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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-1493) possible double setting of java.library.path introduced by HADOOP-838
Date Tue, 19 Jun 2007 05:04:27 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-1493?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12506042
] 

Hadoop QA commented on HADOOP-1493:
-----------------------------------

Integrated in Hadoop-Nightly #127 (See [http://lucene.zones.apache.org:8080/hudson/job/Hadoop-Nightly/127/])

> possible double setting of java.library.path introduced by HADOOP-838
> ---------------------------------------------------------------------
>
>                 Key: HADOOP-1493
>                 URL: https://issues.apache.org/jira/browse/HADOOP-1493
>             Project: Hadoop
>          Issue Type: Bug
>          Components: mapred
>    Affects Versions: 0.14.0
>            Reporter: Enis Soztutar
>            Assignee: Enis Soztutar
>             Fix For: 0.14.0
>
>         Attachments: HADOOP-1493_v1.0.patch
>
>
> HADOOP-838 introduced setting java.library.path to run the {{TaskTracker$Child}} from
the TaskTracker's library.path, so that the native lib path is passed to the child. However
if we also want to set -Djava.library.path from the configuration by "mapred.child.java.opts",
than the child java process is called with two -Djava.library.path properties, and java seems
to ignore the former, rather than use the two. This situation prevents using -Djava.library.path
in "mapred.child.java.opts". 

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