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  1. Jenkins
  2. JENKINS-19561

Unsafe & inefficient concurrency in XStream

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      Related to JENKINS-13154, we are still seeing lots of congestion with Jenkins 1.517 and our builds may still stay tens of minutes in "Waiting for Jenkins to finish collecting data" -phase.

      The place has changed though, now thread dumps show lots of these:

      java.lang.Thread.State: BLOCKED (on object monitor)
      at java.util.Collections$SynchronizedMap.get(Collections.java:2031)
      waiting to lock <0x000000070c6dcfa8> (a java.util.Collections$SynchronizedMap)
      at com.thoughtworks.xstream.core.DefaultConverterLookup.lookupConverterForType(DefaultConverterLookup.java:49)

        1. fingerprinting_locks_jenkins-1.517.threads
          1.28 MB

          [JENKINS-19561] Unsafe & inefficient concurrency in XStream

          Mikko Peltonen created issue -
          Mikko Peltonen made changes -
          Link New: This issue is related to JENKINS-13154 [ JENKINS-13154 ]
          Jesse Glick made changes -
          Labels New: performance threads
          Jesse Glick made changes -
          Link New: This issue is related to JENKINS-18775 [ JENKINS-18775 ]
          Jesse Glick made changes -
          Summary Original: Heavy thread congestion with FingerPrint.save sequel New: Lock contention in XStream
          Jesse Glick made changes -
          Priority Original: Major [ 3 ] New: Critical [ 2 ]
          Summary Original: Lock contention in XStream New: Unsafe & inefficient concurrency in XStream
          Daniel Beck made changes -
          Link New: This issue is related to JENKINS-23514 [ JENKINS-23514 ]
          Jesse Glick made changes -
          Labels Original: performance threads New: performance threads xstream
          Jesse Glick made changes -
          Labels Original: performance threads xstream New: performance threads workflow xstream
          Jesse Glick made changes -
          Labels Original: performance threads workflow xstream New: 2.0 performance threads workflow xstream
          Daniel Beck made changes -
          Labels Original: 2.0 performance threads workflow xstream New: 2.0-rejected performance threads workflow xstream

            jglick Jesse Glick
            mp3 Mikko Peltonen
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              Created:
              Updated:
              Resolved: