在 Amazon EC2 中使用 openjdk 14.0.1 我遇到间歇性问题java.io.IOException: Connection reset
当通过 https 使用 POST 请求访问外部 REST 服务时。在 EC2 之外不会发生这种情况。
它会在短时间不活动后发生一次,并在再次调用 REST 服务后解决。重复冲洗。
使用类似的负载直接通过curl 访问外部REST 服务不会发生该错误,只有在JVM 内部短暂不活动后才会发生该错误。
我一直关注连接池jdk.internal.net.http.Http2ClientImpl
。我的理论是从池中拾取一个陈旧的连接,但我没有具体的证据证明这一点。
也许是别的东西。可能是什么原因造成的?
与此同时,我已经将 HTTP 客户端更换为 Apache 产品,到目前为止,效果还不错。
堆栈跟踪:
java.io.IOException: Connection reset
at java.net.http/jdk.internal.net.http.HttpClientImpl.send(HttpClientImpl.java:576)
at java.net.http/jdk.internal.net.http.HttpClientFacade.send(HttpClientFacade.java:119)
at Main.main(Main.java:201)
Caused by: java.net.SocketException: Connection reset
at java.base/sun.nio.ch.SocketChannelImpl.throwConnectionReset(SocketChannelImpl.java:345)
at java.base/sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:376)
at java.net.http/jdk.internal.net.http.SocketTube.readAvailable(SocketTube.java:1153)
at java.net.http/jdk.internal.net.http.SocketTube$InternalReadPublisher$InternalReadSubscription.read(SocketTube.java:821)
at java.net.http/jdk.internal.net.http.SocketTube$SocketFlowTask.run(SocketTube.java:175)
at java.net.http/jdk.internal.net.http.common.SequentialScheduler$SchedulableTask.run(SequentialScheduler.java:198)
at java.net.http/jdk.internal.net.http.common.SequentialScheduler.runOrSchedule(SequentialScheduler.java:271)
at java.net.http/jdk.internal.net.http.common.SequentialScheduler.runOrSchedule(SequentialScheduler.java:224)
at java.net.http/jdk.internal.net.http.SocketTube$InternalReadPublisher$InternalReadSubscription.signalReadable(SocketTube.java:763)
at java.net.http/jdk.internal.net.http.SocketTube$InternalReadPublisher$ReadEvent.signalEvent(SocketTube.java:941)
at java.net.http/jdk.internal.net.http.SocketTube$SocketFlowEvent.handle(SocketTube.java:245)
at java.net.http/jdk.internal.net.http.HttpClientImpl$SelectorManager.handleEvent(HttpClientImpl.java:968)
at java.net.http/jdk.internal.net.http.HttpClientImpl$SelectorManager.lambda$run$3(HttpClientImpl.java:923)
at java.base/java.util.ArrayList.forEach(ArrayList.java:1510)
at java.net.http/jdk.internal.net.http.HttpClientImpl$SelectorManager.run(HttpClientImpl.java:923)
java.io.IOException: Connection reset
at java.net.http/jdk.internal.net.http.HttpClientImpl.send(HttpClientImpl.java:576)
at java.net.http/jdk.internal.net.http.HttpClientFacade.send(HttpClientFacade.java:119)
at Main.main(Main.java:201)
Caused by: java.net.SocketException: Connection reset
at java.base/sun.nio.ch.SocketChannelImpl.throwConnectionReset(SocketChannelImpl.java:345)
at java.base/sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:376)
at java.net.http/jdk.internal.net.http.SocketTube.readAvailable(SocketTube.java:1153)
at java.net.http/jdk.internal.net.http.SocketTube$InternalReadPublisher$InternalReadSubscription.read(SocketTube.java:821)
at java.net.http/jdk.internal.net.http.SocketTube$SocketFlowTask.run(SocketTube.java:175)
at java.net.http/jdk.internal.net.http.common.SequentialScheduler$SchedulableTask.run(SequentialScheduler.java:198)
at java.net.http/jdk.internal.net.http.common.SequentialScheduler.runOrSchedule(SequentialScheduler.java:271)
at java.net.http/jdk.internal.net.http.common.SequentialScheduler.runOrSchedule(SequentialScheduler.java:224)
at java.net.http/jdk.internal.net.http.SocketTube$InternalReadPublisher$InternalReadSubscription.signalReadable(SocketTube.java:763)
at java.net.http/jdk.internal.net.http.SocketTube$InternalReadPublisher$ReadEvent.signalEvent(SocketTube.java:941)
at java.net.http/jdk.internal.net.http.SocketTube$SocketFlowEvent.handle(SocketTube.java:245)
at java.net.http/jdk.internal.net.http.HttpClientImpl$SelectorManager.handleEvent(HttpClientImpl.java:968)
at java.net.http/jdk.internal.net.http.HttpClientImpl$SelectorManager.lambda$run$3(HttpClientImpl.java:923)
at java.base/java.util.ArrayList.forEach(ArrayList.java:1510)
at java.net.http/jdk.internal.net.http.HttpClientImpl$SelectorManager.run(HttpClientImpl.java:923)
经过大量调试:
DEBUG: [qtp1724731843-13] [1810s 799ms] AsyncSSLConnection(SSLTube(SocketTube(1))) HttpPublisher: sending 1646 bytes (2 buffers) to SSLTube(SocketTube(1))
DEBUG: [qtp1724731843-13] [1810s 800ms] SSLTube(SocketTube(1)) sending 2 buffers to SSL flow delegate
DEBUG: [qtp1724731843-13] [1810s 800ms] SSL Writer(SocketTube(1)) onNext
DEBUG: [qtp1724731843-13] [1810s 800ms] SSL Writer(SocketTube(1)) added 2 (1646 bytes) to the writeList
DEBUG: [qtp1724731843-13] [1810s 800ms] SSL Writer(SocketTube(1)) processData, writeList remaining:1646, hsTriggered:false, needWrap:false
DEBUG: [qtp1724731843-13] [1810s 800ms] SSL Writer(SocketTube(1)) wrapping 1646 bytes
DEBUG: [qtp1724731843-13] [1810s 800ms] SSL Writer(SocketTube(1)) SSLResult: Status = OK HandshakeStatus = NOT_HANDSHAKING
bytesConsumed = 1646 bytesProduced = 1684 sequenceNumber = 20
DEBUG: [qtp1724731843-13] [1810s 800ms] SSL Writer(SocketTube(1)) OK => produced: 1684 bytes into 1688, not wrapped: 0
DEBUG: [qtp1724731843-13] [1810s 800ms] SSL Writer(SocketTube(1)) wrapBuffer returned Status = OK HandshakeStatus = NOT_HANDSHAKING
bytesConsumed = 1646 bytesProduced = 1684 sequenceNumber = 20
DEBUG: [qtp1724731843-13] [1810s 800ms] SSL Writer(SocketTube(1)) Sending 1684 bytes downstream
DEBUG: [qtp1724731843-13] [1810s 800ms] SSL Writer(SocketTube(1)) Adding 1684 to outputQ queue
DEBUG: [qtp1724731843-13] [1810s 800ms] SSL Writer(SocketTube(1)) pushScheduler is alive
DEBUG: [qtp1724731843-13] [1810s 800ms] SSL Writer(SocketTube(1)) DownstreamPusher: queue not empty, downstreamSubscription: SubscriptionBase: window = 1 cancelled = false
DEBUG: [qtp1724731843-13] [1810s 800ms] SSL Writer(SocketTube(1)) DownstreamPusher: Pushing 1684 bytes downstream
DEBUG: [qtp1724731843-13] [1810s 800ms] SocketTube(1) trying to write: 1684
DEBUG: [qtp1724731843-13] [1810s 807ms] SocketTube(1) write error: java.io.IOException: Broken pipe
DEBUG: [qtp1724731843-13] [1810s 808ms] SocketTube(1) error signalled java.io.IOException: Broken pipe
DEBUG: [qtp1724731843-13] [1810s 808ms] SocketTube(1) write: cancel
DEBUG: [qtp1724731843-13] [1810s 808ms] SocketTube(1) write: resetting demand to 0
DEBUG: [qtp1724731843-13] [1810s 808ms] AsyncSSLConnection(SSLTube(SocketTube(1))) HttpPublisher: cancelled by SSLTube(SocketTube(1))
DEBUG: [HttpClient-1-SelectorManager] [1810s 809ms] SocketTube(1) Sending error java.net.SocketException: Connection reset to subscriber READER: SubscriberWrapper: upstreamCompleted: false upstreamWindow: 1 downstreamCompleted: false completionAcknowledged: false outputQ size: 0 cf: jdk.internal.net.http.common.MinimalFuture@e19f43d[Not completed, 4 dependents] (id=21) downstreamSubscription: SubscriptionBase: window = 9223372036854775778 cancelled = false downstreamSubscriber: SSLSubscriberWrapper[SSLTube(SocketTube(1)), delegate: DelegateWrapper[subscribedCalled: true, subscribedDone: true, completed: false, error: null]: jdk.internal.net.http.Http2Connection$Http2TubeSubscriber@6500fba3, getALPN: jdk.internal.net.http.common.MinimalFuture@7dbd5c04[Completed normally] (id=27), onCompleteReceived: false, onError: null], readBuf: java.nio.HeapByteBuffer[pos=1618 lim=1618 cap=4096], count: 14238, scheduler: running, status: OK, handshakeState: 0, engine: NOT_HANDSHAKING
DEBUG: [HttpClient-1-SelectorManager] [1810s 809ms] SocketTube(1) forwarding error to subscriber: java.net.SocketException: Connection reset
DEBUG: [HttpClient-1-SelectorManager] [1810s 809ms] SSL Reader(SocketTube(1)) onError: java.net.SocketException: Connection reset
DEBUG: [HttpClient-1-SelectorManager] [1810s 809ms] SSL Reader(SocketTube(1)) error java.net.SocketException: Connection reset
DEBUG: [qtp1724731843-13] [1810s 810ms] SocketTube(1) leaving w.onNext Reading: [ops=0, demand=0, stopped=false], Writing: [ops=0, demand=0]
DEBUG: [qtp1724731843-13] [1810s 810ms] SSL Writer(SocketTube(1)) upstreamWindowUpdate, downstreamQueueSize:0, upstreamWindow:0
DEBUG: [qtp1724731843-13] [1810s 810ms] SSL Writer(SocketTube(1)) requesting 1
DEBUG: [qtp1724731843-13] [1810s 810ms] SSLTube(SocketTube(1)) request: n=1
DEBUG: [qtp1724731843-13] [1810s 810ms] AsyncSSLConnection(SSLTube(SocketTube(1))) HttpPublisher: got request of 1 from SSLTube(SocketTube(1))
DEBUG: [qtp1724731843-13] [1810s 810ms] Http2Connection(SSLTube(SocketTube(1)))/Stream(19) trySend: request 1
DEBUG: [qtp1724731843-13] [1810s 811ms] Http2Connection(SSLTube(SocketTube(1)))/Stream(19) RequestSubscriber: onComplete
java.net.SocketException: Connection reset
at java.base/sun.nio.ch.SocketChannelImpl.throwConnectionReset(SocketChannelImpl.java:345)
at java.base/sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:376)
at java.net.http/jdk.internal.net.http.SocketTube.readAvailable(SocketTube.java:1153)
at java.net.http/jdk.internal.net.http.SocketTube$InternalReadPublisher$InternalReadSubscription.read(SocketTube.java:821)
at java.net.http/jdk.internal.net.http.SocketTube$SocketFlowTask.run(SocketTube.java:175)
at java.net.http/jdk.internal.net.http.common.SequentialScheduler$SchedulableTask.run(SequentialScheduler.java:198)
at java.net.http/jdk.internal.net.http.common.SequentialScheduler.runOrSchedule(SequentialScheduler.java:271)
at java.net.http/jdk.internal.net.http.common.SequentialScheduler.runOrSchedule(SequentialScheduler.java:224)
at java.net.http/jdk.internal.net.http.SocketTube$InternalReadPublisher$InternalReadSubscription.signalReadable(SocketTube.java:763)
at java.net.http/jdk.internal.net.http.SocketTube$InternalReadPublisher$ReadEvent.signalEvent(SocketTube.java:941)