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From "Jian Fang (JIRA)" <j...@apache.org>
Subject [jira] [Created] (YARN-3130) Progress report log is incredibly excessive in application master
Date Tue, 03 Feb 2015 19:06:34 GMT
Jian Fang created YARN-3130:
-------------------------------

             Summary: Progress report log is incredibly excessive in application master
                 Key: YARN-3130
                 URL: https://issues.apache.org/jira/browse/YARN-3130
             Project: Hadoop YARN
          Issue Type: Bug
          Components: applications
    Affects Versions: 2.4.0
            Reporter: Jian Fang


We saw incredibly excessive logs in application master for a long running one with many task
attempts. The log write rate is around 1MB/sec in some cases. 

Most of the log entries were from the progress report such as the following ones.

    2015-02-03 17:46:14,321 INFO [IPC Server handler 56 on 37661] org.apache.hadoop.mapred.TaskAttemptListenerImpl:
Progress of TaskAttempt attempt_1422985365246_0001_m_000000_0 is : 0.15605757
    2015-02-03 17:46:17,581 INFO [IPC Server handler 2 on 37661] org.apache.hadoop.mapred.TaskAttemptListenerImpl:
Progress of TaskAttempt attempt_1422985365246_0001_m_000000_0 is : 0.4108217
    2015-02-03 17:46:20,426 INFO [IPC Server handler 0 on 37661] org.apache.hadoop.mapred.TaskAttemptListenerImpl:
Progress of TaskAttempt attempt_1422985365246_0001_m_000002_0 is : 0.06634143
    2015-02-03 17:46:20,807 INFO [IPC Server handler 4 on 37661] org.apache.hadoop.mapred.TaskAttemptListenerImpl:
Progress of TaskAttempt attempt_1422985365246_0001_m_000000_0 is : 0.55556506
    2015-02-03 17:46:21,013 INFO [IPC Server handler 6 on 37661] org.apache.hadoop.mapred.TaskAttemptListenerImpl:
Progress of TaskAttempt attempt_1422985365246_0001_m_000001_0 is : 0.21723115

Looks like the report interval is controlled by a hard-coded variable PROGRESS_INTERVAL as
3 seconds in class org.apache.hadoop.mapred.Task. We should allow users to set the appropriate
progress interval for their applications.




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