Suresh Srinivas created HDFS-4122:
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             Summary: Cleanup HDFS logs and reduce the size of logged messages
                 Key: HDFS-4122
                 URL: https://issues.apache.org/jira/browse/HDFS-4122
             Project: Hadoop HDFS
          Issue Type: Bug
    Affects Versions: 2.0.0-alpha, 1.0.0
            Reporter: Suresh Srinivas
            Assignee: Suresh Srinivas


I have attached the patch that removes unnecessary information from the log 
such as "Namesystem." and prefixing file information with "file" and block 
information with "block" etc.

On a branch-1 log I saw it reduce the log size by ~10%.

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