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Posted to notifications@accumulo.apache.org by "Mike Drob (JIRA)" <ji...@apache.org> on 2013/07/09 02:29:48 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 ]

Mike Drob updated ACCUMULO-1534:
--------------------------------

    Fix Version/s:     (was: 1.4.4)
    
> 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
>             Fix For: 1.5.1, 1.6.0
>
>
> 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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