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Posted to notifications@accumulo.apache.org by "Keith Turner (JIRA)" <ji...@apache.org> on 2014/01/02 19:47:53 UTC

[jira] [Updated] (ACCUMULO-1534) Tablet Server using large number of decompressors during a scan

     [ https://issues.apache.org/jira/browse/ACCUMULO-1534?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Keith Turner updated ACCUMULO-1534:
-----------------------------------

    Fix Version/s:     (was: 1.5.1)
                       (was: 1.6.0)

> Tablet Server using large number of decompressors during a scan
> ---------------------------------------------------------------
>
>                 Key: ACCUMULO-1534
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-1534
>             Project: Accumulo
>          Issue Type: Bug
>    Affects Versions: 1.4.3
>            Reporter: Mike Drob
>            Assignee: Keith Turner
>            Priority: Critical
>
> I believe this issue is similar to ACCUMULO-665. We've run into a situation where a complex iterator tree creates a large number of decompressors from the underlying CodecPool for serving scans. Each decompressor holds on to a large buffer and the total volume ends up killing the tserver.
> We have verified that turning off compression makes this problem go away.



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