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  1. ZooKeeper
  2. ZOOKEEPER-287

high cpu utilization caused by nioserver factory thread

    Details

    • Type: Bug
    • Status: Closed
    • Priority: Critical
    • Resolution: Duplicate
    • Affects Version/s: 3.0.1
    • Fix Version/s: 3.3.0
    • Component/s: server
    • Labels:
      None
    • Environment:
    • Release Note:
      Marking as 3.2 -- we should resolve or close this as unreproduceable.

      Description

      a user reported that a long running server, part of a 2 server ensemble, started using 100%cpu (1 server of the ensemble, the other was fine).

      mahadev tracked it down to a thread in the server running epoll in a tight loop - the thread was the nio server factory thread that selects on client fds.

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              • Assignee:
                Unassigned
                Reporter:
                phunt Patrick Hunt
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                Dates

                • Created:
                  Updated:
                  Resolved: