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From "Ravi Prakash (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MAPREDUCE-4134) Remove references of mapred.child.ulimit etc. since they are not being used any more
Date Wed, 11 Apr 2012 17:59:19 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-4134?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Ravi Prakash updated MAPREDUCE-4134:

    Attachment: MAPREDUCE-4134.patch

This patch removes the ulimit configuration parameters. Now when a user submits a job with
any of these, a WARN message is displayed on the client.
We would also have to delete 
* hadoop-tools/hadoop-streaming/src/test/java/org/apache/hadoop/streaming/TestUlimit.java
* hadoop-tools/hadoop-streaming/src/test/java/org/apache/hadoop/streaming/UlimitApp.java
> Remove references of mapred.child.ulimit etc. since they are not being used any more
> ------------------------------------------------------------------------------------
>                 Key: MAPREDUCE-4134
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4134
>             Project: Hadoop Map/Reduce
>          Issue Type: Task
>          Components: mrv2
>    Affects Versions: 0.23.2
>            Reporter: Ravi Prakash
>            Assignee: Ravi Prakash
>         Attachments: MAPREDUCE-4134.patch
> Courtesy Philip Su, we found that (mapred.child.ulimit, mapreduce.map.ulimit, mapreduce.reduce.ulimit)
were not being used at all. The configuration exists but is never used. Its also mentioned
in mapred-default.xml and templates/../mapred-site.xml . Also the method getUlimitMemoryCommand
in Shell.java is now useless and can be removed.

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