[dep-upgrade-202402] fix shutdown issue introduced when upgrading hyper
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This commit is contained in:
Alex 2024-02-08 23:43:59 +01:00
parent bcbd15da84
commit 5c63193d1d
Signed by: lx
GPG key ID: 0E496D15096376BE
6 changed files with 71 additions and 60 deletions

View file

@ -3,9 +3,9 @@ use std::sync::Arc;
use async_trait::async_trait;
use futures::future::Future;
use http::header::{ACCESS_CONTROL_ALLOW_METHODS, ACCESS_CONTROL_ALLOW_ORIGIN, ALLOW};
use hyper::{body::Incoming as IncomingBody, Request, Response, StatusCode};
use tokio::sync::watch;
use opentelemetry::trace::SpanRef;
@ -65,11 +65,11 @@ impl AdminApiServer {
pub async fn run(
self,
bind_addr: UnixOrTCPSocketAddress,
shutdown_signal: impl Future<Output = ()>,
must_exit: watch::Receiver<bool>,
) -> Result<(), GarageError> {
let region = self.garage.config.s3_api.s3_region.clone();
ApiServer::new(region, self)
.run_server(bind_addr, Some(0o220), shutdown_signal)
.run_server(bind_addr, Some(0o220), must_exit)
.await
}

View file

@ -18,6 +18,7 @@ use hyper_util::rt::TokioIo;
use tokio::io::{AsyncRead, AsyncWrite};
use tokio::net::{TcpListener, TcpStream, UnixListener, UnixStream};
use tokio::sync::watch;
use opentelemetry::{
global,
@ -104,20 +105,17 @@ impl<A: ApiHandler> ApiServer<A> {
self: Arc<Self>,
bind_addr: UnixOrTCPSocketAddress,
unix_bind_addr_mode: Option<u32>,
shutdown_signal: impl Future<Output = ()>,
must_exit: watch::Receiver<bool>,
) -> Result<(), GarageError> {
info!(
"{} API server listening on {}",
A::API_NAME_DISPLAY,
bind_addr
);
let server_name = format!("{} API", A::API_NAME_DISPLAY);
info!("{} server listening on {}", server_name, bind_addr);
match bind_addr {
UnixOrTCPSocketAddress::TCPSocket(addr) => {
let listener = TcpListener::bind(addr).await?;
let handler = move |request, socketaddr| self.clone().handler(request, socketaddr);
server_loop(listener, handler, shutdown_signal).await
server_loop(server_name, listener, handler, must_exit).await
}
UnixOrTCPSocketAddress::UnixSocket(ref path) => {
if path.exists() {
@ -133,7 +131,7 @@ impl<A: ApiHandler> ApiServer<A> {
)?;
let handler = move |request, socketaddr| self.clone().handler(request, socketaddr);
server_loop(listener, handler, shutdown_signal).await
server_loop(server_name, listener, handler, must_exit).await
}
}
}
@ -278,9 +276,10 @@ impl Accept for UnixListenerOn {
}
pub async fn server_loop<A, H, F, E>(
server_name: String,
listener: A,
handler: H,
shutdown_signal: impl Future<Output = ()>,
mut must_exit: watch::Receiver<bool>,
) -> Result<(), GarageError>
where
A: Accept,
@ -288,42 +287,57 @@ where
F: Future<Output = Result<Response<BoxBody<E>>, http::Error>> + Send + 'static,
E: Send + Sync + std::error::Error + 'static,
{
tokio::pin!(shutdown_signal);
let (conn_in, mut conn_out) = tokio::sync::mpsc::unbounded_channel();
let connection_collector = tokio::spawn(async move {
let mut collection = FuturesUnordered::new();
loop {
let collect_next = async {
if collection.is_empty() {
futures::future::pending().await
} else {
collection.next().await
}
};
tokio::select! {
result = collect_next => {
trace!("HTTP connection finished: {:?}", result);
}
new_fut = conn_out.recv() => {
match new_fut {
Some(f) => collection.push(f),
None => break,
let connection_collector = tokio::spawn({
let server_name = server_name.clone();
async move {
let mut connections = FuturesUnordered::new();
loop {
let collect_next = async {
if connections.is_empty() {
futures::future::pending().await
} else {
connections.next().await
}
};
tokio::select! {
result = collect_next => {
trace!("{} server: HTTP connection finished: {:?}", server_name, result);
}
new_fut = conn_out.recv() => {
match new_fut {
Some(f) => connections.push(f),
None => break,
}
}
}
}
if !connections.is_empty() {
info!(
"{} server: {} connections still open",
server_name,
connections.len()
);
while let Some(conn_res) = connections.next().await {
trace!(
"{} server: HTTP connection finished: {:?}",
server_name,
conn_res
);
info!(
"{} server: {} connections still open",
server_name,
connections.len()
);
}
}
}
debug!("Collecting last open HTTP connections.");
while let Some(conn_res) = collection.next().await {
trace!("HTTP connection finished: {:?}", conn_res);
}
debug!("No more HTTP connections to collect");
});
loop {
while !*must_exit.borrow() {
let (stream, client_addr) = tokio::select! {
acc = listener.accept() => acc?,
_ = &mut shutdown_signal => break,
_ = must_exit.changed() => continue,
};
let io = TokioIo::new(stream);
@ -343,6 +357,8 @@ where
conn_in.send(fut)?;
}
info!("{} server exiting", server_name);
drop(conn_in);
connection_collector.await?;
Ok(())

View file

@ -2,8 +2,8 @@ use std::sync::Arc;
use async_trait::async_trait;
use futures::future::Future;
use hyper::{body::Incoming as IncomingBody, Method, Request, Response};
use tokio::sync::watch;
use opentelemetry::{trace::SpanRef, KeyValue};
@ -42,10 +42,10 @@ impl K2VApiServer {
garage: Arc<Garage>,
bind_addr: UnixOrTCPSocketAddress,
s3_region: String,
shutdown_signal: impl Future<Output = ()>,
must_exit: watch::Receiver<bool>,
) -> Result<(), GarageError> {
ApiServer::new(s3_region, K2VApiServer { garage })
.run_server(bind_addr, None, shutdown_signal)
.run_server(bind_addr, None, must_exit)
.await
}
}

View file

@ -2,9 +2,9 @@ use std::sync::Arc;
use async_trait::async_trait;
use futures::future::Future;
use hyper::header;
use hyper::{body::Incoming as IncomingBody, Request, Response};
use tokio::sync::watch;
use opentelemetry::{trace::SpanRef, KeyValue};
@ -51,10 +51,10 @@ impl S3ApiServer {
garage: Arc<Garage>,
addr: UnixOrTCPSocketAddress,
s3_region: String,
shutdown_signal: impl Future<Output = ()>,
must_exit: watch::Receiver<bool>,
) -> Result<(), GarageError> {
ApiServer::new(s3_region, S3ApiServer { garage })
.run_server(addr, None, shutdown_signal)
.run_server(addr, None, must_exit)
.await
}

View file

@ -88,7 +88,7 @@ pub async fn run_server(config_file: PathBuf, secrets: Secrets) -> Result<(), Er
garage.clone(),
s3_bind_addr.clone(),
config.s3_api.s3_region.clone(),
wait_from(watch_cancel.clone()),
watch_cancel.clone(),
)),
));
}
@ -103,7 +103,7 @@ pub async fn run_server(config_file: PathBuf, secrets: Secrets) -> Result<(), Er
garage.clone(),
config.k2v_api.as_ref().unwrap().api_bind_addr.clone(),
config.s3_api.s3_region.clone(),
wait_from(watch_cancel.clone()),
watch_cancel.clone(),
)),
));
}
@ -116,10 +116,7 @@ pub async fn run_server(config_file: PathBuf, secrets: Secrets) -> Result<(), Er
let web_server = WebServer::new(garage.clone(), web_config.root_domain.clone());
servers.push((
"Web",
tokio::spawn(web_server.run(
web_config.bind_addr.clone(),
wait_from(watch_cancel.clone()),
)),
tokio::spawn(web_server.run(web_config.bind_addr.clone(), watch_cancel.clone())),
));
}
@ -127,9 +124,7 @@ pub async fn run_server(config_file: PathBuf, secrets: Secrets) -> Result<(), Er
info!("Launching Admin API server...");
servers.push((
"Admin",
tokio::spawn(
admin_server.run(admin_bind_addr.clone(), wait_from(watch_cancel.clone())),
),
tokio::spawn(admin_server.run(admin_bind_addr.clone(), watch_cancel.clone())),
));
}

View file

@ -2,7 +2,8 @@ use std::fs::{self, Permissions};
use std::os::unix::prelude::PermissionsExt;
use std::{convert::Infallible, sync::Arc};
use futures::future::Future;
use tokio::net::{TcpListener, UnixListener};
use tokio::sync::watch;
use hyper::{
body::Incoming as IncomingBody,
@ -10,8 +11,6 @@ use hyper::{
Method, Request, Response, StatusCode,
};
use tokio::net::{TcpListener, UnixListener};
use opentelemetry::{
global,
metrics::{Counter, ValueRecorder},
@ -84,8 +83,9 @@ impl WebServer {
pub async fn run(
self: Arc<Self>,
bind_addr: UnixOrTCPSocketAddress,
shutdown_signal: impl Future<Output = ()>,
must_exit: watch::Receiver<bool>,
) -> Result<(), GarageError> {
let server_name = "Web".into();
info!("Web server listening on {}", bind_addr);
match bind_addr {
@ -94,7 +94,7 @@ impl WebServer {
let handler =
move |stream, socketaddr| self.clone().handle_request(stream, socketaddr);
server_loop(listener, handler, shutdown_signal).await
server_loop(server_name, listener, handler, must_exit).await
}
UnixOrTCPSocketAddress::UnixSocket(ref path) => {
if path.exists() {
@ -108,7 +108,7 @@ impl WebServer {
let handler =
move |stream, socketaddr| self.clone().handle_request(stream, socketaddr);
server_loop(listener, handler, shutdown_signal).await
server_loop(server_name, listener, handler, must_exit).await
}
}
}