[jira] [Created] (MAPREDUCE-7339) Default Speculatoor returns speculationValue as TOO_LATE_TO_SPECULATE or PROGRESS_IS_GOOD eve if the task is ALREADY_SPECULATING

["Mudit Sharma (Jira)" <ji...@apache.org>]

Mudit Sharma created MAPREDUCE-7339:
---------------------------------------

             Summary: Default Speculatoor returns speculationValue as TOO_LATE_TO_SPECULATE or PROGRESS_IS_GOOD eve if the task is ALREADY_SPECULATING
                 Key: MAPREDUCE-7339
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-7339
             Project: Hadoop Map/Reduce
          Issue Type: Bug
            Reporter: Mudit Sharma


DefaultSpeculator implementation in Mapreduce returns some MAGIC numbers in speculationValue if the tasks is not a good candidate for speculation. It returns these values:

 
{noformat}
returns ALREADY_SPECULATING if that is true. This has priority.
returns TOO_NEW if our companion task hasn't gotten any information
returns PROGRESS_IS_GOOD if the task is sailing through
returns NOT_RUNNING if the task is not running{noformat}
 

 

{color:#172b4d}But there is one bug, due to which even if task is speculating, but if its progress is good or its too late to speculate, code returns TOO_LATE_TO_SPECULATE or PROGRESS_IS_GOOD and not ALREADY_SPECULATING{color}



--
This message was sent by Atlassian Jira
(v8.3.4#803005)

---------------------------------------------------------------------
To unsubscribe, e-mail: mapreduce-issues-unsubscribe@hadoop.apache.org
For additional commands, e-mail: mapreduce-issues-help@hadoop.apache.org