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From "Hong Tang (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-5755) Add explicit remote map count JobTracker metrics
Date Tue, 28 Apr 2009 18:30:32 GMT
Add explicit remote map count JobTracker metrics

                 Key: HADOOP-5755
                 URL: https://issues.apache.org/jira/browse/HADOOP-5755
             Project: Hadoop Core
          Issue Type: Improvement
          Components: mapred
            Reporter: Hong Tang

I am proposing to add a counter REMOTE_MAPS in addition to the following counters: TOTAL_MAPS,
DATA_LOCAL_MAPS, RACK_LOCAL_MAPS. A Map Task is considered a "remote-map" iff the input split
returns a set of locations, but none is chosen to execute the map task.

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