transactions
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break;
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}
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}
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// If leader rotation happened, only write the entries up to leader rotation.
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entries.truncate(num_entries_to_write);
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*last_entry_id = entries
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.last()
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.expect("Entries cannot be empty at this point")
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.id;
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inc_new_counter_info!(
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"replicate-transactions",
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entries.iter().map(|x| x.transactions.len()).sum()
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);
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let entries_len = entries.len() as u64;
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// TODO: move this to another stage?
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// TODO: In line with previous behavior, this will write all the entries even if
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// an error occurred processing one of the entries (causing the rest of the entries to
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// not be processed).
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if entries_len != 0 {
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ledger_entry_sender.send(entries)?;
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}
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*entry_height += entries_len;
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res?;
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if let Some(sender) = vote_blob_sender {
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send_validator_vote(bank, vote_account_keypair, &cluster_info, sender)?;
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}
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Ok(())
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}
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#[allow(clippy::new_ret_no_self)]
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pub fn new(
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keypair: Arc<Keypair>,
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vote_account_keypair: Arc<Keypair>,
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bank: Arc<Bank>,
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cluster_info: Arc<RwLock<ClusterInfo>>,
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window_receiver: EntryReceiver,
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exit: Arc<AtomicBool>,
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entry_height: u64,
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last_entry_id: Hash,
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) -> (Self, EntryReceiver) {
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let (vote_blob_sender, vote_blob_receiver) = channel();
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let (ledger_entry_sender, ledger_entry_receiver) = channel();
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let send = UdpSocket::bind("0.0.0.0:0").expect("bind");
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let t_responder = responder("replicate_stage", Arc::new(send), vote_blob_receiver);
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let keypair = Arc::new(keypair);
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let t_replicate = Builder::new()
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.name("solana-replicate-stage".to_string())
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.spawn(move || {
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let _exit = Finalizer::new(exit);
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let now = Instant::now();
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let mut next_vote_secs = 1;
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let mut entry_height_ = entry_height;
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let mut last_entry_id = last_entry_id;
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loop {
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let (leader_id, _) = bank
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.get_current_leader()
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.expect("Scheduled leader id should never be unknown at this point");
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if leader_id == keypair.pubkey() {
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return Some(ReplicateStageReturnType::LeaderRotation(
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bank.tick_height(),
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entry_height_,
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// We should never start the TPU / this stage on an exact entry that causes leader
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// rotation (Fullnode should automatically transition on startup if it detects
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// are no longer a validator. Hence we can assume that some entry must have
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// triggered leader rotation
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last_entry_id,
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));
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}
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// Only vote once a second.
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let vote_sender = if now.elapsed().as_secs() > next_vote_secs {
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next_vote_secs += 1;
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Some(&vote_blob_sender)
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} else {
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None
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};
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match Self::replicate_requests(
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&bank,
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&cluster_info,
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&window_receiver,
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&keypair,
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&vote_account_keypair,
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vote_sender,
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&ledger_entry_sender,
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&mut entry_height_,
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&mut last_entry_id,
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) {
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Err(Error::RecvTimeoutError(RecvTimeoutError::Disconnected)) => break,
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Err(Error::RecvTimeoutError(RecvTimeoutError::Timeout)) => (),
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Err(e) => error!("{:?}", e),
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Ok(()) => (),
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}
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}
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None
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})
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.unwrap();
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(
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Self {
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t_responder,
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t_replicate,
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},
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ledger_entry_receiver,
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)
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}
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}
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impl Service for ReplicateStage {
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type JoinReturnType = Option<ReplicateStageReturnType>;
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fn join(self) -> thread::Result<Option<ReplicateStageReturnType>> {
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self.t_responder.join()?;
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self.t_replicate.join()
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}
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}
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#[cfg(test)]
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mod test {
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use bank::Bank;
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use cluster_info::{ClusterInfo, Node};
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use entry::Entry;
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use fullnode::Fullnode;
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use leader_scheduler::{make_active_set_entries, LeaderScheduler, LeaderSchedulerConfig};
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use ledger::{create_ticks, create_tmp_sample_ledger, LedgerWriter};
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use logger;
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use packet::BlobError;
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use replicate_stage::{ReplicateStage, ReplicateStageReturnType};
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use result::Error;
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use service::Service;
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use solana_sdk::hash::Hash;
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use solana_sdk::signature::{Keypair, KeypairUtil};
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use std::fs::remove_dir_all;
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use std::sync::atomic::{AtomicBool, Ordering};
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use std::sync::mpsc::channel;
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use std::sync::{Arc, RwLock};
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use vote_stage::{send_validator_vote, VoteError};
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#[test]
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pub fn test_replicate_stage_leader_rotation_exit() {
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logger::setup();
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// Set up dummy node to host a ReplicateStage
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let my_keypair = Keypair::new();
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let my_id = my_keypair.pubkey();
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let my_node = Node::new_localhost_with_pubkey(my_id);
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let cluster_info_me = ClusterInfo::new(my_node.info.clone());
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// Create keypair for the old leader
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let old_leader_id = Keypair::new().pubkey();
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// Create a ledger
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let num_ending_ticks = 1;
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let (mint, my_ledger_path, genesis_entries) = create_tmp_sample_ledger(
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"test_replicate_stage_leader_rotation_exit",
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10_000,
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num_ending_ticks,
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old_leader_id,
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500,
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);
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let mut last_id = genesis_entries
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.last()
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.expect("expected at least one genesis entry")
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.id;
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// Write two entries to the ledger so that the validator is in the active set:
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// 1) Give the validator a nonzero number of tokens 2) A vote from the validator .
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// This will cause leader rotation after the bootstrap height
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let mut ledger_writer = LedgerWriter::open(&my_ledger_path, false).unwrap();
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let (active_set_entries, vote_account_keypair) =
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make_active_set_entries(&my_keypair, &mint.keypair(), &last_id, &last_id, 0);
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last_id = active_set_entries.last().unwrap().id;
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let initial_tick_height = genesis_entries
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.iter()
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.skip(2)
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.fold(0, |tick_count, entry| tick_count + entry.is_tick() as u64);
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let active_set_entries_len = active_set_entries.len() as u64;
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let initial_non_tick_height = genesis_entries.len() as u64 - initial_tick_height;
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let initial_entry_len = genesis_entries.len() as u64 + active_set_entries_len;
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ledger_writer.write_entries(&active_set_entries).unwrap();
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// Set up the LeaderScheduler so that this this node becomes the leader at
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// bootstrap_height = num_bootstrap_slots * leader_rotation_interval
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let leader_rotation_interval = 10;
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let num_bootstrap_slots = 2;
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let bootstrap_height = num_bootstrap_slots * leader_rotation_interval;
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let leader_scheduler_config = LeaderSchedulerConfig::new(
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Some(bootstrap_height),
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Some(leader_rotation_interval),
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Some(leader_rotation_interval * 2),
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Some(bootstrap_height),
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);
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let leader_scheduler =
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Arc::new(RwLock::new(LeaderScheduler::new(&leader_scheduler_config)));
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// Set up the bank
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let (bank, _, last_entry_id) =
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Fullnode::new_bank_from_ledger(&my_ledger_path, leader_scheduler);
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// Set up the replicate stage
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let (entry_sender, entry_receiver) = channel();
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let exit = Arc::new(AtomicBool::new(false));
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let (replicate_stage, ledger_writer_recv) = ReplicateStage::new(
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Arc::new(my_keypair),
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Arc::new(vote_account_keypair),
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Arc::new(bank),
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Arc::new(RwLock::new(cluster_info_me)),
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entry_receiver,
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exit.clone(),
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initial_entry_len,
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last_entry_id,
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);
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// Send enough ticks to trigger leader rotation
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let extra_entries = leader_rotation_interval;
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let total_entries_to_send = (bootstrap_height + extra_entries) as usize;
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let num_hashes = 1;
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let mut entries_to_send = vec![];
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while entries_to_send.len() < total_entries_to_send {
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let entry = Entry::new(&mut last_id, num_hashes, vec![]);
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last_id = entry.id;
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entries_to_send.push(entry);
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}
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assert!((num_ending_ticks as u64) < bootstrap_height);
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// Add on the only entries that weren't ticks to the bootstrap height to get the
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// total expected entry length
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let leader_rotation_index = (bootstrap_height - initial_tick_height - 1) as usize;
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let expected_entry_height =
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bootstrap_height + initial_non_tick_height + active_set_entries_len;
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let expected_last_id = entries_to_send[leader_rotation_index].id;
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entry_sender.send(entries_to_send.clone()).unwrap();
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// Wait for replicate_stage to exit and check return value is correct
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assert_eq!(
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Some(ReplicateStageReturnType::LeaderRotation(
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bootstrap_height,
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expected_entry_height,
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expected_last_id,
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)),
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replicate_stage.join().expect("replicate stage join")
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);
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// Check that the entries on the ledger writer channel are correct
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let received_ticks = ledger_writer_recv
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.recv()
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.expect("Expected to recieve an entry on the ledger writer receiver");
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assert_eq!(
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&received_ticks[..],
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&entries_to_send[..leader_rotation_index + 1]
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);
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assert_eq!(exit.load(Ordering::Relaxed), true);
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let _ignored = remove_dir_all(&my_ledger_path);
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}
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#[test]
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fn test_vote_error_replicate_stage_correctness() {
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// Set up dummy node to host a ReplicateStage
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let my_keypair = Keypair::new();
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let my_id = my_keypair.pubkey();
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let my_node = Node::new_localhost_with_pubkey(my_id);
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// Create keypair for the leader
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let leader_id = Keypair::new().pubkey();
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let leader_scheduler = Arc::new(RwLock::new(LeaderScheduler::default()));
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let num_ending_ticks = 0;
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let (_, my_ledger_path, genesis_entries) = create_tmp_sample_ledger(
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"test_vote_error_replicate_stage_correctness",
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10_000,
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num_ending_ticks,
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leader_id,
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500,
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);
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let initial_entry_len = genesis_entries.len();
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// Set up the bank
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let (bank, _, last_entry_id) =
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Fullnode::new_bank_from_ledger(&my_ledger_path, leader_scheduler);
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// Set up the cluster info
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let cluster_info_me = Arc::new(RwLock::new(ClusterInfo::new(my_node.info.clone())));
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// Set up the replicate stage
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let vote_account_keypair = Arc::new(Keypair::new());
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let bank = Arc::new(bank);
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let (entry_sender, entry_receiver) = channel();
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let exit = Arc::new(AtomicBool::new(false));
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let (replicate_stage, ledger_writer_recv) = ReplicateStage::new(
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Arc::new(my_keypair),
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vote_account_keypair.clone(),
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bank.clone(),
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cluster_info_me.clone(),
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entry_receiver,
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exit.clone(),
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initial_entry_len as u64,
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last_entry_id,
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);
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// Vote sender should error because no leader contact info is found in the
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// ClusterInfo
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let (mock_sender, _mock_receiver) = channel();
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let vote_err =
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send_validator_vote(&bank, &vote_account_keypair, &cluster_info_me, &mock_sender);
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if let Err(Error::VoteError(vote_error)) = vote_err {
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assert_eq!(vote_error, VoteError::LeaderInfoNotFound);
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} else {
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panic!("Expected validator vote to fail with LeaderInfoNotFound");
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}
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// Send ReplicateStage an entry, should see it on the ledger writer receiver
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let next_tick = create_ticks(
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1,
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genesis_entries
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.last()
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.expect("Expected nonzero number of entries in genesis")
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.id,
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);
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entry_sender
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.send(next_tick.clone())
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.expect("Error sending entry to ReplicateStage");
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let received_tick = ledger_writer_recv
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.recv()
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.expect("Expected to recieve an entry on the ledger writer receiver");
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assert_eq!(next_tick, received_tick);
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drop(entry_sender);
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replicate_stage
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.join()
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.expect("Expect successful ReplicateStage exit");
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let _ignored = remove_dir_all(&my_ledger_path);
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}
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#[test]
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fn test_vote_error_replicate_stage_leader_rotation() {
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// Set up dummy node to host a ReplicateStage
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let my_keypair = Keypair::new();
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let my_id = my_keypair.pubkey();
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let my_node = Node::new_localhost_with_pubkey(my_id);
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// Create keypair for the leader
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let leader_id = Keypair::new().pubkey();
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// Create the ledger
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let (mint, my_ledger_path, genesis_entries) = create_tmp_sample_ledger(
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"test_vote_error_replicate_stage_leader_rotation",
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10_000,
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0,
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leader_id,
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500,
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);
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let mut last_id = genesis_entries
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.last()
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.expect("expected at least one genesis entry")
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.id;
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// Write two entries to the ledger so that the validator is in the active set:
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// 1) Give the validator a nonzero number of tokens 2) A vote from the validator.
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// This will cause leader rotation after the bootstrap height
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let mut ledger_writer = LedgerWriter::open(&my_ledger_path, false).unwrap();
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let (active_set_entries, vote_account_keypair) =
|
|
make_active_set_entries(&my_keypair, &mint.keypair(), &last_id, &last_id, 0);
|
|
last_id = active_set_entries.last().unwrap().id;
|
|
let initial_tick_height = genesis_entries
|
|
.iter()
|
|
.skip(2)
|
|
.fold(0, |tick_count, entry| tick_count + entry.is_tick() as u64);
|
|
let active_set_entries_len = active_set_entries.len() as u64;
|
|
let initial_non_tick_height = genesis_entries.len() as u64 - initial_tick_height;
|
|
let initial_entry_len = genesis_entries.len() as u64 + active_set_entries_len;
|
|
ledger_writer.write_entries(&active_set_entries).unwrap();
|
|
|
|
// Set up the LeaderScheduler so that this this node becomes the leader at
|
|
// bootstrap_height = num_bootstrap_slots * leader_rotation_interval
|
|
let leader_rotation_interval = 10;
|
|
let num_bootstrap_slots = 2;
|
|
let bootstrap_height = num_bootstrap_slots * leader_rotation_interval;
|
|
let leader_scheduler_config = LeaderSchedulerConfig::new(
|
|
Some(bootstrap_height),
|
|
Some(leader_rotation_interval),
|
|
Some(leader_rotation_interval * 2),
|
|
Some(bootstrap_height),
|
|
);
|
|
|
|
let leader_scheduler =
|
|
Arc::new(RwLock::new(LeaderScheduler::new(&leader_scheduler_config)));
|
|
|
|
// Set up the bank
|
|
let (bank, _, last_entry_id) =
|
|
Fullnode::new_bank_from_ledger(&my_ledger_path, leader_scheduler);
|
|
|
|
// Set up the cluster info
|
|
let cluster_info_me = Arc::new(RwLock::new(ClusterInfo::new(my_node.info.clone())));
|
|
|
|
// Set up the replicate stage
|
|
let vote_account_keypair = Arc::new(vote_account_keypair);
|
|
let bank = Arc::new(bank);
|
|
let (entry_sender, entry_receiver) = channel();
|
|
let exit = Arc::new(AtomicBool::new(false));
|
|
let (replicate_stage, ledger_writer_recv) = ReplicateStage::new(
|
|
Arc::new(my_keypair),
|
|
vote_account_keypair.clone(),
|
|
bank.clone(),
|
|
cluster_info_me.clone(),
|
|
entry_receiver,
|
|
exit.clone(),
|
|
initial_entry_len as u64,
|
|
last_entry_id,
|
|
);
|
|
|
|
// Vote sender should error because no leader contact info is found in the
|
|
// ClusterInfo
|
|
let (mock_sender, _mock_receiver) = channel();
|
|
let vote_err =
|
|
send_validator_vote(&bank, &vote_account_keypair, &cluster_info_me, &mock_sender);
|
|
if let Err(Error::VoteError(vote_error)) = vote_err {
|
|
assert_eq!(vote_error, VoteError::LeaderInfoNotFound);
|
|
} else {
|
|
panic!("Expected validator vote to fail with LeaderInfoNotFound");
|
|
}
|
|
|
|
// Send enough ticks to trigger leader rotation
|
|
let total_entries_to_send = (bootstrap_height - initial_tick_height) as usize;
|
|
let num_hashes = 1;
|
|
|
|
// Add on the only entries that weren't ticks to the bootstrap height to get the
|
|
// total expected entry length
|
|
let expected_entry_height =
|
|
bootstrap_height + initial_non_tick_height + active_set_entries_len;
|
|
let leader_rotation_index = (bootstrap_height - initial_tick_height - 1) as usize;
|
|
let mut expected_last_id = Hash::default();
|
|
for i in 0..total_entries_to_send {
|
|
let entry = Entry::new(&mut last_id, num_hashes, vec![]);
|
|
last_id = entry.id;
|
|
entry_sender
|
|
.send(vec![entry.clone()])
|
|
.expect("Expected to be able to send entry to ReplicateStage");
|
|
// Check that the entries on the ledger writer channel are correct
|
|
let received_entry = ledger_writer_recv
|
|
.recv()
|
|
.expect("Expected to recieve an entry on the ledger writer receiver");
|
|
assert_eq!(received_entry[0], entry);
|
|
|
|
if i == leader_rotation_index {
|
|
expected_last_id = entry.id;
|
|
}
|
|
}
|
|
|
|
assert_ne!(expected_last_id, Hash::default());
|
|
|
|
// Wait for replicate_stage to exit and check return value is correct
|
|
assert_eq!(
|
|
Some(ReplicateStageReturnType::LeaderRotation(
|
|
bootstrap_height,
|
|
expected_entry_height,
|
|
expected_last_id,
|
|
)),
|
|
replicate_stage.join().expect("replicate stage join")
|
|
);
|
|
|
|
assert_eq!(exit.load(Ordering::Relaxed), true);
|
|
let _ignored = remove_dir_all(&my_ledger_path);
|
|
}
|
|
|
|
#[test]
|
|
fn test_replicate_stage_poh_error_entry_receiver() {
|
|
// Set up dummy node to host a ReplicateStage
|
|
let my_keypair = Keypair::new();
|
|
let my_id = my_keypair.pubkey();
|
|
let vote_keypair = Keypair::new();
|
|
let my_node = Node::new_localhost_with_pubkey(my_id);
|
|
// Set up the cluster info
|
|
let cluster_info_me = Arc::new(RwLock::new(ClusterInfo::new(my_node.info.clone())));
|
|
let (entry_sender, entry_receiver) = channel();
|
|
let (ledger_entry_sender, _ledger_entry_receiver) = channel();
|
|
let mut last_entry_id = Hash::default();
|
|
// Create keypair for the old leader
|
|
let old_leader_id = Keypair::new().pubkey();
|
|
|
|
let (_, my_ledger_path, _) = create_tmp_sample_ledger(
|
|
"test_replicate_stage_leader_rotation_exit",
|
|
10_000,
|
|
0,
|
|
old_leader_id,
|
|
500,
|
|
);
|
|
|
|
let mut entry_height = 0;
|
|
let mut last_id = Hash::default();
|
|
let mut entries = Vec::new();
|
|
for _ in 0..5 {
|
|
let entry = Entry::new(&mut last_id, 1, vec![]); //just ticks
|
|
last_id = entry.id;
|
|
entries.push(entry);
|
|
}
|
|
entry_sender
|
|
.send(entries.clone())
|
|
.expect("Expected to err out");
|
|
|
|
let res = ReplicateStage::replicate_requests(
|
|
&Arc::new(Bank::default()),
|
|
&cluster_info_me,
|
|
&entry_receiver,
|
|
&Arc::new(my_keypair),
|
|
&Arc::new(vote_keypair),
|
|
None,
|
|
&ledger_entry_sender,
|
|
&mut entry_height,
|
|
&mut last_entry_id,
|
|
);
|
|
|
|
match res {
|
|
Ok(_) => (),
|
|
Err(e) => assert!(false, "Entries were not sent correctly {:?}", e),
|
|
}
|
|
|
|
entries.clear();
|
|
for _ in 0..5 {
|
|
let entry = Entry::new(&mut Hash::default(), 0, vec![]); //just broken entries
|
|
entries.push(entry);
|
|
}
|
|
entry_sender
|
|
.send(entries.clone())
|
|
.expect("Expected to err out");
|
|
|
|
let res = ReplicateStage::replicate_requests(
|
|
&Arc::new(Bank::default()),
|
|
&cluster_info_me,
|
|
&entry_receiver,
|
|
&Arc::new(Keypair::new()),
|
|
&Arc::new(Keypair::new()),
|
|
None,
|
|
&ledger_entry_sender,
|
|
&mut entry_height,
|
|
&mut last_entry_id,
|
|
);
|
|
|
|
match res {
|
|
Ok(_) => assert!(false, "Should have failed because entries are broken"),
|
|
Err(Error::BlobError(BlobError::VerificationFailed)) => (),
|
|
Err(e) => assert!(
|
|
false,
|
|
"Should have failed because with blob error, instead, got {:?}",
|
|
e
|
|
),
|
|
}
|
|
|
|
let _ignored = remove_dir_all(&my_ledger_path);
|
|
}
|
|
}
|