Thread dumps look like this when it hangs when executing a shell build step:
Executor #0 for master : executing <my job> #23" Id=40 Group=main
WAITING on java.lang.UNIXProcess@71cad1e6
at java.lang.Object.wait(Native Method)
- waiting on java.lang.UNIXProcess@71cad1e6
at java.lang.Object.wait(Object.java:503)
at java.lang.UNIXProcess.waitFor(UNIXProcess.java:261)
at hudson.Proc$LocalProc.join(Proc.java:319)
at hudson.tasks.CommandInterpreter.join(CommandInterpreter.java:137)
at hudson.tasks.CommandInterpreter.perform(CommandInterpreter.java:97)
at hudson.tasks.CommandInterpreter.perform(CommandInterpreter.java:66)
at hudson.tasks.BuildStepMonitor$1.perform(BuildStepMonitor.java:20)
at
hudson.model.AbstractBuild$AbstractBuildExecution.perform(AbstractBuild.java:779)
at hudson.model.Build$BuildExecution.build(Build.java:205)
at hudson.model.Build$BuildExecution.doRun(Build.java:162)
at
hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:537)
at hudson.model.Run.execute(Run.java:1741)
at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:43)
at hudson.model.ResourceController.execute(ResourceController.java:98)
at hudson.model.Executor.run(Executor.java:381)
And here's another case where it hangs trying to clone a repo:
"Executor #3 for master : executing <my other job> #1" Id=43
Group=main WAITING on java.lang.UNIXProcess@67150794
at java.lang.Object.wait(Native Method)
- waiting on java.lang.UNIXProcess@67150794
at java.lang.Object.wait(Object.java:503)
at java.lang.UNIXProcess.waitFor(UNIXProcess.java:261)
at hudson.Proc$LocalProc.join(Proc.java:319)
at hudson.Proc.joinWithTimeout(Proc.java:168)
at
org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommandIn(CliGitAPIImpl.java:1587)
at
org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommandWithCredentials(CliGitAPIImpl.java:1379)
at
org.jenkinsci.plugins.gitclient.CliGitAPIImpl.access$300(CliGitAPIImpl.java:86)
at
org.jenkinsci.plugins.gitclient.CliGitAPIImpl$1.execute(CliGitAPIImpl.java:324)
at hudson.plugins.git.GitSCM.fetchFrom(GitSCM.java:733)
at hudson.plugins.git.GitSCM.retrieveChanges(GitSCM.java:983)
at hudson.plugins.git.GitSCM.checkout(GitSCM.java:1016)
at hudson.scm.SCM.checkout(SCM.java:485)
at hudson.model.AbstractProject.checkout(AbstractProject.java:1284)
at
hudson.model.AbstractBuild$AbstractBuildExecution.defaultCheckout(AbstractBuild.java:610)
at jenkins.scm.SCMCheckoutStrategy.checkout(SCMCheckoutStrategy.java:86)
at
hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:532)
at hudson.model.Run.execute(Run.java:1741)
at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:43)
at hudson.model.ResourceController.execute(ResourceController.java:98)
at hudson.model.Executor.run(Executor.java:381)
I've tried downgrading Jenkins (now at 1.622) and all git and github
related plugins to the versions I have on another jenkins instance that is
working properly and I'm still getting these hangs. Both installs are on
mac minis running osx 10.10.5. Java 1.7.
On Thu, Aug 27, 2015 at 4:03 PM, Daniel Beck <[email protected]> wrote:
>
> On 27.08.2015, at 23:47, Victor Martinez <[email protected]>
> wrote:
>
> > There is already a good plugin to debug those java memory stacktraces
> and You can see those java processes, threads:
> https://wiki.jenkins-ci.org/display/JENKINS/Monitoring
>
> Thread dumps are available without any plugin in Jenkins on the
> /threadDump URL.
>
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