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Posted to dev@accumulo.apache.org by "Eric Newton (Commented) (JIRA)" <ji...@apache.org> on 2012/02/21 15:44:34 UTC
[jira] [Commented] (ACCUMULO-419) tablet servers running out of
memory
[ https://issues.apache.org/jira/browse/ACCUMULO-419?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13212624#comment-13212624 ]
Eric Newton commented on ACCUMULO-419:
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This test created over 100K tables: a new watcher is created whenever a tablet is loaded.
> tablet servers running out of memory
> ------------------------------------
>
> Key: ACCUMULO-419
> URL: https://issues.apache.org/jira/browse/ACCUMULO-419
> Project: Accumulo
> Issue Type: Improvement
> Components: tserver
> Affects Versions: 1.4.0
> Reporter: Eric Newton
> Assignee: Eric Newton
>
> 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: https://issues.apache.org/jira/browse/ZOOKEEPER-442
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