Colin Patrick McCabe created HDFS-6957:
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             Summary: Allow DFSClient to manually specify that a request should 
be traced
                 Key: HDFS-6957
                 URL: https://issues.apache.org/jira/browse/HDFS-6957
             Project: Hadoop HDFS
          Issue Type: Sub-task
            Reporter: Colin Patrick McCabe


Allow the DFSClient to manually specify that a request should be traced.  One 
easy way to do this might be to have a configuration property that the 
DFSClient reads which causes it to make all its requests traced.  This will 
allow us to more easily diagnose performance problems with a specific file or 
client request type.



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