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  1. ZooKeeper
  2. ZOOKEEPER-427

ZooKeeper server unexpectedly high CPU utilisation

    Details

    • Type: Bug
    • Status: Closed
    • Priority: Blocker
    • Resolution: Fixed
    • Affects Version/s: 3.1.1
    • Fix Version/s: 3.2.0
    • Component/s: None
    • Labels:
      None
    • Environment:
    • Hadoop Flags:
      Reviewed

      Description

      I am running a 5 node ZooKeeper cluster and I noticed that one of them has very high CPU usage:

      PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
      6883 infact 22 0 725m 41m 4188 S 95 0.5 5671:54 java

      It is not "doing anything" application-wise at this point, so I was wondering why the heck it's using up so much CPU.

        Attachments

        1. zookeeper-jstack.log
          16 kB
          Satish Bhatti
        2. zookeeper.log
          124 kB
          Satish Bhatti
        3. zoo.cfg
          0.5 kB
          Satish Bhatti
        4. zk_quorum_recv_eof.patch
          1 kB
          Sergey Zhuravlev
        5. ZOOKEEPER-427.patch
          0.8 kB
          Flavio Junqueira

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              • Assignee:
                fpj Flavio Junqueira
                Reporter:
                satish Satish Bhatti
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                Dates

                • Created:
                  Updated:
                  Resolved: