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From "Matei Zaharia (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-3644) TestLocalJobControl test gets OutOfMemoryError on 64-bit Java
Date Tue, 01 Jul 2008 21:58:45 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-3644?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12609723#action_12609723
] 

Matei Zaharia commented on HADOOP-3644:
---------------------------------------

Owen - that sounds good, though it might lead to a bit of confusion as more people start working
with 64-bit Java.

> TestLocalJobControl test gets OutOfMemoryError on 64-bit Java
> -------------------------------------------------------------
>
>                 Key: HADOOP-3644
>                 URL: https://issues.apache.org/jira/browse/HADOOP-3644
>             Project: Hadoop Core
>          Issue Type: Bug
>            Reporter: Matei Zaharia
>            Priority: Trivial
>             Fix For: 0.17.1, 0.18.0, 0.19.0
>
>         Attachments: testmem.patch
>
>
> The TestLocalJobControl unit test fails on 64-bit Java on Linux with an OutOfMemoryError.
Here is the exact Java environment:
> $ java -version
> java version "1.5.0_07"
> Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_07-b03)
> Java HotSpot(TM) 64-Bit Server VM (build 1.5.0_07-b03, mixed mode)
> The test runs fine with 32-bit Java. The problem is likely that some of the data structures
become bigger when using 64-bit pointers. As a fix, I've suggested simply increasing the memory
available to JUnit.

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