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Posted to mapreduce-issues@hadoop.apache.org by "zhihai xu (JIRA)" <ji...@apache.org> on 2014/11/20 02:24:33 UTC

[jira] [Updated] (MAPREDUCE-6169) MergeQueue should release reference to the current item from key and value at the end of the iteration to save memory.

     [ https://issues.apache.org/jira/browse/MAPREDUCE-6169?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

zhihai xu updated MAPREDUCE-6169:
---------------------------------
    Attachment: MAPREDUCE-6169.000.patch

> MergeQueue should release reference to the current item from key and value at the end of the iteration to save memory.
> ----------------------------------------------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-6169
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6169
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>            Reporter: zhihai xu
>            Assignee: zhihai xu
>            Priority: Minor
>         Attachments: MAPREDUCE-6169.000.patch
>
>
> MergeQueue should release reference to the current item from key and value at the end of the iteration to save memory.
> these buffers referenced by key and value can be large, which may cause an OOM error.



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