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From "Hong Tang (JIRA)" <j...@apache.org>
Subject [jira] Created: (MAPREDUCE-1527) QueueManager should issue warning if mapred-queues.xml is skipped.
Date Tue, 23 Feb 2010 22:24:28 GMT
QueueManager should issue warning if mapred-queues.xml is skipped.
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                 Key: MAPREDUCE-1527
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1527
             Project: Hadoop Map/Reduce
          Issue Type: Improvement
            Reporter: Hong Tang


MAPREDUCE-861 added support for hierarchical queues and used a new file mapred-queues.xml
to configure queues. But the QueueManager will silently skip the file if property "mapred.queue.names"
is defined in Configuration. This tripped us when we are testing MAPREDUCE-1235 and copied
configuration files from a Hadoop 0.20 cluster.

I suggest QueueManager issue a friendly warning if both of the following are true: (1) "mapred.queue.names"
exists in Configuration; (2) "mapred-queues.xml" is found in the classpath.

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