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Reduce backoff and add some jitter to avoid thundering herd issues

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Co-Authored-By: Nathan Sobo <nathan@zed.dev>
This commit is contained in:
Antonio Scandurra 2021-09-09 17:00:18 +02:00
parent e2b56e8764
commit d08ec8bd53
1 changed files with 7 additions and 3 deletions
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10
zed/src/rpc.rs
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@ -5,6 +5,7 @@ use gpui::{AsyncAppContext, Entity, ModelContext, Task};
use lazy_static::lazy_static;
use parking_lot::RwLock;
use postage::{prelude::Stream, watch};
use rand::prelude::*;
use std::{
any::TypeId,
collections::HashMap,
@ -151,11 +152,12 @@ impl Client {
Status::ConnectionLost => {
let this = self.clone();
let foreground = cx.foreground();
let heartbeat_interval = state.heartbeat_interval;
state._maintain_connection = Some(cx.spawn(|cx| async move {
let mut delay_seconds = 5;
let mut rng = StdRng::from_entropy();
let mut delay = Duration::from_millis(100);
while let Err(error) = this.authenticate_and_connect(&cx).await {
log::error!("failed to connect {}", error);
let delay = Duration::from_secs(delay_seconds);
this.set_status(
Status::ReconnectionError {
next_reconnection: Instant::now() + delay,
@ -163,7 +165,9 @@ impl Client {
&cx,
);
foreground.timer(delay).await;
delay_seconds = (delay_seconds * 2).min(300);
delay = delay
.mul_f32(rng.gen_range(1.0..=2.0))
.min(heartbeat_interval);
}
}));
}