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Date: Sun, 23 Nov 2008 13:25:44 -0800 (PST)
From: "Matei Zaharia (JIRA)" <jira@apache.org>
To: core-dev@hadoop.apache.org
Subject: [jira] Commented: (HADOOP-4698) TestMapRed fails with 64bit JDK
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    [ https://issues.apache.org/jira/browse/HADOOP-4698?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12650053#action_12650053 ] 

Matei Zaharia commented on HADOOP-4698:
---------------------------------------

Why not increase the memory limit used by ant to run these tests (currently 256 MB)? I've had other tests fail on 64-bit Linux before for the same reason.

> TestMapRed fails with 64bit JDK
> -------------------------------
>
>                 Key: HADOOP-4698
>                 URL: https://issues.apache.org/jira/browse/HADOOP-4698
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: mapred, test
>    Affects Versions: 0.19.0
>            Reporter: Nigel Daley
>            Assignee: Nigel Daley
>             Fix For: 0.19.1
>
>         Attachments: HADOOP-4698.patch
>
>
> 2 test cases in TestMapRed fail when run with 64bit JDK.  They both run out of memory.  This is due to the default value of io.sort.mb being used (100mb).

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