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Posted to issues@tez.apache.org by "Jonathan Eagles (JIRA)" <ji...@apache.org> on 2016/02/22 22:47:18 UTC

[jira] [Assigned] (TEZ-3115) Shuffle string handling adds significant memory overhead

     [ https://issues.apache.org/jira/browse/TEZ-3115?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jonathan Eagles reassigned TEZ-3115:
------------------------------------

    Assignee: Jonathan Eagles

> Shuffle string handling adds significant memory overhead
> --------------------------------------------------------
>
>                 Key: TEZ-3115
>                 URL: https://issues.apache.org/jira/browse/TEZ-3115
>             Project: Apache Tez
>          Issue Type: Bug
>    Affects Versions: 0.7.0
>            Reporter: Jason Lowe
>            Assignee: Jonathan Eagles
>         Attachments: TEZ-3115.1.patch
>
>
> While investigating the OOM heap dump from TEZ-3114 I noticed that the ShuffleManager and other shuffle-related objects were holding onto many strings that added up to over a hundred megabytes of memory.



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