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  1. Jenkins
  2. JENKINS-15931

Build is hanging in xUnit plugin processing

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      When using Amazon EC2 plugin, builds on newly created EC2 instances sometimes hang.
      We have two permanent slaves for a certain label (e.g. 'unittest'),
      which is generated from an AMI.
      The same AMI is specified within Amazon EC2 plugin settings.

      We have a job which can be executed concurrently
      When we invoke three builds at one time, two permanent slaves are exhausted
      and the new one is created.

      The problem is that the build on the new slave hangs at the end of it
      where xUnit plugin is aggregating the test result.

      [CHECKSTYLE] Collecting checkstyle analysis files...
[CHECKSTYLE] Computing warning deltas based on reference build #850
[FINDBUGS] Collecting findbugs analysis files...
[FINDBUGS] Computing warning deltas based on reference build #850
Archiving artifacts
[xUnit] [INFO] - Starting to record.
[xUnit] [INFO] - Processing JUnit
[xUnit] [INFO] - [JUnit] - 581 test report file(s) were found with the pattern '**/testresult/**/*.xml' relative to '/var/lib/jenkins/workspace/400_Precommit_Check_Branch' for the testing framework 'JUnit'.

      After aborting the build, the following error is shown.

      ERROR: Publisher org.jenkinsci.plugins.xunit.XUnitPublisher aborted due to exception
java.lang.InterruptedException
	at java.lang.Object.wait(Native Method)
	at hudson.remoting.Request.call(Request.java:146)
	at hudson.remoting.Channel.call(Channel.java:665)
	at hudson.FilePath.act(FilePath.java:841)
	at hudson.FilePath.act(FilePath.java:825)
	at org.jenkinsci.plugins.xunit.XUnitPublisher.performTests(XUnitPublisher.java:170)
	at org.jenkinsci.plugins.xunit.XUnitPublisher.performXUnit(XUnitPublisher.java:115)
	at org.jenkinsci.plugins.xunit.XUnitPublisher.perform(XUnitPublisher.java:92)
	at hudson.tasks.BuildStepMonitor$1.perform(BuildStepMonitor.java:19)
	at hudson.model.AbstractBuild$AbstractBuildExecution.perform(AbstractBuild.java:804)
	at hudson.model.AbstractBuild$AbstractBuildExecution.performAllBuildSteps(AbstractBuild.java:779)
	at hudson.model.Build$BuildExecution.post2(Build.java:183)
	at hudson.model.AbstractBuild$AbstractBuildExecution.post(AbstractBuild.java:726)
	at hudson.model.Run.execute(Run.java:1541)
	at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:46)
	at hudson.model.ResourceController.execute(ResourceController.java:88)
	at hudson.model.Executor.run(Executor.java:236)
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      I tried to capture the thread dump, but both master and the target slave had EMPTY thread dump while another slave had its own.
      I'd appreciate if someone give me advice.

      Jenkins ver. 1.491
      xUnit plugin 1.51
      Amazon EC2 plugin 1.17

        1. hs_err_pid15419.log
          92 kB
        2. jstack_master.txt
          105 kB
        3. jstack_slave.out
          13 kB
        4. lsof_slave.out
          6 kB

            nfalco Nikolas Falco
            tmgw165 Hiroko Tamagawa
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              Created:
              Updated:
              Resolved: