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From "Eric Newton (JIRA)" <>
Subject [jira] [Updated] (ACCUMULO-419) cannot unwatch zookeeper nodes
Date Mon, 30 Apr 2012 16:35:48 GMT


Eric Newton updated ACCUMULO-419:

    Summary: cannot unwatch zookeeper nodes  (was: tablet servers running out of memory)
> cannot unwatch zookeeper nodes
> ------------------------------
>                 Key: ACCUMULO-419
>                 URL:
>             Project: Accumulo
>          Issue Type: Improvement
>          Components: tserver
>    Affects Versions: 1.4.0
>            Reporter: Eric Newton
>            Assignee: Eric Newton
>              Labels: 14_qa_bug
> 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:

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