Hi Viacheslav, thanks for your reply!
Yes, I also know this Wiki page. But I saw no indication that the ping thread fails (checked the logs) and we're not using ssh agents. So this also did not help. But anyhow we disabled the ping thread on one of our masters but still see this issue. BR, Daniel Am Donnerstag, 8. November 2018 13:25:25 UTC+1 schrieb Slava Dubrovskiy: > > Hi Daniel, > > Did you read https://wiki.jenkins.io/display/JENKINS/Remoting+issue ? > 08.11.2018 14:13, Daniel Weber пишет: > > Hi all, > > (Note: This is a copy from my post which was originally done in > Jenkins-dev, where it was wrong). > > we are trying to find the root cause for ChannelClosedExceptions we keep > getting in about 10% of our builds (which is far too often). > > We use one-time agents deployed in AWS (instances are created and > destroyed for each build) in this scenario. I set the default log level to > FINEST on the agents and found this > > Nov 06, 2018 5:38:57 PM > org.jenkinsci.remoting.protocol.impl.BIONetworkLayer$Reader run > FINER: [JNLP4-connect connection to frcv001/10.179.171.222:49394] > Unexpected I/O exception > java.io.IOException: A connection attempt failed because the connected > party did not properly respond after a period of time, or established > connection failed because connected host has failed to respond > at sun.nio.ch.SocketDispatcher.read0(Native Method) > at sun.nio.ch.SocketDispatcher.read(Unknown Source) > at sun.nio.ch.IOUtil.readIntoNativeBuffer(Unknown Source) > at sun.nio.ch.IOUtil.read(Unknown Source) > at sun.nio.ch.SocketChannelImpl.read(Unknown Source) > at hudson.remoting.SocketChannelStream$1.read(SocketChannelStream.java:35) > at sun.nio.ch.ChannelInputStream.read(Unknown Source) > at sun.nio.ch.ChannelInputStream.read(Unknown Source) > at sun.nio.ch.ChannelInputStream.read(Unknown Source) > at java.nio.channels.Channels$ReadableByteChannelImpl.read(Unknown Source) > at > org.jenkinsci.remoting.protocol.impl.BIONetworkLayer$Reader.run(BIONetworkLayer.java:245) > at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) > at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) > at hudson.remoting.Engine$1.lambda$newThread$0(Engine.java:93) > at java.lang.Thread.run(Unknown Source) > > Nov 06, 2018 5:38:57 PM org.jenkinsci.remoting.protocol.NetworkLayer > onRecvClosed > FINEST: [JNLP4-connect connection to frcv001/10.179.171.222:49394] RECV > Closed > Nov 06, 2018 5:38:57 PM org.jenkinsci.remoting.protocol.FilterLayer > onRecvClosed > FINEST: [JNLP4-connect connection to frcv001/10.179.171.222:49394] RECV > Closed > Nov 06, 2018 5:38:57 PM org.jenkinsci.remoting.protocol.ApplicationLayer > onRecvClosed > FINE: [JNLP4-connect connection to frcv001/10.179.171.222:49394] RECV > Closed > Nov 06, 2018 5:38:57 PM com.trilead.ssh2.log.Logger log > FINEST: Received SSH_MSG_CHANNEL_DATA 64511 bytes payload > Nov 06, 2018 5:38:57 PM com.trilead.ssh2.log.Logger log > FINEST: Got SSH_MSG_CHANNEL_DATA (channel 100, 64502) > Nov 06, 2018 5:38:57 PM hudson.remoting.jnlp.Main$CuiListener status > INFO: Terminated > > and then later > > FINER: HandleMessage: got shutdown > Nov 06, 2018 5:38:57 PM hudson.remoting.Request$2 run > WARNING: Failed to send back a reply to the request > hudson.remoting.Request$2@503986c5 > hudson.remoting.ChannelClosedException: Channel > "hudson.remoting.Channel@798747f3:JNLP4-connect connection to frcv001/ > 10.179.171.222:49394": channel is already closed > at hudson.remoting.Channel.send(Channel.java:717) > at hudson.remoting.Request$2.run(Request.java:382) > at > hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:72) > at java.util.concurrent.FutureTask.run(Unknown Source) > at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) > at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) > at hudson.remoting.Engine$1.lambda$newThread$0(Engine.java:93) > at java.lang.Thread.run(Unknown Source) > Caused by: java.nio.channels.ClosedChannelException > at > org.jenkinsci.remoting.protocol.NetworkLayer.onRecvClosed(NetworkLayer.java:154) > at > org.jenkinsci.remoting.protocol.impl.BIONetworkLayer.access$1800(BIONetworkLayer.java:48) > at > org.jenkinsci.remoting.protocol.impl.BIONetworkLayer$Reader.run(BIONetworkLayer.java:264) > ... 4 more > > > The agents successfully reconnect after this, but that does not help us > because at that time, the build has already > failed and the machine will be destroyed. > > I also read this: > https://support.cloudbees.com/hc/en-us/articles/115001416548-dedicated-JNLP-agents-formerly-slaves-get-disconnected > > - agent.jar is downloaded from the master before startup to make sure > they use the correct version > - I did not find any log messaged indicating the ping thread > terminated the connection > - We are currently using Jenkins LTS 2.121.3, Remoting version: 3.21.1 > - Both master and agents are running under Windows Server 2012. > > Any help / hints would be greatly appreciated. I'd also be happy to open > an issue if you think it makes sense :) > > Best Regards, > Daniel > -- > You received this message because you are subscribed to the Google Groups > "Jenkins Users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected] <javascript:>. > To view this discussion on the web visit > https://groups.google.com/d/msgid/jenkinsci-users/971cdf53-90b7-491a-b691-c448df7b44d1%40googlegroups.com > > <https://groups.google.com/d/msgid/jenkinsci-users/971cdf53-90b7-491a-b691-c448df7b44d1%40googlegroups.com?utm_medium=email&utm_source=footer> > . > For more options, visit https://groups.google.com/d/optout. > > -- > WBD, > Viacheslav Dubrovskyi > > -- You received this message because you are subscribed to the Google Groups "Jenkins Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/jenkinsci-users/8c7a6611-ead9-41a9-bfc4-0a86c31a86e7%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
