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From "Amar Kamat (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-2838) Add HADOOP_LIBRARY_PATH config setting so Hadoop will include external directories for jni
Date Fri, 05 Jun 2009 10:36:07 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-2838?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12716571#action_12716571
] 

Amar Kamat commented on HADOOP-2838:
------------------------------------

bq. Stumbled on this patch.. what happens if the value of mapred.child.env does not have a
well formed string - like doesn't have "key=value" but only key ? Has this been taken care
of ? 
TaskRunner will fail in child launch leading to task failure ultimately leading to job failure.
I see it as something similar to bad mapred code.

> Add HADOOP_LIBRARY_PATH config setting so Hadoop will include external directories for
jni
> ------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-2838
>                 URL: https://issues.apache.org/jira/browse/HADOOP-2838
>             Project: Hadoop Core
>          Issue Type: Improvement
>          Components: mapred
>    Affects Versions: 0.16.0
>            Reporter: Owen O'Malley
>            Assignee: Amar Kamat
>             Fix For: 0.21.0
>
>         Attachments: HADOOP-2838-v1.0.patch, HADOOP-2838-v1.1.patch, HADOOP-2838-v2.2-branch-20-example.patch,
HADOOP-2838-v2.2.patch
>
>
> Currently there is no way to configure Hadoop to use external JNI directories. I propose
we add a new variable like HADOOP_CLASS_PATH that is added to the JAVA_LIBRARY_PATH before
the process is run.

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