[JIRA] (JENKINS-53468) Since 1.27 update Channel is closing or has closed down

[cquc...@163.com (JIRA)]

Title: Message Title

Jin Chen commented on JENKINS-53468   Re: Since 1.27 update Channel is closing or has closed down Maybe the same issue for my case: jenkins: 2.138.1 ssh-slave: 1.28/1.29.1 Openstack Cloud: 2.40 we use openstack-cloud plugin to start agent dynamically which connected by SSH, and sometimes the started "worker-0" is offline when running builds, but the node is there and we can relanuch the node to bring it online, hope the logs help you to trace the issue // code placeholder Error when executing always post condition:Error when executing always post condition: hudson.remoting.ChannelClosedException: Channel "unknown": Remote call on worker-0 failed. The channel is closing down or has closed down at hudson.remoting.Channel.call(Channel.java:948) at hudson.FilePath.act(FilePath.java:1071) at hudson.FilePath.act(FilePath.java:1060) at hudson.FilePath.mkdirs(FilePath.java:1245) at org.jenkinsci.plugins.workflow.steps.CoreStep$Execution.run(CoreStep.java:79) at org.jenkinsci.plugins.workflow.steps.CoreStep$Execution.run(CoreStep.java:67) at org.jenkinsci.plugins.workflow.steps.SynchronousNonBlockingStepExecution$1$1.call(SynchronousNonBlockingStepExecution.java:50) at hudson.security.ACL.impersonate(ACL.java:290) at org.jenkinsci.plugins.workflow.steps.SynchronousNonBlockingStepExecution$1.run(SynchronousNonBlockingStepExecution.java:47) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748) Caused by: java.io.IOException: Unexpected termination of the channel at hudson.remoting.SynchronousCommandTransport$ReaderThread.run(SynchronousCommandTransport.java:77) Caused by: java.io.EOFException at java.io.ObjectInputStream$PeekInputStream.readFully(ObjectInputStream.java:2680) at java.io.ObjectInputStream$BlockDataInputStream.readShort(ObjectInputStream.java:3155) at java.io.ObjectInputStream.readStreamHeader(ObjectInputStream.java:861) at java.io.ObjectInputStream.<init>(ObjectInputStream.java:357) at hudson.remoting.ObjectInputStreamEx.<init>(ObjectInputStreamEx.java:49) at hudson.remoting.Command.readFrom(Command.java:140) at hudson.remoting.Command.readFrom(Command.java:126) at hudson.remoting.AbstractSynchronousByteArrayCommandTransport.read(AbstractSynchronousByteArrayCommandTransport.java:36) at hudson.remoting.SynchronousCommandTransport$ReaderThread.run(SynchronousCommandTransport.java:63) Add Comment   This message was sent by Atlassian Jira (v7.11.2#711002-sha1:fdc329d) -- You received this message because you are subscribed to the Google Groups "Jenkins Issues" group. To unsubscribe from this group and stop receiving emails from it, send an email to jenkinsci-issues+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.