Suresh Srinivas created HDFS-4123:
-------------------------------------

             Summary: HDFS logs should print stack trace and add a comment 
where it is intentionally not printed
                 Key: HDFS-4123
                 URL: https://issues.apache.org/jira/browse/HDFS-4123
             Project: Hadoop HDFS
          Issue Type: Improvement
            Reporter: Suresh Srinivas
            Priority: Minor


Review the code and change the logs to print stack trace by changing the code 
from:
{noformat}
  LOG.info("message" + exception)
{noformat}

to:
{noformat}
  LOG.info("message", exception)
{noformat}

Where printing exception stack trace is avoided, add a comment to indicate that 
intent, to avoid someone changing it to print full stack trace.

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