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https://issues.apache.org/jira/browse/SSHD-1020?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17142679#comment-17142679
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Sivanagarajup commented on SSHD-1020:
-------------------------------------
Hi [~lgoldstein],
We are seeing this timeout exception while writing data packet to socket
because we are failing in write.
We expect it should not be idle timeout. And we are exchanging the HEART BEAT
packets for every 90 seconds to keep the session active.
What can be the root cause for this timeout in write ?
Thanks
Siva
> SSH connections getting closed abruptly with timeout exceptions.
> java.nio.channels.InterruptedByTimeoutException
> ----------------------------------------------------------------------------------------------------------------
>
> Key: SSHD-1020
> URL: https://issues.apache.org/jira/browse/SSHD-1020
> Project: MINA SSHD
> Issue Type: Bug
> Affects Versions: 2.2.0
> Reporter: Sivanagarajup
> Priority: Blocker
>
> Hi Team
> SSH sessions are closing with timeout exceptions as mentioned below
> {code:java}
> 2020-06-18 03:07:11,942 DEBUG [org.apache.sshd.common.io.nio2.Nio2Session]
> (sshd-SshServer[6c96892e](port=8345)-nio2-thread-1)
> exceptionCaught(Nio2Session[local=/10.1.2.3:8345,
> remote=/20.24.16.108:41480]) caught InterruptedByTimeoutException[null] -
> calling handler2020-06-18 03:07:11,942 DEBUG
> [org.apache.sshd.common.io.nio2.Nio2Session]
> (sshd-SshServer[6c96892e](port=8345)-nio2-thread-1)
> exceptionCaught(Nio2Session[local=/10.1.2.3:8345,
> remote=/20.24.16.108:41480]) caught InterruptedByTimeoutException[null] -
> calling handler2020-06-18 03:07:11,943 WARN
> [org.apache.sshd.server.session.ServerSessionImpl]
> (sshd-SshServer[6c96892e](port=8345)-nio2-thread-1)
> exceptionCaught(ServerSessionImpl[clientNBI@/20.24.16.108:41480])[state=Opened]
> InterruptedByTimeoutException: null2020-06-18 03:07:11,943 DEBUG
> [org.apache.sshd.server.session.ServerSessionImpl]
> (sshd-SshServer[6c96892e](port=8345)-nio2-thread-1)
> exceptionCaught(ServerSessionImpl[clientNBI@/20.24.16.108:41480])[state=Opened]
> details: java.nio.channels.InterruptedByTimeoutException at
> sun.nio.ch.UnixAsynchronousSocketChannelImpl$1.run(UnixAsynchronousSocketChannelImpl.java:456)
> [rt.jar:1.8.0_231] at
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
> [rt.jar:1.8.0_231] at
> java.util.concurrent.FutureTask.run(FutureTask.java:266) [rt.jar:1.8.0_231]
> at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
> [rt.jar:1.8.0_231] at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
> [rt.jar:1.8.0_231] at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> [rt.jar:1.8.0_231] at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> [rt.jar:1.8.0_231] at java.lang.Thread.run(Thread.java:748)
> [rt.jar:1.8.0_231]
> 2020-06-18 03:07:11,945 DEBUG
> [org.apache.sshd.common.session.helpers.SessionTimeoutListener]
> (sshd-SshServer[6c96892e](port=8345)-nio2-thread-1)
> sessionException(ServerSessionImpl[clientNBI@/20.24.16.108:41480])
> InterruptedByTimeoutException: null2020-06-18 03:07:11,945 TRACE
> [org.apache.sshd.common.session.helpers.SessionTimeoutListener]
> (sshd-SshServer[6c96892e](port=8345)-nio2-thread-1)
> sessionException(ServerSessionImpl[clientNBI@/20.24.16.108:41480]) details:
> java.nio.channels.InterruptedByTimeoutException at
> sun.nio.ch.UnixAsynchronousSocketChannelImpl$1.run(UnixAsynchronousSocketChannelImpl.java:456)
> [rt.jar:1.8.0_231] at
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
> [rt.jar:1.8.0_231] at
> java.util.concurrent.FutureTask.run(FutureTask.java:266) [rt.jar:1.8.0_231]
> at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
> [rt.jar:1.8.0_231] at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
> [rt.jar:1.8.0_231] at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> [rt.jar:1.8.0_231] at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> [rt.jar:1.8.0_231] at java.lang.Thread.run(Thread.java:748)
> [rt.jar:1.8.0_231]
> 2020-06-18 03:07:11,946 DEBUG
> [org.apache.sshd.common.session.helpers.SessionTimeoutListener]
> (sshd-SshServer[6c96892e](port=8345)-nio2-thread-1)
> sessionClosed(ServerSessionImpl[clientNBI@/20.24.16.108:41480])
> un-tracked2020-06-18 03:07:11,946 DEBUG
> [org.apache.sshd.server.session.ServerSessionImpl]
> (sshd-SshServer[6c96892e](port=8345)-nio2-thread-1)
> close(ServerSessionImpl[clientNBI@/20.24.16.108:41480]) Closing
> immediately2020-06-18 03:07:11,946 TRACE
> [org.apache.sshd.common.session.helpers.SessionTimeoutListener]
> (sshd-SshServer[6c96892e](port=8345)-nio2-thread-1)
> sessionClosed(ServerSessionImpl[clientNBI@/20.24.16.108:41480]) not
> tracked2020-06-18 03:07:11,946 TRACE
> [org.apache.sshd.common.util.closeable.SequentialCloseable]
> (sshd-SshServer[6c96892e](port=8345)-nio2-thread-1) doClose(true) closing
> org.apache.sshd.common.util.closeable.ParallelCloseable@a0279422020-06-18
> 03:07:11,946 TRACE [org.apache.sshd.common.util.closeable.ParallelCloseable]
> (sshd-SshServer[6c96892e](port=8345)-nio2-thread-1) doClose(true) pending
> closeables: 22020-06-18 03:07:11,946 DEBUG
> [org.apache.sshd.server.session.ServerConnectionService]
> (sshd-SshServer[6c96892e](port=8345)-nio2-thread-1)
> close(ServerConnectionService[ServerSessionImpl[clientNBI@/20.24.16.108:41480]])
> Closing immediately2020-06-18 03:07:11,947 TRACE
> [org.apache.sshd.common.util.closeable.ParallelCloseable]
> (sshd-SshServer[6c96892e](port=8345)-nio2-thread-1) doClose(true) pending
> closeables: 22020-06-18 03:07:11,947 DEBUG
> [org.apache.sshd.server.channel.ChannelSession]
> (sshd-SshServer[6c96892e](port=8345)-nio2-thread-1)
> close(ChannelSession[id=0,
> recipient=0]-ServerSessionImpl[clientNBI@/20.24.16.108:41480]) Closing
> immediately2020-06-18 03:07:11,947 DEBUG
> [org.apache.sshd.server.channel.ChannelSession]
> (sshd-SshServer[6c96892e](port=8345)-nio2-thread-1)
> close(ChannelSession[id=0,
> recipient=0]-ServerSessionImpl[clientNBI@/20.24.16.108:41480]) prevent
> sending EOF2020-06-18 03:07:11,947 DEBUG
> [org.apache.sshd.common.channel.Window]
> (sshd-SshServer[6c96892e](port=8345)-nio2-thread-1) Closing
> Window[server/local](ChannelSession[id=0,
> recipient=0]-ServerSessionImpl[clientNBI@/20.24.16.108:41480])2020-06-18
> 03:07:11,947 DEBUG [org.apache.sshd.common.channel.Window]
> (sshd-SshServer[6c96892e](port=8345)-nio2-thread-1) Closing
> Window[server/remote](ChannelSession[id=0,
> recipient=0]-ServerSessionImpl[clientNBI@/20.24.16.108:41480])2020-06-18
> 03:07:11,948 TRACE
> [org.apache.sshd.common.util.closeable.SequentialCloseable]
> (sshd-SshServer[6c96892e](port=8345)-nio2-thread-1) doClose(true) closing
> org.apache.sshd.server.channel.ChannelSession$CommandCloseable@662e3d1e2020-06-18
> 03:07:11,948 TRACE
> [org.apache.sshd.common.util.closeable.SequentialCloseable]
> (sshd-SshServer[6c96892e](port=8345)-nio2-thread-1) doClose(true) closing
> org.apache.sshd.common.util.closeable.SequentialCloseable@da00d8f2020-06-18
> 03:07:11,948 TRACE
> [org.apache.sshd.common.util.closeable.SequentialCloseable]
> (sshd-SshServer[6c96892e](port=8345)-nio2-thread-1) doClose(true) closing
> GracefulChannelCloseable[ChannelSession[id=0,
> recipient=0]-ServerSessionImpl[clientNBI@/20.24.16.108:41480]]2020-06-18
> 03:07:11,948 DEBUG
> [org.apache.sshd.common.channel.AbstractChannel$GracefulChannelCloseable]
> (sshd-SshServer[6c96892e](port=8345)-nio2-thread-1)
> close(ChannelSession[id=0,
> recipient=0]-ServerSessionImpl[clientNBI@/20.24.16.108:41480])[immediately=true]
> processing2020-06-18 03:07:11,948 TRACE
> [org.apache.sshd.common.util.closeable.SequentialCloseable]
> (sshd-SshServer[6c96892e](port=8345)-nio2-thread-1) doClose(true) closing
> org.apache.sshd.common.util.closeable.Builder$1@73992fa72020-06-18
> 03:07:11,948 DEBUG [org.apache.sshd.server.session.ServerConnectionService]
> (sshd-SshServer[6c96892e](port=8345)-nio2-thread-1)
> unregisterChannel(ChannelSession[id=0,
> recipient=0]-ServerSessionImpl[clientNBI@/20.24.16.108:41480])
> result=ChannelSession[id=0,
> recipient=0]-ServerSessionImpl[clientNBI@/20.24.16.108:41480]2020-06-18
> 03:07:11,948 DEBUG
> [org.apache.sshd.common.util.closeable.SequentialCloseable]
> (sshd-SshServer[6c96892e](port=8345)-nio2-thread-1) doClose(true) signal
> close complete2020-06-18 03:07:11,948 TRACE
> [org.apache.sshd.common.util.closeable.SequentialCloseable]
> (sshd-SshServer[6c96892e](port=8345)-nio2-thread-1) doClose(true) closing
> org.apache.sshd.common.util.closeable.ParallelCloseable@6a4880ff2020-06-18
> 03:07:11,948 TRACE [org.apache.sshd.common.util.closeable.ParallelCloseable]
> (sshd-SshServer[6c96892e](port=8345)-nio2-thread-1) doClose(true) completed
> pending: 02020-06-18 03:07:11,948 TRACE
> [org.apache.sshd.common.util.closeable.SequentialCloseable]
> (sshd-SshServer[6c96892e](port=8345)-nio2-thread-1) doClose(true) closing
> org.apache.sshd.common.util.closeable.Builder$1@7d1986652020-06-18
> 03:07:11,949 DEBUG [org.apache.sshd.server.channel.ChannelSession]
> (sshd-SshServer[6c96892e](port=8345)-nio2-thread-1)
> closeShell(ChannelSession[id=0,
> recipient=0]-ServerSessionImpl[clientNBI@/20.24.16.108:41480]) exit
> code=-12020-06-18 03:07:11,949 DEBUG
> [org.apache.sshd.server.channel.ChannelSession]
> (sshd-SshServer[6c96892e](port=8345)-nio2-thread-1)
> onExit(ChannelSession[id=0,
> recipient=0]-ServerSessionImpl[clientNBI@/20.24.16.108:41480]) code=-1
> message='' shell closed2020-06-18 03:07:11,949 TRACE
> [org.apache.sshd.server.channel.ChannelSession]
> (sshd-SshServer[6c96892e](port=8345)-nio2-thread-1)
> close(ChannelOutputStream[ChannelSession[id=0,
> recipient=0]-ServerSessionImpl[clientNBI@/20.24.16.108:41480]]
> SSH_MSG_CHANNEL_DATA) closing2020-06-18 03:07:11,949 TRACE
> [org.apache.sshd.server.channel.ChannelSession]
> (sshd-SshServer[6c96892e](port=8345)-nio2-thread-1)
> close(ChannelOutputStream[ChannelSession[id=0,
> recipient=0]-ServerSessionImpl[clientNBI@/20.24.16.108:41480]]
> SSH_MSG_CHANNEL_EXTENDED_DATA) closing2020-06-18 03:07:11,950 DEBUG
> [org.apache.sshd.server.channel.ChannelSession]
> (sshd-SshServer[6c96892e](port=8345)-nio2-thread-1)
> doCloseImmediately(ChannelSession[id=0,
> recipient=0]-ServerSessionImpl[clientNBI@/20.24.16.108:41480]) failed
> (SshChannelClosedException) to close resources:
> flush(ChannelOutputStream[ChannelSession[id=0,
> recipient=0]-ServerSessionImpl[clientNBI@/20.24.16.108:41480]]
> SSH_MSG_CHANNEL_DATA) length=0 - stream is already closed2020-06-18
> 03:07:11,950 DEBUG [org.apache.sshd.server.channel.ChannelSession]
> (pool-7-thread-757) closeShell(ChannelSession[id=0,
> recipient=0]-ServerSessionImpl[clientNBI@/20.24.16.108:41480]) exit
> code=02020-06-18 03:07:11,950 TRACE
> [org.apache.sshd.server.channel.ChannelSession]
> (sshd-SshServer[6c96892e](port=8345)-nio2-thread-1) Suppressed
> SshChannelClosedException) while close immediately resource(s) of
> ChannelSession[id=0,
> recipient=0]-ServerSessionImpl[clientNBI@/20.24.16.108:41480]:
> flush(ChannelOutputStream[ChannelSession[id=0,
> recipient=0]-ServerSessionImpl[clientNBI@/20.24.16.108:41480]]
> SSH_MSG_CHANNEL_EXTENDED_DATA) length=0 - stream is already closed2020-06-18
> 03:07:11,951 DEBUG
> [org.apache.sshd.common.util.closeable.SequentialCloseable]
> (sshd-SshServer[6c96892e](port=8345)-nio2-thread-1) doClose(true) signal
> close complete
> {code}
> Could you please help us what cause the issue and how to evaluate this?
>
> Thanks
> Siva
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