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  1. Jenkins
  2. JENKINS-59579

EC2 Plugin stops slave when build is running


    • Type: Bug
    • Status: Closed (View Workflow)
    • Priority: Blocker
    • Resolution: Not A Defect
    • Component/s: ec2-plugin, swarm-plugin
    • Labels:
    • Environment:
      Jenkins 2.187
      Amazon EC2 1.44.1
      Swarm 3.13
    • Similar Issues:


      I have set up the connection between Jenkins and AWS via Amazon EC2 plugin. Jenkins master cloud config: 


      The node connects via the Amazon plugin and then creates a new connection via Swarm plugin and the job ends up running on the connection made through swarm. (This is because my jobs include TestComplete & FlaUI and winRM is not quite suited for their requirements).


      Jobs that take under 25 min run successfully, anything that goes over 25-26 min fails with the following:

       Slave log:

      12:49:46 java.io.IOException: Backing channel 'JNLP4-connect connection from' is disconnected.
      12:49:46 	at hudson.remoting.RemoteInvocationHandler.channelOrFail(RemoteInvocationHandler.java:214)
      12:49:46 	at hudson.remoting.RemoteInvocationHandler.invoke(RemoteInvocationHandler.java:283)
      12:49:46 	at com.sun.proxy.$Proxy89.isAlive(Unknown Source)
      12:49:46 	at hudson.Launcher$RemoteLauncher$ProcImpl.isAlive(Launcher.java:1172)
      12:49:46 	at hudson.Launcher$RemoteLauncher$ProcImpl.join(Launcher.java:1164)
      12:49:46 	at hudson.Launcher$ProcStarter.join(Launcher.java:492)
      12:49:46 	at hudson.plugins.gradle.Gradle.performTask(Gradle.java:333)
      12:49:46 	at hudson.plugins.gradle.Gradle.perform(Gradle.java:225)
      12:49:46 	at hudson.tasks.BuildStepMonitor$1.perform(BuildStepMonitor.java:20)
      12:49:46 	at hudson.model.AbstractBuild$AbstractBuildExecution.perform(AbstractBuild.java:741)
      12:49:46 	at hudson.model.Build$BuildExecution.build(Build.java:206)
      12:49:46 	at hudson.model.Build$BuildExecution.doRun(Build.java:163)
      12:49:46 	at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:504)
      12:49:46 	at hudson.model.Run.execute(Run.java:1815)
      12:49:46 	at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:43)
      12:49:46 	at hudson.model.ResourceController.execute(ResourceController.java:97)
      12:49:46 	at hudson.model.Executor.run(Executor.java:429)
      12:49:46 Caused by: java.nio.channels.ClosedChannelException
      12:49:46 	at org.jenkinsci.remoting.protocol.NetworkLayer.onRecvClosed(NetworkLayer.java:154)
      12:49:46 	at org.jenkinsci.remoting.protocol.impl.NIONetworkLayer.ready(NIONetworkLayer.java:179)
      12:49:46 	at org.jenkinsci.remoting.protocol.IOHub$OnReady.run(IOHub.java:795)
      12:49:46 	at jenkins.util.ContextResettingExecutorService$1.run(ContextResettingExecutorService.java:28)
      12:49:46 	at jenkins.security.ImpersonatingExecutorService$1.run(ImpersonatingExecutorService.java:59)
      12:49:46 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
      12:49:46 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
      12:49:46 	at java.lang.Thread.run(Thread.java:748)

      On the master's log I can see:

      Idle timeout of EC2 (Itiviti AWS) - Windows Jenkins node autoconnecting to deb-jenkins-prd using Swarm plugin (i-000908b57bb5d82a7) after 30 idle minutes, instance statusRUNNING
      Sep 30, 2019 8:40:45 AM INFO hudson.plugins.ec2.EC2AbstractSlave idleTimeout
      EC2 instance idle time expired: i-000908b57bb5d82a7
      Sep 30, 2019 8:40:46 AM INFO hudson.plugins.ec2.EC2OndemandSlave terminate
      Terminated EC2 instance (terminated): i-000908b57bb5d82a7
      Sep 30, 2019 8:40:46 AM INFO jenkins.slaves.DefaultJnlpSlaveReceiver channelClosed
      IOHub#1: Worker[channel:java.nio.channels.SocketChannel[connected local=/ remote=]] / Computer.threadPoolForRemoting [#85772] for ec2amaz-glc1084 terminated: java.nio.channels.ClosedChannelException
      Sep 30, 2019 8:40:46 AM INFO hudson.model.Run execute
      aws-ul-trader-extension-master-desk-uitests-listorders #22 main build action completed: FAILURE
      Sep 30, 2019 8:40:46 AM INFO hudson.plugins.ec2.EC2OndemandSlave terminate
      Removed EC2 instance from jenkins master: i-000908b57bb5d82a7

      After that period of time the slave is disconnected even though the build was running on it. Any help in tracking down the problem is much appreciated!


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            • Assignee:
              thoulen FABRIZIO MANFREDI
              gcimpoies George Cimpoies
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