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From "Robert Chansler (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-2838) Add HADOOP_LIBRARY_PATH config setting so Hadoop will include external directories for jni
Date Fri, 09 Oct 2009 04:17:31 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-2838?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Robert Chansler updated HADOOP-2838:
------------------------------------

     Description: 
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.

Now the users can set environment variables using mapred.child.env. They can do the following

X=Y : set X to Y
X=$X:Y : Append Y to X (which should be taken from the tasktracker)

  was: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.

    Release Note:   (was: Now the users can set environment variables using mapred.child.env.
They can do the following 
X=Y : set X to Y
X=$X:Y : Append Y to X (which should be taken from the tasktracker))

Editorial pass over all release notes prior to publication of 0.21.

> 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 Common
>          Issue Type: Improvement
>    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.
> Now the users can set environment variables using mapred.child.env. They can do the following

> X=Y : set X to Y
> X=$X:Y : Append Y to X (which should be taken from the tasktracker)

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