[JIRA] [ssh-slaves-plugin] (JENKINS-25858) java.io.IOException: Unexpected termination of the channel

[carl...@sumologic.com (JIRA)]

Title: Message Title

David Carlton commented on JENKINS-25858   Re: java.io.IOException: Unexpected termination of the channel I'm seeing this as well - I lose one or two slaves a day. Sample backtrace: FATAL: java.io.IOException: Unexpected termination of the channel hudson.remoting.RequestAbortedException: java.io.IOException: Unexpected termination of the channel at hudson.remoting.Request.abort(Request.java:297) at hudson.remoting.Channel.terminate(Channel.java:844) at hudson.remoting.SynchronousCommandTransport$ReaderThread.run(SynchronousCommandTransport.java:69) at ......remote call to Elastic Slave (i-4cc13bf9)(Native Method) at hudson.remoting.Channel.attachCallSiteStackTrace(Channel.java:1413) at hudson.remoting.Request.call(Request.java:172) at hudson.remoting.Channel.call(Channel.java:777) at hudson.FilePath.act(FilePath.java:978) at hudson.FilePath.act(FilePath.java:967) at hudson.FilePath.untar(FilePath.java:519) at hudson.plugins.cloneworkspace.CloneWorkspacePublisher$WorkspaceSnapshotTar.restoreTo(CloneWorkspacePublisher.java:243) at hudson.plugins.cloneworkspace.CloneWorkspaceSCM$Snapshot.restoreTo(CloneWorkspaceSCM.java:396) at hudson.plugins.cloneworkspace.CloneWorkspaceSCM.checkout(CloneWorkspaceSCM.java:152) at hudson.model.AbstractProject.checkout(AbstractProject.java:1274) at hudson.model.AbstractBuild$AbstractBuildExecution.defaultCheckout(AbstractBuild.java:609) at jenkins.scm.SCMCheckoutStrategy.checkout(SCMCheckoutStrategy.java:86) at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:531) at hudson.model.Run.execute(Run.java:1738) at hudson.maven.MavenModuleSetBuild.run(MavenModuleSetBuild.java:531) at hudson.model.ResourceController.execute(ResourceController.java:98) at hudson.model.Executor.run(Executor.java:381) Caused by: java.io.IOException: Unexpected termination of the channel at hudson.remoting.SynchronousCommandTransport$ReaderThread.run(SynchronousCommandTransport.java:50) Caused by: java.io.EOFException at java.io.ObjectInputStream$PeekInputStream.readFully(ObjectInputStream.java:2332) at java.io.ObjectInputStream$BlockDataInputStream.readShort(ObjectInputStream.java:2801) at java.io.ObjectInputStream.readStreamHeader(ObjectInputStream.java:801) at java.io.ObjectInputStream.<init>(ObjectInputStream.java:299) at hudson.remoting.ObjectInputStreamEx.<init>(ObjectInputStreamEx.java:40) at hudson.remoting.AbstractSynchronousByteArrayCommandTransport.read(AbstractSynchronousByteArrayCommandTransport.java:34) at hudson.remoting.SynchronousCommandTransport$ReaderThread.run(SynchronousCommandTransport.java:48) I don't have the slave-side log for that specific error, but on earlier failures that I looked at, the slave said something like this: 2016-03-03 16:30:38.483-0800 [id=10] SEVERE h.r.SynchronousCommandTransport$ReaderThread#run: I/O error in channel channel java.io.IOException: Unexpected EOF at hudson.remoting.ChunkedInputStream.readUntilBreak(ChunkedInputStream.java:99) at hudson.remoting.ChunkedCommandTransport.readBlock(ChunkedCommandTransport.java:39) at hudson.remoting.AbstractSynchronousByteArrayCommandTransport.read(AbstractSynchronousByteArrayCommandTransport.java:34) at hudson.remoting.SynchronousCommandTransport$ReaderThread.run(SynchronousCommandTransport.java:48) I'm using the EC2 plugin to launch slaves; Ubuntu 14.04.2, Jenkins 1.609.3. I don't yet have solid evidence as to whether the network disconnects are caused by Jenkins code or by something in the networking stack, but it would be nice if Jenkins could handle this better somehow - not have the slave process die in this scenario and then reconnect to it, or something. Add Comment   This message was sent by Atlassian JIRA (v6.4.2#64017-sha1:e244265) -- 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.