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https://issues.apache.org/jira/browse/MAPREDUCE-3883?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Eugene Koontz updated MAPREDUCE-3883:
-------------------------------------
Status: Patch Available (was: Open)
> Document yarn.nodemanager.delete.debug-delay-sec configuration property
> -----------------------------------------------------------------------
>
> Key: MAPREDUCE-3883
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-3883
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: documentation, mrv2
> Reporter: Eugene Koontz
> Assignee: Eugene Koontz
> Priority: Minor
> Labels: newbie
> Fix For: 0.23.2
>
> Attachments: MAPREDUCE-3883.patch
>
>
> If you are using Yarn's nodemanager, you can add to your configuration:
> {noformat}
> <property>
> <name>yarn.nodemanager.delete.debug-delay-sec</name>
> <value>10000000</value>
> </property>
> {noformat}
> to save the environmental directories of the applications (by default in
> {{/tmp/nm-local-dir}}) that the nodemanager starts so that you can examine
> them later.
> Set the above value long enough so that you have time to examine the contents
> before the nodemanager's {{DeletionService}} removes them.
> This setting is defined in
> {{hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/conf/YarnConfiguration.java}},
> and used in
> {{hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/DeletionService.java}}.
> It's a useful configuration setting for developers, but seems not to be
> documented currently (see
> http://hadoop.apache.org/common/docs/r0.23.0/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-common/yarn-default.xml).
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