Hi, Jenkins 2.179 Windows Server 2008 R2 controller, Windows 2016 agent
I think I've raised this issue before, but I don't believe I got it resolved (and I can't locate the original post). We've got a long running job (approx 18hours), and every second day, almost without fail, the jeniins agent process is getting disconnected. The messages from the jenkins-slave.err.log are below - the time between the INFO: Connected and INFO: Terminated lines seem to be consistently about 48 hours aparet (give/take a few hours). \jenkins-slave.err.log Jul 31, 2019 2:33:37 PM hudson.remoting.jnlp.Main$CuiListener status INFO: Connected Aug 01, 2019 6:53:39 AM hudson.remoting.jnlp.Main$CuiListener status INFO: Terminated Aug 01, 2019 6:53:49 AM hudson.remoting.jnlp.Main$CuiListener error SEVERE: jenkins/slaves/restarter/JnlpSlaveRestarterInstaller java.lang.NoClassDefFoundError: jenkins/slaves/restarter/JnlpSlaveRestarterInstaller at jenkins.slaves.restarter.JnlpSlaveRestarterInstaller$FindEffectiveRestarters$1.onReconnect(JnlpSlaveRestarterInstaller.java:93) at hudson.remoting.EngineListenerSplitter.onReconnect(EngineListenerSplitter.java:49) at hudson.remoting.Engine.innerRun(Engine.java:647) at hudson.remoting.Engine.run(Engine.java:455) Caused by: java.lang.ClassNotFoundException: jenkins.slaves.restarter.JnlpSlaveRestarterInstaller at java.net.URLClassLoader.findClass(Unknown Source) at hudson.remoting.RemoteClassLoader.findClass(RemoteClassLoader.java:157) at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) ... 4 more [...] Aug 01, 2019 8:39:26 AM hudson.remoting.jnlp.Main$CuiListener status INFO: Connected Aug 02, 2019 6:34:30 AM hudson.remoting.jnlp.Main$CuiListener status INFO: Terminated Aug 02, 2019 6:34:41 AM hudson.remoting.jnlp.Main$CuiListener error SEVERE: jenkins/slaves/restarter/JnlpSlaveRestarterInstaller java.lang.NoClassDefFoundError: jenkins/slaves/restarter/JnlpSlaveRestarterInstaller at jenkins.slaves.restarter.JnlpSlaveRestarterInstaller$FindEffectiveRestarters$1.onReconnect(JnlpSlaveRestarterInstaller.java:93) at hudson.remoting.EngineListenerSplitter.onReconnect(EngineListenerSplitter.java:49) at hudson.remoting.Engine.innerRun(Engine.java:647) at hudson.remoting.Engine.run(Engine.java:455) Caused by: java.lang.ClassNotFoundException: jenkins.slaves.restarter.JnlpSlaveRestarterInstaller at java.net.URLClassLoader.findClass(Unknown Source) at hudson.remoting.RemoteClassLoader.findClass(RemoteClassLoader.java:157) at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) ... 4 more [...] Aug 02, 2019 4:38:01 PM hudson.remoting.jnlp.Main$CuiListener status INFO: Connected Aug 04, 2019 6:48:05 AM hudson.remoting.jnlp.Main$CuiListener status INFO: Terminated Aug 04, 2019 6:48:15 AM hudson.remoting.jnlp.Main$CuiListener error SEVERE: jenkins/slaves/restarter/JnlpSlaveRestarterInstaller java.lang.NoClassDefFoundError: jenkins/slaves/restarter/JnlpSlaveRestarterInstaller at jenkins.slaves.restarter.JnlpSlaveRestarterInstaller$FindEffectiveRestarters$1.onReconnect(JnlpSlaveRestarterInstaller.java:93) at hudson.remoting.EngineListenerSplitter.onReconnect(EngineListenerSplitter.java:49) at hudson.remoting.Engine.innerRun(Engine.java:647) at hudson.remoting.Engine.run(Engine.java:455) Caused by: java.lang.ClassNotFoundException: jenkins.slaves.restarter.JnlpSlaveRestarterInstaller at java.net.URLClassLoader.findClass(Unknown Source) at hudson.remoting.RemoteClassLoader.findClass(RemoteClassLoader.java:157) at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) ... 4 more Is there anything I should investigate as to why these agents are continually failing? Can I increase the verbosity of the logging to get more information, or tweak some timeout settings? What I can't figure out is why the error on startup again is "NoClassDefFoundError", as that indicates a classpath problem, right? I've got a Windows 2008 server agent running a similar job, and it has no similar issues. Cheers, 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 jenkinsci-users+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/jenkinsci-users/5617c5aa-0346-4ec6-b717-137e16083cef%40googlegroups.com.
