Uploaded image for project: 'Oozie'
  1. Oozie
  2. OOZIE-3160

PriorityDelayQueue put()/take() can cause significant CPU load due to busy waiting

    XMLWordPrintableJSON

Details

    • Bug
    • Status: Closed
    • Major
    • Resolution: Fixed
    • trunk
    • 5.1.0
    • core
    • None

    • all platforms

    Description

      oozie process always consume high cpu. in my mechine,around 10%.

      I check the source code，find take() method in PriorityDelayQueue class。

      code:

      public QueueElement<E> take() throws InterruptedException {
    QueueElement<E> e = poll();
    while (e == null) {
        Thread.sleep(10);
        e = poll();
    }
    return e;
}

      i think it's the reason of this problem. it's keep while, not await.

      Attachments

        1. 222222222222222222.png
          73 kB
          jj
        2. 11111111111111.png
          7 kB
          jj
        3. OOZIE-3160-POC01.patch
          11 kB
          Peter Bacsko
        4. OOZIE-3160-POC02.patch
          20 kB
          Peter Bacsko
        5. PriorityDelayQueue improvement - OOZIE-3160.pdf
          348 kB
          Peter Bacsko
        6. OOZIE-3160-POC02.patch
          20 kB
          Peter Bacsko
        7. OOZIE-3160-POC03.patch
          25 kB
          Peter Bacsko
        8. OOZIE-3160-POC04.patch
          38 kB
          Peter Bacsko
        9. OOZIE-3160-POC05.patch
          53 kB
          Peter Bacsko
        10. OOZIE-3160-001.patch
          61 kB
          Peter Bacsko
        11. OOZIE-3160-002.patch
          64 kB
          Peter Bacsko
        12. OOZIE-3160-003.patch
          65 kB
          Peter Bacsko
        13. OOZIE-3160-004.patch
          66 kB
          Peter Bacsko
        14. OOZIE-3160-005.patch
          65 kB
          Peter Bacsko
        15. OOZIE-3160-006.patch
          66 kB
          Peter Bacsko
        16. OOZIE-3160-007.patch
          67 kB
          Peter Bacsko
        17. OOZIE-3160.amend.001.patch
          0.7 kB
          Andras Piros
        18. OOZIE-3160.amend.002.patch
          4 kB
          Andras Piros
        19. OOZIE-3160.amend.003.patch
          10 kB
          Andras Piros
        20. OOZIE-3160.amend.004.patch
          22 kB
          Andras Piros
        21. OOZIE-3160.amend.005.patch
          22 kB
          Andras Piros

        Issue Links

          blocks

          Sub-task - The sub-task of the issue OOZIE-3352 [tests] TestCallableQueueService#testPriorityExecutionOrder() is flaky

          • Major - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. OOZIE-3349 Test cases in oozie fail with java.net.ConnectException

          • Major - Major loss of function.
          • Closed

          New Feature - A new feature of the product, which has yet to be developed. OOZIE-3229 [client] [ui] Improved SLA filtering options

          • Major - Major loss of function.
          • Closed
          is related to

          Sub-task - The sub-task of the issue OOZIE-1855 TestPriorityDelayQueue#testPoll failed intermittently in Jenkins

          • Major - Major loss of function.
          • Closed
          relates to

          Bug - A problem which impairs or prevents the functions of the product. OOZIE-3349 Test cases in oozie fail with java.net.ConnectException

          • Major - Major loss of function.
          • Closed

          Improvement - An improvement or enhancement to an existing feature or task. OOZIE-3357 [core] More graceful CallableQueueService#destroy()

          • Major - Major loss of function.
          • Open
          links to

          Web Link POC Review

          Web Link ReviewBoard review request for amendment commits

          Activity

            People

              pbacsko Peter Bacsko
              j782070772 jj
              Votes:
              0 Vote for this issue
              Watchers:
              7 Start watching this issue

              Dates

                Created:
                Updated:
                Resolved: