Saar Netzer added a comment - 2015-08-03 09:04 - edited This issue is happening now again. When running jenkins_cli command it hangs. Every couple of days the identity file is getting corrupted. Moving it and restarting Jenkins resolving the problem as a new identity file is created. This happen when Jenkins is running and not on shutdown/restart of the platform. Jenkins Version 1.565.3 Java build 1.7.0_75-b13

Daniel Beck added a comment - 2015-08-03 09:48 1.565.x has been out of community support for over a year. For this issue to be relevant, needs to happen with a recent release (1.609.x preferably, 1.596.x if absolutely necessary). If the identify file gets corrupted while Jenkins is running, consider making it readonly for the user Jenkins is running as to see what fails to work because of that.

Victor Martinez added a comment - 2016-10-13 12:30 Hi there, Unfortunately I've just seen this issue with the previous LTS release: jenkins version: 2.7.4 Java: 1.7.0_111 command $ telnet 127.0.0.1 8080 Trying 127.0.0.1... Connected to 127.0.0.1. Escape character is '^]' . ^Connection closed by foreign host. $ java -jar /usr/share/jenkins/jenkins-cli.jar -s http: //127.0.0.1:8080 help jenkins.log Oct 13, 2016 2:25:08 PM hudson.TcpSlaveAgentListener$ConnectionHandler run INFO: Accepted connection #4 from /127.0.0.1:46816 Oct 13, 2016 2:25:08 PM hudson.init.impl.InstallUncaughtExceptionHandler$DefaultUncaughtExceptionHandler uncaughtException SEVERE: A thread (TCP agent connection handler #4 with /127.0.0.1:46816/1601) died unexpectedly due to an uncaught exception, this may leave your Jenkins in a bad way and is usually indicative of a bug in the code. java.lang.Error: java.lang.reflect.InvocationTargetException at hudson.cli.CliProtocol2$Handler2.run(CliProtocol2.java:74) at hudson.cli.CliProtocol2.handle(CliProtocol2.java:33) at hudson.TcpSlaveAgentListener$ConnectionHandler.run(TcpSlaveAgentListener.java:182) Caused by: java.lang.reflect.InvocationTargetException at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at hudson.cli.CliProtocol2$Handler2.run(CliProtocol2.java:65) ... 2 more Caused by: java.lang.NullPointerException at org.jenkinsci.main.modules.instance_identity.InstanceIdentity.get(InstanceIdentity.java:152) ... 7 more I'll double check whether with the latest release 2.19.X works fine

Victor Martinez added a comment - 2016-10-13 13:35 It works after upgrading to the latest version: 2.19.1 and the below plugins: credentials = '2.1.0' ssh_credentials = '1.12' build_pipeline_plugin = '1.4.4' findbugs = '4.62' jquery = '1.11.2-0' token_macro = '1.12.1' Cheers

Brenna Flood added a comment - 2016-11-11 21:15 I experienced this issue. My setup: Jenkins 2.7.4 - 2.11.11 Docker - CentOS 6.8 JDK 1.8.111 No security setup (this is a test instance - chef + kitchen) The cause of the behavior in my case was that the identity file in the Jenkins root could not be loaded. To correct the issue, I simply removed the file and restarted the Jenkins service.