Hung Tasks never time out. 
---------------------------

                 Key: MAPREDUCE-4089
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4089
             Project: Hadoop Map/Reduce
          Issue Type: Bug
          Components: mrv2
    Affects Versions: 0.23.2, 2.0.0, trunk
            Reporter: Robert Joseph Evans
            Assignee: Robert Joseph Evans
            Priority: Blocker


The AM will timeout a task through mapreduce.task.timeout only when it does not 
hear from the task within the given timeframe.  On 1.0 a task must be making 
progress, either by reading input from HDFS, writing output to HDFS, writing to 
a log, or calling a special method to inform it that it is still making 
progress.

This is because on 0.23 a status update which happens every 3 seconds is 
counted as progress.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators: 
https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira

        

Reply via email to