130 lines
3.9 KiB
Rust
130 lines
3.9 KiB
Rust
//! The `retransmit_stage` retransmits blobs between validators
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use cluster_info::ClusterInfo;
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use counter::Counter;
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use db_ledger::DbLedger;
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use entry::Entry;
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use leader_scheduler::LeaderScheduler;
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use log::Level;
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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 std::net::UdpSocket;
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use std::sync::atomic::{AtomicBool, AtomicUsize};
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use std::sync::mpsc::RecvTimeoutError;
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use std::sync::mpsc::{channel, Receiver};
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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 streamer::BlobReceiver;
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use window_service::window_service;
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fn retransmit(
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cluster_info: &Arc<RwLock<ClusterInfo>>,
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r: &BlobReceiver,
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sock: &UdpSocket,
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) -> Result<()> {
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let timer = Duration::new(1, 0);
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let mut dq = r.recv_timeout(timer)?;
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while let Ok(mut nq) = r.try_recv() {
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dq.append(&mut nq);
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}
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submit(
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influxdb::Point::new("retransmit-stage")
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.add_field("count", influxdb::Value::Integer(dq.len() as i64))
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.to_owned(),
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);
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for b in &mut dq {
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ClusterInfo::retransmit(&cluster_info, b, sock)?;
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}
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Ok(())
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}
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/// Service to retransmit messages from the leader to layer 1 nodes.
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/// See `cluster_info` for network layer definitions.
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/// # Arguments
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/// * `sock` - Socket to read from. Read timeout is set to 1.
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/// * `exit` - Boolean to signal system exit.
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/// * `cluster_info` - This structure needs to be updated and populated by the bank and via gossip.
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/// * `recycler` - Blob recycler.
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/// * `r` - Receive channel for blobs to be retransmitted to all the layer 1 nodes.
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fn retransmitter(
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sock: Arc<UdpSocket>,
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cluster_info: Arc<RwLock<ClusterInfo>>,
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r: BlobReceiver,
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) -> JoinHandle<()> {
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Builder::new()
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.name("solana-retransmitter".to_string())
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.spawn(move || {
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trace!("retransmitter started");
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loop {
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if let Err(e) = retransmit(&cluster_info, &r, &sock) {
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match e {
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Error::RecvTimeoutError(RecvTimeoutError::Disconnected) => break,
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Error::RecvTimeoutError(RecvTimeoutError::Timeout) => (),
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_ => {
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inc_new_counter_info!("streamer-retransmit-error", 1, 1);
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}
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}
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}
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}
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trace!("exiting retransmitter");
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})
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.unwrap()
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}
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pub struct RetransmitStage {
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thread_hdls: Vec<JoinHandle<()>>,
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}
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impl RetransmitStage {
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#[allow(clippy::new_ret_no_self)]
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pub fn new(
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db_ledger: Arc<RwLock<DbLedger>>,
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cluster_info: &Arc<RwLock<ClusterInfo>>,
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tick_height: u64,
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entry_height: u64,
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retransmit_socket: Arc<UdpSocket>,
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repair_socket: Arc<UdpSocket>,
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fetch_stage_receiver: BlobReceiver,
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leader_scheduler: Arc<RwLock<LeaderScheduler>>,
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) -> (Self, Receiver<Vec<Entry>>) {
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let (retransmit_sender, retransmit_receiver) = channel();
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let t_retransmit =
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retransmitter(retransmit_socket, cluster_info.clone(), retransmit_receiver);
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let (entry_sender, entry_receiver) = channel();
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let done = Arc::new(AtomicBool::new(false));
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let t_window = window_service(
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db_ledger,
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cluster_info.clone(),
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tick_height,
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entry_height,
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0,
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fetch_stage_receiver,
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entry_sender,
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retransmit_sender,
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repair_socket,
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leader_scheduler,
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done,
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);
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let thread_hdls = vec![t_retransmit, t_window];
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(Self { thread_hdls }, entry_receiver)
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}
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}
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impl Service for RetransmitStage {
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type JoinReturnType = ();
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fn join(self) -> thread::Result<()> {
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for thread_hdl in self.thread_hdls {
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thread_hdl.join()?;
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}
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Ok(())
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}
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}
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