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Posted to notifications@accumulo.apache.org by "Christopher Tubbs (Jira)" <ji...@apache.org> on 2020/10/28 23:19:00 UTC

[jira] [Resolved] (ACCUMULO-624) iterators may open lots of compressors

     [ https://issues.apache.org/jira/browse/ACCUMULO-624?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Christopher Tubbs resolved ACCUMULO-624.
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    Resolution: Abandoned

Closing this stale issue. If this is still a problem, please open a new issue or PR at https://github.com/apache/accumulo

> iterators may open lots of compressors
> --------------------------------------
>
>                 Key: ACCUMULO-624
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-624
>             Project: Accumulo
>          Issue Type: Bug
>          Components: tserver
>            Reporter: Eric C. Newton
>            Priority: Major
>
> A large iterator tree may create many instances of Compressors.  These instances are pulled from a pool that never decreases in size.  So, if 50 simultaneous queries are run over dozens of files, each with a complex iterator stack, there will be thousands of compressors created.  Each of these holds a large buffer.  This can cause the server to run out of memory.



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