mirror of
https://github.com/actix/actix-web.git
synced 2024-08-01 18:25:04 +00:00
fix client connector wait queue
This commit is contained in:
Nikolay Kim
parent
373f2e5028
commit
85672d1379
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@ -46,8 +46,6 @@ pub struct ClientConnectorStats {
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pub errors: usize,
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/// Number of connection timeouts
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pub timeouts: usize,
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/// Number of released connections
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pub released: usize,
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}
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#[derive(Debug)]
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@ -413,14 +411,14 @@ impl ClientConnector {
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}
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if self.limit_per_host > 0 {
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if let Some(per_host) = self.acquired_per_host.get(key) {
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if self.limit_per_host >= *per_host {
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if *per_host >= self.limit_per_host {
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return Acquire::NotAvailable;
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}
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}
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}
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} else if self.limit_per_host > 0 {
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if let Some(per_host) = self.acquired_per_host.get(key) {
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if self.limit_per_host >= *per_host {
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if *per_host >= self.limit_per_host {
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return Acquire::NotAvailable;
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}
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}
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@ -469,7 +467,9 @@ impl ClientConnector {
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}
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fn release_key(&mut self, key: &Key) {
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self.acquired -= 1;
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if self.acquired > 0 {
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self.acquired -= 1;
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}
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let per_host = if let Some(per_host) = self.acquired_per_host.get(key) {
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*per_host
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} else {
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@ -514,23 +514,23 @@ impl ClientConnector {
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let mut next = None;
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for waiters in self.waiters.as_mut().unwrap().values_mut() {
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let mut idx = 0;
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while idx < waiters.len() {
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if waiters[idx].wait <= now {
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let mut new_waiters = VecDeque::new();
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while let Some(waiter) = waiters.pop_front() {
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if waiter.wait <= now {
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self.stats.timeouts += 1;
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let waiter = waiters.swap_remove_back(idx).unwrap();
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let _ = waiter.tx.send(Err(ClientConnectorError::Timeout));
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} else {
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if let Some(n) = next {
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if waiters[idx].wait < n {
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next = Some(waiters[idx].wait);
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if waiter.wait < n {
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next = Some(waiter.wait);
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}
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} else {
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next = Some(waiters[idx].wait);
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next = Some(waiter.wait);
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}
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idx += 1;
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new_waiters.push_back(waiter);
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}
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}
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*waiters = new_waiters;
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}
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if next.is_some() {
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@ -573,20 +573,56 @@ impl ClientConnector {
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rx
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}
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fn connect_waiter(&mut self, key: Key, waiter: Waiter, ctx: &mut Context<Self>) {
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let conn = AcquiredConn(key, Some(self.acq_tx.clone()));
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fn check_availibility(&mut self, ctx: &mut Context<ClientConnector>) {
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// check waiters
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let mut act_waiters = self.waiters.take().unwrap();
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for (key, ref mut waiters) in &mut act_waiters {
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while let Some(waiter) = waiters.pop_front() {
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if waiter.tx.is_canceled() {
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continue;
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}
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match self.acquire(key) {
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Acquire::Acquired(mut conn) => {
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// use existing connection
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self.stats.reused += 1;
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conn.pool =
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Some(AcquiredConn(key.clone(), Some(self.acq_tx.clone())));
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let _ = waiter.tx.send(Ok(conn));
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}
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Acquire::NotAvailable => {
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waiters.push_front(waiter);
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break;
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}
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Acquire::Available => {
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// create new connection
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self.connect_waiter(key.clone(), waiter, ctx);
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}
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}
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}
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}
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self.waiters = Some(act_waiters);
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}
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fn connect_waiter(&mut self, key: Key, waiter: Waiter, ctx: &mut Context<Self>) {
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let conn = AcquiredConn(key.clone(), Some(self.acq_tx.clone()));
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let key2 = key.clone();
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fut::WrapFuture::<ClientConnector>::actfuture(
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self.resolver.as_ref().unwrap().send(
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ResolveConnect::host_and_port(&conn.0.host, conn.0.port)
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.timeout(waiter.conn_timeout),
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),
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).map_err(|_, _, _| ())
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).map_err(move |_, act, _| {
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act.release_key(&key2);
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()
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})
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.and_then(move |res, act, _| {
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#[cfg(feature = "alpn")]
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match res {
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Err(err) => {
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act.stats.errors += 1;
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let _ = waiter.tx.send(Err(err.into()));
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fut::Either::B(fut::err(()))
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}
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@ -596,7 +632,8 @@ impl ClientConnector {
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fut::Either::A(
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act.connector
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.connect_async(&key.host, stream)
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.then(move |res| {
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.into_actor(act)
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.then(move |res, act, _| {
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match res {
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Err(e) => {
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let _ = waiter.tx.send(Err(
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@ -612,9 +649,8 @@ impl ClientConnector {
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)));
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}
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}
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Ok(())
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})
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.into_actor(act),
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fut::ok(())
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}),
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)
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} else {
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let _ = waiter.tx.send(Ok(Connection::new(
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@ -630,7 +666,6 @@ impl ClientConnector {
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#[cfg(all(feature = "tls", not(feature = "alpn")))]
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match res {
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Err(err) => {
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act.stats.errors += 1;
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let _ = waiter.tx.send(Err(err.into()));
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fut::Either::B(fut::err(()))
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}
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@ -640,7 +675,8 @@ impl ClientConnector {
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fut::Either::A(
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act.connector
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.connect_async(&conn.0.host, stream)
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.then(|res| {
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.into_actor(act)
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.then(move |res, _, _| {
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match res {
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Err(e) => {
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let _ = waiter.tx.send(Err(
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@ -656,9 +692,8 @@ impl ClientConnector {
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)));
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}
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}
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Ok(())
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})
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.into_actor(act),
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fut::ok(())
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}),
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)
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} else {
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let _ = waiter.tx.send(Ok(Connection::new(
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@ -674,7 +709,6 @@ impl ClientConnector {
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#[cfg(not(any(feature = "alpn", feature = "tls")))]
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match res {
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Err(err) => {
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act.stats.errors += 1;
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let _ = waiter.tx.send(Err(err.into()));
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fut::err(())
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}
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@ -725,7 +759,7 @@ impl Handler<Resume> for ClientConnector {
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impl Handler<Connect> for ClientConnector {
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type Result = ActorResponse<ClientConnector, Connection, ClientConnectorError>;
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fn handle(&mut self, msg: Connect, _: &mut Self::Context) -> Self::Result {
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fn handle(&mut self, msg: Connect, ctx: &mut Self::Context) -> Self::Result {
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let uri = &msg.uri;
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let wait_timeout = msg.wait_timeout;
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let conn_timeout = msg.conn_timeout;
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@ -761,239 +795,142 @@ impl Handler<Connect> for ClientConnector {
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// check pause state
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if self.paused.is_paused() {
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let rx = self.wait_for(key, wait_timeout, conn_timeout);
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let rx = self.wait_for(key.clone(), wait_timeout, conn_timeout);
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self.stats.waits += 1;
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return ActorResponse::async(
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rx.map_err(|_| ClientConnectorError::Disconnected)
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.into_actor(self)
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.and_then(|res, _, _| match res {
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.and_then(move |res, act, ctx| match res {
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Ok(conn) => fut::ok(conn),
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Err(err) => fut::err(err),
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Err(err) => {
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match err {
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ClientConnectorError::Timeout => (),
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_ => {
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act.release_key(&key);
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}
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}
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act.stats.errors += 1;
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act.check_availibility(ctx);
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fut::err(err)
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}
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}),
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);
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}
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// do not re-use websockets connection
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if !proto.is_http() {
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let (tx, rx) = oneshot::channel();
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let wait = Instant::now() + wait_timeout;
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let waiter = Waiter {
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tx,
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wait,
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conn_timeout,
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};
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self.connect_waiter(key.clone(), waiter, ctx);
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return ActorResponse::async(
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rx.map_err(|_| ClientConnectorError::Disconnected)
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.into_actor(self)
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.and_then(move |res, act, ctx| match res {
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Ok(conn) => fut::ok(conn),
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Err(err) => {
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act.stats.errors += 1;
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act.release_key(&key);
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act.check_availibility(ctx);
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fut::err(err)
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}
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}),
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);
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}
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// acquire connection
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let pool = if proto.is_http() {
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match self.acquire(&key) {
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Acquire::Acquired(mut conn) => {
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// use existing connection
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conn.pool = Some(AcquiredConn(key, Some(self.acq_tx.clone())));
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self.stats.reused += 1;
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return ActorResponse::async(fut::ok(conn));
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}
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Acquire::NotAvailable => {
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// connection is not available, wait
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let rx = self.wait_for(key, wait_timeout, conn_timeout);
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self.stats.waits += 1;
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return ActorResponse::async(
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rx.map_err(|_| ClientConnectorError::Disconnected)
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.into_actor(self)
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.and_then(|res, _, _| match res {
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Ok(conn) => fut::ok(conn),
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Err(err) => fut::err(err),
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}),
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);
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}
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Acquire::Available => Some(self.acq_tx.clone()),
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match self.acquire(&key) {
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Acquire::Acquired(mut conn) => {
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// use existing connection
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conn.pool = Some(AcquiredConn(key, Some(self.acq_tx.clone())));
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self.stats.reused += 1;
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ActorResponse::async(fut::ok(conn))
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}
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} else {
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None
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};
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let conn = AcquiredConn(key, pool);
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Acquire::NotAvailable => {
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// connection is not available, wait
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let rx = self.wait_for(key.clone(), wait_timeout, conn_timeout);
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self.stats.waits += 1;
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{
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ActorResponse::async(
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self.resolver
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.as_ref()
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.unwrap()
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.send(
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ResolveConnect::host_and_port(&conn.0.host, port)
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.timeout(conn_timeout),
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)
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.into_actor(self)
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.map_err(|_, _, _| ClientConnectorError::Disconnected)
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.and_then(move |res, act, _| {
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#[cfg(feature = "alpn")]
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match res {
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ActorResponse::async(
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rx.map_err(|_| ClientConnectorError::Disconnected)
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.into_actor(self)
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.and_then(move |res, act, ctx| match res {
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Ok(conn) => fut::ok(conn),
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Err(err) => {
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act.stats.opened += 1;
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fut::Either::B(fut::err(err.into()))
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}
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Ok(stream) => {
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act.stats.opened += 1;
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if proto.is_secure() {
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fut::Either::A(
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act.connector
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.connect_async(&conn.0.host, stream)
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.map_err(ClientConnectorError::SslError)
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.map(|stream| {
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Connection::new(
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conn.0.clone(),
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Some(conn),
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Box::new(stream),
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)
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})
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.into_actor(act),
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)
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} else {
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fut::Either::B(fut::ok(Connection::new(
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conn.0.clone(),
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Some(conn),
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Box::new(stream),
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)))
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match err {
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ClientConnectorError::Timeout => (),
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_ => {
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act.release_key(&key);
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}
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}
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act.stats.errors += 1;
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act.check_availibility(ctx);
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fut::err(err)
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}
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}
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}),
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)
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}
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Acquire::Available => {
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let (tx, rx) = oneshot::channel();
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let wait = Instant::now() + wait_timeout;
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let waiter = Waiter {
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tx,
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wait,
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conn_timeout,
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};
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self.connect_waiter(key.clone(), waiter, ctx);
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#[cfg(all(feature = "tls", not(feature = "alpn")))]
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match res {
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ActorResponse::async(
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rx.map_err(|_| ClientConnectorError::Disconnected)
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.into_actor(self)
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.and_then(move |res, act, ctx| match res {
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Ok(conn) => fut::ok(conn),
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Err(err) => {
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act.stats.opened += 1;
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fut::Either::B(fut::err(err.into()))
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act.stats.errors += 1;
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act.release_key(&key);
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act.check_availibility(ctx);
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fut::err(err)
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}
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Ok(stream) => {
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act.stats.opened += 1;
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if proto.is_secure() {
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fut::Either::A(
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act.connector
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.connect_async(&conn.0.host, stream)
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.map_err(ClientConnectorError::SslError)
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.map(|stream| {
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Connection::new(
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conn.0.clone(),
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Some(conn),
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Box::new(stream),
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)
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})
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.into_actor(act),
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)
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} else {
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fut::Either::B(fut::ok(Connection::new(
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conn.0.clone(),
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Some(conn),
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Box::new(stream),
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)))
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}
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}
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}
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#[cfg(not(any(feature = "alpn", feature = "tls")))]
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match res {
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Err(err) => {
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act.stats.opened += 1;
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fut::err(err.into())
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}
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Ok(stream) => {
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act.stats.opened += 1;
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if proto.is_secure() {
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fut::err(ClientConnectorError::SslIsNotSupported)
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} else {
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fut::ok(Connection::new(
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conn.0.clone(),
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Some(conn),
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Box::new(stream),
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))
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}
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}
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}
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}),
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)
|
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}),
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)
|
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}
|
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}
|
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}
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}
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impl StreamHandler<AcquiredConnOperation, ()> for ClientConnector {
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fn handle(&mut self, msg: AcquiredConnOperation, ctx: &mut Context<Self>) {
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let now = Instant::now();
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self.stats.released += 1;
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// check if we have queued up waiters
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let waiter = {
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let key = match msg {
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AcquiredConnOperation::Close(ref conn) => &conn.key,
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AcquiredConnOperation::Release(ref conn) => &conn.key,
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AcquiredConnOperation::ReleaseKey(ref key) => key,
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};
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if let Some(ref mut waiters) = self.waiters.as_mut().unwrap().get_mut(key) {
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loop {
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if let Some(waiter) = waiters.pop_front() {
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if waiter.tx.is_canceled() {
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continue;
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}
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break Some(waiter);
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} else {
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break None;
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}
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}
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} else {
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None
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}
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};
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match msg {
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AcquiredConnOperation::Close(conn) => {
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if let Some(waiter) = waiter {
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// create new connection
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self.connect_waiter(conn.key.clone(), waiter, ctx);
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} else {
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self.release_key(&conn.key);
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}
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self.release_key(&conn.key);
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self.to_close.push(conn);
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self.stats.closed += 1;
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}
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AcquiredConnOperation::Release(mut conn) => {
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let alive = (Instant::now() - conn.ts) < self.conn_lifetime;
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|
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if let Some(waiter) = waiter {
|
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// check connection lifetime and the return to available pool
|
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if alive {
|
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// use existing connection
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self.stats.reused += 1;
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conn.pool = Some(AcquiredConn(
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conn.key.clone(),
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Some(self.acq_tx.clone()),
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));
|
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let _ = waiter.tx.send(Ok(conn));
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} else {
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// create new connection
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self.connect_waiter(conn.key.clone(), waiter, ctx);
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}
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AcquiredConnOperation::Release(conn) => {
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self.release_key(&conn.key);
|
||||
if (Instant::now() - conn.ts) < self.conn_lifetime {
|
||||
self.available
|
||||
.entry(conn.key.clone())
|
||||
.or_insert_with(VecDeque::new)
|
||||
.push_back(Conn(Instant::now(), conn));
|
||||
} else {
|
||||
self.release_key(&conn.key);
|
||||
if alive {
|
||||
self.available
|
||||
.entry(conn.key.clone())
|
||||
.or_insert_with(VecDeque::new)
|
||||
.push_back(Conn(Instant::now(), conn));
|
||||
}
|
||||
self.to_close.push(conn);
|
||||
self.stats.closed += 1;
|
||||
}
|
||||
}
|
||||
AcquiredConnOperation::ReleaseKey(key) => {
|
||||
if let Some(waiter) = waiter {
|
||||
// create new connection
|
||||
self.connect_waiter(key, waiter, ctx);
|
||||
} else {
|
||||
self.release_key(&key);
|
||||
}
|
||||
// closed
|
||||
self.stats.closed += 1;
|
||||
self.release_key(&key);
|
||||
}
|
||||
}
|
||||
|
||||
// check keep-alive
|
||||
for conns in self.available.values_mut() {
|
||||
while !conns.is_empty() {
|
||||
if (now > conns[0].0) && (now - conns[0].0) > self.conn_keep_alive
|
||||
|| (now - conns[0].1.ts) > self.conn_lifetime
|
||||
{
|
||||
let conn = conns.pop_front().unwrap().1;
|
||||
self.to_close.push(conn);
|
||||
self.stats.closed += 1;
|
||||
} else {
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
self.check_availibility(ctx);
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -1018,35 +955,8 @@ impl fut::ActorFuture for Maintenance {
|
|||
act.collect_waiters();
|
||||
|
||||
// check waiters
|
||||
let mut act_waiters = act.waiters.take().unwrap();
|
||||
act.check_availibility(ctx);
|
||||
|
||||
for (key, ref mut waiters) in &mut act_waiters {
|
||||
while let Some(waiter) = waiters.pop_front() {
|
||||
if waiter.tx.is_canceled() {
|
||||
continue;
|
||||
}
|
||||
|
||||
match act.acquire(key) {
|
||||
Acquire::Acquired(mut conn) => {
|
||||
// use existing connection
|
||||
act.stats.reused += 1;
|
||||
conn.pool =
|
||||
Some(AcquiredConn(key.clone(), Some(act.acq_tx.clone())));
|
||||
let _ = waiter.tx.send(Ok(conn));
|
||||
}
|
||||
Acquire::NotAvailable => {
|
||||
waiters.push_front(waiter);
|
||||
break;
|
||||
}
|
||||
Acquire::Available => {
|
||||
// create new connection
|
||||
act.connect_waiter(key.clone(), waiter, ctx);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
act.waiters = Some(act_waiters);
|
||||
Ok(Async::NotReady)
|
||||
}
|
||||
}
|
||||
|
|
@ -1181,14 +1091,14 @@ impl Connection {
|
|||
Connection::new(Key::empty(), None, Box::new(io))
|
||||
}
|
||||
|
||||
/// Close connection pool
|
||||
/// Close connection
|
||||
pub fn close(mut self) {
|
||||
if let Some(mut pool) = self.pool.take() {
|
||||
pool.close(self)
|
||||
}
|
||||
}
|
||||
|
||||
/// Release this connection from the connection pool
|
||||
/// Release this connection to the connection pool
|
||||
pub fn release(mut self) {
|
||||
if let Some(mut pool) = self.pool.take() {
|
||||
pool.release(self)
|
||||
|
|
|
|||
|
|
@ -17,7 +17,7 @@ use context::{ActorHttpContext, Frame};
|
|||
use error::Error;
|
||||
use error::PayloadError;
|
||||
use header::ContentEncoding;
|
||||
use http::Method;
|
||||
use http::{Method, Uri};
|
||||
use httpmessage::HttpMessage;
|
||||
use server::input::PayloadStream;
|
||||
use server::WriterState;
|
||||
|
|
@ -203,7 +203,8 @@ impl Future for SendRequest {
|
|||
should_decompress: self.req.response_decompress(),
|
||||
write_state: RunningState::Running,
|
||||
timeout: Some(Delay::new(Instant::now() + timeout)),
|
||||
close: self.req.method() == &Method::HEAD,
|
||||
meth: self.req.method().clone(),
|
||||
path: self.req.uri().clone(),
|
||||
});
|
||||
self.state = State::Send(pl);
|
||||
}
|
||||
|
|
@ -249,7 +250,8 @@ pub struct Pipeline {
|
|||
should_decompress: bool,
|
||||
write_state: RunningState,
|
||||
timeout: Option<Delay>,
|
||||
close: bool,
|
||||
meth: Method,
|
||||
path: Uri,
|
||||
}
|
||||
|
||||
enum IoBody {
|
||||
|
|
@ -283,7 +285,7 @@ impl RunningState {
|
|||
impl Pipeline {
|
||||
fn release_conn(&mut self) {
|
||||
if let Some(conn) = self.conn.take() {
|
||||
if self.close {
|
||||
if self.meth == Method::HEAD {
|
||||
conn.close()
|
||||
} else {
|
||||
conn.release()
|
||||
|
|
@ -529,6 +531,11 @@ impl Pipeline {
|
|||
impl Drop for Pipeline {
|
||||
fn drop(&mut self) {
|
||||
if let Some(conn) = self.conn.take() {
|
||||
debug!(
|
||||
"Client http transaction is not completed, dropping connection: {:?} {:?}",
|
||||
self.meth,
|
||||
self.path,
|
||||
);
|
||||
conn.close()
|
||||
}
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue