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From "Alejandro Abdelnur (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-4138) Reduce memory usage of counters due to non-static nested classes
Date Thu, 12 Apr 2012 09:45:33 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-4138?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13252308#comment-13252308

Alejandro Abdelnur commented on MAPREDUCE-4138:

+1. applied patch and run all hadoop-mapreduce-project testcase successfully.

[still puzzles me why counters (impl & API) are so complex]
> Reduce memory usage of counters due to non-static nested classes
> ----------------------------------------------------------------
>                 Key: MAPREDUCE-4138
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4138
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>            Reporter: Tom White
>            Assignee: Tom White
>         Attachments: MAPREDUCE-4138.patch
> FrameworkCounter is a non-static nested class of FrameworkCounterGroup which means it
retains a reference to the outer class, which isn't really needed.

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