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  1. Jenkins
  2. JENKINS-27957

NullPointerException in AdvancedQueueSorter

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      Description

      Hi,

      Our Jenkins server seems to get locked at some point in time.
      Many Jobs are in starvation, waiting for nodes with certain labels/label combinations.
      (i.e. Waiting for next available executor on ...)

      The log shows a lot of these entries:

      Apr 15, 2015 3:44:25 PM SEVERE hudson.triggers.SafeTimerTask run

Timer task hudson.model.Queue$MaintainTask@5d00189f failed
java.lang.NullPointerException
	at jenkins.advancedqueue.sorter.AdvancedQueueSorter$2.compare(AdvancedQueueSorter.java:99)
	at jenkins.advancedqueue.sorter.AdvancedQueueSorter$2.compare(AdvancedQueueSorter.java:81)
	at java.util.TimSort.countRunAndMakeAscending(TimSort.java:329)
	at java.util.TimSort.sort(TimSort.java:189)
	at java.util.TimSort.sort(TimSort.java:173)
	at java.util.Arrays.sort(Arrays.java:659)
	at java.util.Collections.sort(Collections.java:217)
	at jenkins.advancedqueue.sorter.AdvancedQueueSorter.sortBuildableItems(AdvancedQueueSorter.java:81)
	at hudson.model.Queue.maintain(Queue.java:1135)
	at hudson.model.Queue$MaintainTask.doRun(Queue.java:2197)
	at hudson.triggers.SafeTimerTask.run(SafeTimerTask.java:54)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
	at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:304)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:178)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:745)

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      and also some entries like

      java.lang.NullPointerException
	at jenkins.advancedqueue.sorter.AdvancedQueueSorter.onLeft(AdvancedQueueSorter.java:157)
	at jenkins.advancedqueue.sorter.AdvancedQueueSorterQueueListener.onLeft(AdvancedQueueSorterQueueListener.java:47)
	at hudson.model.Queue$LeftItem.enter(Queue.java:2087)
	at hudson.model.Queue.onStartExecuting(Queue.java:924)
	at hudson.model.Executor.run(Executor.java:209)
	at hudson.model.OneOffExecutor.run(OneOffExecutor.java:43)

      We see theses issues since we updated the Priority Sorter Plugin to version 2.11 (from version 2.9)

      Downgrading to version 2.9 seems to work fine!

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          Activity

          Ascending order - Click to sort in descending order
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          scm_issue_link SCM/JIRA link daemon added a comment -

          Code changed in jenkins
          User: emsa23
          Path:
          src/main/java/jenkins/advancedqueue/sorter/AdvancedQueueSorter.java
          http://jenkins-ci.org/commit/priority-sorter-plugin/93f73c0cce8ccf5238415a8fb37cd9558d9bcf5e
          Log:
          JENKINS-27957 NullPointerException in AdvancedQueueSorter

          Some items do not have names so returning 0 seems to be the only
          option

          Show
          scm_issue_link SCM/JIRA link daemon added a comment - Code changed in jenkins User: emsa23 Path: src/main/java/jenkins/advancedqueue/sorter/AdvancedQueueSorter.java http://jenkins-ci.org/commit/priority-sorter-plugin/93f73c0cce8ccf5238415a8fb37cd9558d9bcf5e Log: JENKINS-27957 NullPointerException in AdvancedQueueSorter Some items do not have names so returning 0 seems to be the only option
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          emsa23 Magnus Sandberg added a comment -

          Fixed in 2.12

          Show
          emsa23 Magnus Sandberg added a comment - Fixed in 2.12
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          mwebber Matthew Webber added a comment - - edited

          I upgraded Priority-Sorter to 3.0, and Jenkins from 1.611 to 1.612, and this problem re-appeared. Downgrading Priority-Sorter to 2.12 fixed the problem.

          Show
          mwebber Matthew Webber added a comment - - edited I upgraded Priority-Sorter to 3.0, and Jenkins from 1.611 to 1.612, and this problem re-appeared. Downgrading Priority-Sorter to 2.12 fixed the problem.
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          danielbeck Daniel Beck added a comment -

          The 3.0 issue is tracked as JENKINS-28195.

          Show
          danielbeck Daniel Beck added a comment - The 3.0 issue is tracked as JENKINS-28195 .

            People

            Assignee:
            emsa23 Magnus Sandberg
            Reporter:
            tom_ghyselinck Tom Ghyselinck
            Votes:
            1 Vote for this issue
            Watchers:
            4 Start watching this issue

              Dates

              Created:
              Updated:
              Resolved: