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  1. Jenkins
  2. JENKINS-19691

Make the lifetime of queue items cache configurable


    • Icon: Improvement Improvement
    • Resolution: Fixed
    • Icon: Minor Minor
    • core
    • None
    • jenkins-1.509.3

      In the Jenkins installations with many executors queue becomes a critical resource. When many executors / scheduler try to take the job at the same time, queue visualization may lock the web interface:

      "Handling POST /ajaxBuildQueue : RequestHandlerThread180" daemon prio=10 tid=0x00002aaacccdc000 nid=0x378c waiting for monitor entry [0x0000000059b2c000]
      java.lang.Thread.State: BLOCKED (on object monitor)
      at hudson.model.Queue.getItems(Queue.java:641)

      • waiting to lock <0x0000000680060bf0> (a hudson.model.Queue)
        at hudson.model.Queue$CachedItemList.get(Queue.java:196)
        at hudson.model.Queue.getApproximateItemsQuickly(Queue.java:671)
        at hudson.model.View.getApproximateQueueItemsQuickly(View.java:457)
        at sun.reflect.GeneratedMethodAccessor248.invoke(Unknown Source)

      getApproximateItemsQuickly() updates its cache every 1 second. I propose to make this time configurable

            oleg_nenashev Oleg Nenashev
            oleg_nenashev Oleg Nenashev
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