D M Murali Krishna Reddy created MAPREDUCE-7344:
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             Summary: Improve logging by removing string Concatenation and 
change level of logs from INFO to WARN
                 Key: MAPREDUCE-7344
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-7344
             Project: Hadoop Map/Reduce
          Issue Type: Improvement
            Reporter: D M Murali Krishna Reddy
            Assignee: D M Murali Krishna Reddy


1. Currently in few of debug logs string Concatenation is performed without any 
debug check, this can be fixed by passing the variables as arguments.

2. Few logs while catching exception can be moved from INFO to WARN.



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