Details

    • Type: Improvement Improvement
    • Status: Open
    • Priority: Major Major
    • Resolution: Unresolved
    • Affects Version/s: 1.4.0
    • Fix Version/s: None
    • Component/s: tserver
    • Labels:

      Description

      After running randomwalk test for several days, tablet servers began to run out of memory. Heap dump analysis revealed a large number of HashMap entries. Inspection of those entries found they were referenced by zookeeper watches. A quick search finds this to be a known zookeeper issue: ZOOKEEPER-442

        Activity

        Hide
        Eric Newton added a comment -

        This test created over 100K tables: a new watcher is created whenever a tablet is loaded.

        Show
        Eric Newton added a comment - This test created over 100K tables: a new watcher is created whenever a tablet is loaded.

          People

          • Assignee:
            Unassigned
            Reporter:
            Eric Newton
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            Dates

            • Created:
              Updated:

              Development