602 lines
21 KiB
Rust
602 lines
21 KiB
Rust
//! `window_service` handles the data plane incoming shreds, storing them in
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//! blockstore and retransmitting where required
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//!
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use {
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crate::{
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ancestor_hashes_service::AncestorHashesReplayUpdateReceiver,
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cluster_info_vote_listener::VerifiedVoteReceiver,
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completed_data_sets_service::CompletedDataSetsSender,
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repair_response,
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repair_service::{DumpedSlotsReceiver, OutstandingShredRepairs, RepairInfo, RepairService},
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result::{Error, Result},
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},
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crossbeam_channel::{unbounded, Receiver, RecvTimeoutError, Sender},
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rayon::{prelude::*, ThreadPool},
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solana_gossip::cluster_info::ClusterInfo,
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solana_ledger::{
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blockstore::{Blockstore, BlockstoreInsertionMetrics},
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leader_schedule_cache::LeaderScheduleCache,
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shred::{self, Nonce, ReedSolomonCache, Shred},
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},
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solana_measure::measure::Measure,
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solana_metrics::inc_new_counter_error,
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solana_perf::packet::{Packet, PacketBatch},
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solana_rayon_threadlimit::get_thread_count,
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solana_sdk::clock::Slot,
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std::{
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cmp::Reverse,
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collections::{HashMap, HashSet},
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net::{SocketAddr, UdpSocket},
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sync::{
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atomic::{AtomicBool, Ordering},
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Arc, RwLock,
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},
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thread::{self, Builder, JoinHandle},
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time::{Duration, Instant},
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},
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};
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type ShredPayload = Vec<u8>;
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type DuplicateSlotSender = Sender<Slot>;
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pub(crate) type DuplicateSlotReceiver = Receiver<Slot>;
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#[derive(Default)]
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struct WindowServiceMetrics {
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run_insert_count: u64,
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num_packets: usize,
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num_repairs: usize,
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num_shreds_received: usize,
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handle_packets_elapsed_us: u64,
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shred_receiver_elapsed_us: u64,
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prune_shreds_elapsed_us: u64,
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num_shreds_pruned_invalid_repair: usize,
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num_errors: u64,
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num_errors_blockstore: u64,
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num_errors_cross_beam_recv_timeout: u64,
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num_errors_other: u64,
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num_errors_try_crossbeam_send: u64,
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addrs: HashMap</*source:*/ SocketAddr, /*num packets:*/ usize>,
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}
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impl WindowServiceMetrics {
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fn report_metrics(&self, metric_name: &'static str) {
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const MAX_NUM_ADDRS: usize = 5;
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datapoint_info!(
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metric_name,
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(
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"handle_packets_elapsed_us",
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self.handle_packets_elapsed_us,
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i64
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),
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("run_insert_count", self.run_insert_count as i64, i64),
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("num_packets", self.num_packets, i64),
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("num_repairs", self.num_repairs, i64),
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("num_shreds_received", self.num_shreds_received, i64),
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(
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"shred_receiver_elapsed_us",
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self.shred_receiver_elapsed_us as i64,
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i64
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),
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(
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"prune_shreds_elapsed_us",
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self.prune_shreds_elapsed_us as i64,
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i64
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),
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(
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"num_shreds_pruned_invalid_repair",
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self.num_shreds_pruned_invalid_repair,
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i64
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),
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("num_errors", self.num_errors, i64),
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("num_errors_blockstore", self.num_errors_blockstore, i64),
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("num_errors_other", self.num_errors_other, i64),
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(
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"num_errors_try_crossbeam_send",
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self.num_errors_try_crossbeam_send,
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i64
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),
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(
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"num_errors_cross_beam_recv_timeout",
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self.num_errors_cross_beam_recv_timeout,
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i64
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),
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);
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let mut addrs: Vec<_> = self.addrs.iter().collect();
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let reverse_count = |(_addr, count): &_| Reverse(*count);
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if addrs.len() > MAX_NUM_ADDRS {
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addrs.select_nth_unstable_by_key(MAX_NUM_ADDRS, reverse_count);
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addrs.truncate(MAX_NUM_ADDRS);
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}
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addrs.sort_unstable_by_key(reverse_count);
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info!(
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"num addresses: {}, top packets by source: {:?}",
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self.addrs.len(),
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addrs
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);
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}
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fn record_error(&mut self, err: &Error) {
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self.num_errors += 1;
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match err {
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Error::TrySend => self.num_errors_try_crossbeam_send += 1,
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Error::RecvTimeout(_) => self.num_errors_cross_beam_recv_timeout += 1,
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Error::Blockstore(err) => {
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self.num_errors_blockstore += 1;
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error!("blockstore error: {}", err);
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}
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_ => self.num_errors_other += 1,
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}
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}
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}
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fn run_check_duplicate(
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cluster_info: &ClusterInfo,
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blockstore: &Blockstore,
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shred_receiver: &Receiver<Shred>,
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duplicate_slots_sender: &DuplicateSlotSender,
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) -> Result<()> {
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let check_duplicate = |shred: Shred| -> Result<()> {
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let shred_slot = shred.slot();
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if !blockstore.has_duplicate_shreds_in_slot(shred_slot) {
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if let Some(existing_shred_payload) =
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blockstore.is_shred_duplicate(shred.id(), shred.payload().clone())
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{
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cluster_info.push_duplicate_shred(&shred, &existing_shred_payload)?;
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blockstore.store_duplicate_slot(
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shred_slot,
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existing_shred_payload,
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shred.into_payload(),
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)?;
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duplicate_slots_sender.send(shred_slot)?;
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}
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}
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Ok(())
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};
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const RECV_TIMEOUT: Duration = Duration::from_millis(200);
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std::iter::once(shred_receiver.recv_timeout(RECV_TIMEOUT)?)
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.chain(shred_receiver.try_iter())
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.try_for_each(check_duplicate)
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}
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fn verify_repair(
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outstanding_requests: &mut OutstandingShredRepairs,
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shred: &Shred,
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repair_meta: &Option<RepairMeta>,
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) -> bool {
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repair_meta
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.as_ref()
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.map(|repair_meta| {
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outstanding_requests
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.register_response(
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repair_meta.nonce,
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shred,
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solana_sdk::timing::timestamp(),
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|_| (),
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)
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.is_some()
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})
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.unwrap_or(true)
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}
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fn prune_shreds_invalid_repair(
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shreds: &mut Vec<Shred>,
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repair_infos: &mut Vec<Option<RepairMeta>>,
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outstanding_requests: &RwLock<OutstandingShredRepairs>,
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) {
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assert_eq!(shreds.len(), repair_infos.len());
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let mut i = 0;
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let mut removed = HashSet::new();
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{
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let mut outstanding_requests = outstanding_requests.write().unwrap();
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shreds.retain(|shred| {
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let should_keep = (
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verify_repair(&mut outstanding_requests, shred, &repair_infos[i]),
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i += 1,
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)
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.0;
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if !should_keep {
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removed.insert(i - 1);
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}
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should_keep
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});
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}
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i = 0;
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repair_infos.retain(|_repair_info| (!removed.contains(&i), i += 1).0);
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assert_eq!(shreds.len(), repair_infos.len());
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}
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#[allow(clippy::too_many_arguments)]
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fn run_insert<F>(
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thread_pool: &ThreadPool,
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verified_receiver: &Receiver<Vec<PacketBatch>>,
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blockstore: &Blockstore,
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leader_schedule_cache: &LeaderScheduleCache,
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handle_duplicate: F,
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metrics: &mut BlockstoreInsertionMetrics,
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ws_metrics: &mut WindowServiceMetrics,
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completed_data_sets_sender: &CompletedDataSetsSender,
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retransmit_sender: &Sender<Vec<ShredPayload>>,
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outstanding_requests: &RwLock<OutstandingShredRepairs>,
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reed_solomon_cache: &ReedSolomonCache,
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) -> Result<()>
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where
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F: Fn(Shred),
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{
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const RECV_TIMEOUT: Duration = Duration::from_millis(200);
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let mut shred_receiver_elapsed = Measure::start("shred_receiver_elapsed");
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let mut packets = verified_receiver.recv_timeout(RECV_TIMEOUT)?;
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packets.extend(verified_receiver.try_iter().flatten());
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shred_receiver_elapsed.stop();
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ws_metrics.shred_receiver_elapsed_us += shred_receiver_elapsed.as_us();
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ws_metrics.run_insert_count += 1;
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let handle_packet = |packet: &Packet| {
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if packet.meta().discard() {
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return None;
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}
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let shred = shred::layout::get_shred(packet)?;
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let shred = Shred::new_from_serialized_shred(shred.to_vec()).ok()?;
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if packet.meta().repair() {
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let repair_info = RepairMeta {
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// If can't parse the nonce, dump the packet.
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nonce: repair_response::nonce(packet)?,
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};
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Some((shred, Some(repair_info)))
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} else {
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Some((shred, None))
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}
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};
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let now = Instant::now();
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let (mut shreds, mut repair_infos): (Vec<_>, Vec<_>) = thread_pool.install(|| {
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packets
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.par_iter()
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.flat_map_iter(|packets| packets.iter().filter_map(handle_packet))
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.unzip()
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});
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ws_metrics.handle_packets_elapsed_us += now.elapsed().as_micros() as u64;
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ws_metrics.num_packets += packets.iter().map(PacketBatch::len).sum::<usize>();
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ws_metrics.num_repairs += repair_infos.iter().filter(|r| r.is_some()).count();
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ws_metrics.num_shreds_received += shreds.len();
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for packet in packets.iter().flat_map(PacketBatch::iter) {
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let addr = packet.meta().socket_addr();
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*ws_metrics.addrs.entry(addr).or_default() += 1;
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}
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let mut prune_shreds_elapsed = Measure::start("prune_shreds_elapsed");
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let num_shreds = shreds.len();
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prune_shreds_invalid_repair(&mut shreds, &mut repair_infos, outstanding_requests);
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ws_metrics.num_shreds_pruned_invalid_repair = num_shreds - shreds.len();
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let repairs: Vec<_> = repair_infos
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.iter()
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.map(|repair_info| repair_info.is_some())
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.collect();
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prune_shreds_elapsed.stop();
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ws_metrics.prune_shreds_elapsed_us += prune_shreds_elapsed.as_us();
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let completed_data_sets = blockstore.insert_shreds_handle_duplicate(
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shreds,
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repairs,
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Some(leader_schedule_cache),
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false, // is_trusted
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Some(retransmit_sender),
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&handle_duplicate,
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reed_solomon_cache,
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metrics,
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)?;
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completed_data_sets_sender.try_send(completed_data_sets)?;
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Ok(())
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}
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struct RepairMeta {
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nonce: Nonce,
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}
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pub(crate) struct WindowService {
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t_insert: JoinHandle<()>,
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t_check_duplicate: JoinHandle<()>,
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repair_service: RepairService,
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}
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impl WindowService {
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#[allow(clippy::too_many_arguments)]
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pub(crate) fn new(
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blockstore: Arc<Blockstore>,
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verified_receiver: Receiver<Vec<PacketBatch>>,
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retransmit_sender: Sender<Vec<ShredPayload>>,
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repair_socket: Arc<UdpSocket>,
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ancestor_hashes_socket: Arc<UdpSocket>,
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exit: Arc<AtomicBool>,
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repair_info: RepairInfo,
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leader_schedule_cache: Arc<LeaderScheduleCache>,
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verified_vote_receiver: VerifiedVoteReceiver,
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completed_data_sets_sender: CompletedDataSetsSender,
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duplicate_slots_sender: DuplicateSlotSender,
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ancestor_hashes_replay_update_receiver: AncestorHashesReplayUpdateReceiver,
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dumped_slots_receiver: DumpedSlotsReceiver,
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) -> WindowService {
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let outstanding_requests = Arc::<RwLock<OutstandingShredRepairs>>::default();
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let cluster_info = repair_info.cluster_info.clone();
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let repair_service = RepairService::new(
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blockstore.clone(),
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exit.clone(),
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repair_socket,
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ancestor_hashes_socket,
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repair_info,
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verified_vote_receiver,
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outstanding_requests.clone(),
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ancestor_hashes_replay_update_receiver,
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dumped_slots_receiver,
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);
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let (duplicate_sender, duplicate_receiver) = unbounded();
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let t_check_duplicate = Self::start_check_duplicate_thread(
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cluster_info,
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exit.clone(),
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blockstore.clone(),
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duplicate_receiver,
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duplicate_slots_sender,
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);
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let t_insert = Self::start_window_insert_thread(
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exit,
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blockstore,
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leader_schedule_cache,
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verified_receiver,
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duplicate_sender,
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completed_data_sets_sender,
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retransmit_sender,
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outstanding_requests,
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);
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WindowService {
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t_insert,
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t_check_duplicate,
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repair_service,
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}
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}
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fn start_check_duplicate_thread(
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cluster_info: Arc<ClusterInfo>,
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exit: Arc<AtomicBool>,
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blockstore: Arc<Blockstore>,
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duplicate_receiver: Receiver<Shred>,
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duplicate_slots_sender: DuplicateSlotSender,
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) -> JoinHandle<()> {
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let handle_error = || {
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inc_new_counter_error!("solana-check-duplicate-error", 1, 1);
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};
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Builder::new()
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.name("solWinCheckDup".to_string())
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.spawn(move || {
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while !exit.load(Ordering::Relaxed) {
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if let Err(e) = run_check_duplicate(
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&cluster_info,
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&blockstore,
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&duplicate_receiver,
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&duplicate_slots_sender,
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) {
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if Self::should_exit_on_error(e, &handle_error) {
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break;
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}
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}
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}
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})
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.unwrap()
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}
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fn start_window_insert_thread(
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exit: Arc<AtomicBool>,
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blockstore: Arc<Blockstore>,
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leader_schedule_cache: Arc<LeaderScheduleCache>,
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verified_receiver: Receiver<Vec<PacketBatch>>,
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check_duplicate_sender: Sender<Shred>,
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completed_data_sets_sender: CompletedDataSetsSender,
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retransmit_sender: Sender<Vec<ShredPayload>>,
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outstanding_requests: Arc<RwLock<OutstandingShredRepairs>>,
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) -> JoinHandle<()> {
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let handle_error = || {
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inc_new_counter_error!("solana-window-insert-error", 1, 1);
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};
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let thread_pool = rayon::ThreadPoolBuilder::new()
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.num_threads(get_thread_count().min(8))
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.thread_name(|i| format!("solWinInsert{i:02}"))
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.build()
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.unwrap();
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let reed_solomon_cache = ReedSolomonCache::default();
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Builder::new()
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.name("solWinInsert".to_string())
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.spawn(move || {
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let handle_duplicate = |shred| {
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let _ = check_duplicate_sender.send(shred);
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};
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let mut metrics = BlockstoreInsertionMetrics::default();
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let mut ws_metrics = WindowServiceMetrics::default();
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let mut last_print = Instant::now();
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while !exit.load(Ordering::Relaxed) {
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if let Err(e) = run_insert(
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&thread_pool,
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&verified_receiver,
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&blockstore,
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&leader_schedule_cache,
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handle_duplicate,
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&mut metrics,
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&mut ws_metrics,
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&completed_data_sets_sender,
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&retransmit_sender,
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&outstanding_requests,
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&reed_solomon_cache,
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) {
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ws_metrics.record_error(&e);
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if Self::should_exit_on_error(e, &handle_error) {
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break;
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}
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}
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if last_print.elapsed().as_secs() > 2 {
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metrics.report_metrics("blockstore-insert-shreds");
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metrics = BlockstoreInsertionMetrics::default();
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ws_metrics.report_metrics("recv-window-insert-shreds");
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ws_metrics = WindowServiceMetrics::default();
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last_print = Instant::now();
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}
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}
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})
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.unwrap()
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}
|
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|
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fn should_exit_on_error<H>(e: Error, handle_error: &H) -> bool
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where
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H: Fn(),
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{
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match e {
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Error::RecvTimeout(RecvTimeoutError::Disconnected) => true,
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Error::RecvTimeout(RecvTimeoutError::Timeout) => false,
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Error::Send => true,
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_ => {
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handle_error();
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error!("thread {:?} error {:?}", thread::current().name(), e);
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false
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}
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}
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}
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pub(crate) fn join(self) -> thread::Result<()> {
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self.t_insert.join()?;
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self.t_check_duplicate.join()?;
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self.repair_service.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 {
|
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super::*,
|
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solana_entry::entry::{create_ticks, Entry},
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solana_gossip::contact_info::ContactInfo,
|
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solana_ledger::{
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blockstore::{make_many_slot_entries, Blockstore},
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get_tmp_ledger_path,
|
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shred::{ProcessShredsStats, Shredder},
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},
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solana_sdk::{
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hash::Hash,
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signature::{Keypair, Signer},
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timing::timestamp,
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},
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solana_streamer::socket::SocketAddrSpace,
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};
|
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|
|
fn local_entries_to_shred(
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entries: &[Entry],
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slot: Slot,
|
|
parent: Slot,
|
|
keypair: &Keypair,
|
|
) -> Vec<Shred> {
|
|
let shredder = Shredder::new(slot, parent, 0, 0).unwrap();
|
|
let (data_shreds, _) = shredder.entries_to_shreds(
|
|
keypair,
|
|
entries,
|
|
true, // is_last_in_slot
|
|
0, // next_shred_index
|
|
0, // next_code_index
|
|
true, // merkle_variant
|
|
&ReedSolomonCache::default(),
|
|
&mut ProcessShredsStats::default(),
|
|
);
|
|
data_shreds
|
|
}
|
|
|
|
#[test]
|
|
fn test_process_shred() {
|
|
let blockstore_path = get_tmp_ledger_path!();
|
|
let blockstore = Arc::new(Blockstore::open(&blockstore_path).unwrap());
|
|
let num_entries = 10;
|
|
let original_entries = create_ticks(num_entries, 0, Hash::default());
|
|
let mut shreds = local_entries_to_shred(&original_entries, 0, 0, &Keypair::new());
|
|
shreds.reverse();
|
|
blockstore
|
|
.insert_shreds(shreds, None, false)
|
|
.expect("Expect successful processing of shred");
|
|
|
|
assert_eq!(blockstore.get_slot_entries(0, 0).unwrap(), original_entries);
|
|
|
|
drop(blockstore);
|
|
Blockstore::destroy(&blockstore_path).expect("Expected successful database destruction");
|
|
}
|
|
|
|
#[test]
|
|
fn test_run_check_duplicate() {
|
|
let blockstore_path = get_tmp_ledger_path!();
|
|
let blockstore = Arc::new(Blockstore::open(&blockstore_path).unwrap());
|
|
let (sender, receiver) = unbounded();
|
|
let (duplicate_slot_sender, duplicate_slot_receiver) = unbounded();
|
|
let (shreds, _) = make_many_slot_entries(5, 5, 10);
|
|
blockstore
|
|
.insert_shreds(shreds.clone(), None, false)
|
|
.unwrap();
|
|
let duplicate_shred = {
|
|
let (mut shreds, _) = make_many_slot_entries(5, 1, 10);
|
|
shreds.swap_remove(0)
|
|
};
|
|
assert_eq!(duplicate_shred.slot(), shreds[0].slot());
|
|
let duplicate_shred_slot = duplicate_shred.slot();
|
|
sender.send(duplicate_shred).unwrap();
|
|
assert!(!blockstore.has_duplicate_shreds_in_slot(duplicate_shred_slot));
|
|
let keypair = Keypair::new();
|
|
let contact_info = ContactInfo::new_localhost(&keypair.pubkey(), timestamp());
|
|
let cluster_info = ClusterInfo::new(
|
|
contact_info,
|
|
Arc::new(keypair),
|
|
SocketAddrSpace::Unspecified,
|
|
);
|
|
run_check_duplicate(
|
|
&cluster_info,
|
|
&blockstore,
|
|
&receiver,
|
|
&duplicate_slot_sender,
|
|
)
|
|
.unwrap();
|
|
assert!(blockstore.has_duplicate_shreds_in_slot(duplicate_shred_slot));
|
|
assert_eq!(
|
|
duplicate_slot_receiver.try_recv().unwrap(),
|
|
duplicate_shred_slot
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn test_prune_shreds() {
|
|
use crate::serve_repair::ShredRepairType;
|
|
solana_logger::setup();
|
|
let shred = Shred::new_from_parity_shard(
|
|
5, // slot
|
|
5, // index
|
|
&[], // parity_shard
|
|
5, // fec_set_index
|
|
6, // num_data_shreds
|
|
6, // num_coding_shreds
|
|
4, // position
|
|
0, // version
|
|
);
|
|
let mut shreds = vec![shred.clone(), shred.clone(), shred];
|
|
let repair_meta = RepairMeta { nonce: 0 };
|
|
let outstanding_requests = Arc::new(RwLock::new(OutstandingShredRepairs::default()));
|
|
let repair_type = ShredRepairType::Orphan(9);
|
|
let nonce = outstanding_requests
|
|
.write()
|
|
.unwrap()
|
|
.add_request(repair_type, timestamp());
|
|
let repair_meta1 = RepairMeta { nonce };
|
|
let mut repair_infos = vec![None, Some(repair_meta), Some(repair_meta1)];
|
|
prune_shreds_invalid_repair(&mut shreds, &mut repair_infos, &outstanding_requests);
|
|
assert_eq!(repair_infos.len(), 2);
|
|
assert!(repair_infos[0].is_none());
|
|
assert_eq!(repair_infos[1].as_ref().unwrap().nonce, nonce);
|
|
}
|
|
}
|