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https://issues.apache.org/jira/browse/MAPREDUCE-1229?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12784391#action_12784391
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Hong Tang commented on MAPREDUCE-1229:
--------------------------------------
Sample test output after the patch - as we can see, the jobs are submitted to
the cluster within the first 20ms.
{noformat}
Job job_200904211745_0002 is submitted at 1259697521583
1259697521583 Overloaded is false: incompleteMapTasks <= 2.0*mapSlotCapacity
(20.0 <= 2.0*4635)
Job job_200904211745_0003 is submitted at 1259697521584
1259697521584 Overloaded is false: incompleteMapTasks <= 2.0*mapSlotCapacity
(23.0 <= 2.0*4635)
Job job_200904211745_0004 is submitted at 1259697521585
1259697521585 Overloaded is false: incompleteMapTasks <= 2.0*mapSlotCapacity
(154.0 <= 2.0*4635)
Job job_200904211745_0005 is submitted at 1259697521586
1259697521586 Overloaded is false: incompleteMapTasks <= 2.0*mapSlotCapacity
(174.0 <= 2.0*4635)
Job job_200904211745_0006 is submitted at 1259697521587
1259697521587 Overloaded is false: incompleteMapTasks <= 2.0*mapSlotCapacity
(209.0 <= 2.0*4635)
Job job_200904211745_0007 is submitted at 1259697521588
1259697521588 Overloaded is false: incompleteMapTasks <= 2.0*mapSlotCapacity
(3413.0 <= 2.0*4635)
Job job_200904211745_0008 is submitted at 1259697521589
1259697521589 Overloaded is false: incompleteMapTasks <= 2.0*mapSlotCapacity
(6617.0 <= 2.0*4635)
Job job_200904211745_0009 is submitted at 1259697521590
1259697521590 Overloaded is false: incompleteMapTasks <= 2.0*mapSlotCapacity
(6718.0 <= 2.0*4635)
Job job_200904211745_0010 is submitted at 1259697521591
1259697521591 Overloaded is false: incompleteMapTasks <= 2.0*mapSlotCapacity
(6719.0 <= 2.0*4635)
Job job_200904211745_0011 is submitted at 1259697521592
1259697521592 Overloaded is false: incompleteMapTasks <= 2.0*mapSlotCapacity
(7219.0 <= 2.0*4635)
Job job_200904211745_0012 is submitted at 1259697521593
1259697521593 Overloaded is false: incompleteMapTasks <= 2.0*mapSlotCapacity
(7220.0 <= 2.0*4635)
Job job_200904211745_0013 is submitted at 1259697521594
1259697521594 Overloaded is false: incompleteMapTasks <= 2.0*mapSlotCapacity
(7240.0 <= 2.0*4635)
Job job_200904211745_0015 is submitted at 1259697521595
1259697521595 Overloaded is false: incompleteMapTasks <= 2.0*mapSlotCapacity
(7241.0 <= 2.0*4635)
Job job_200904211745_0014 is submitted at 1259697521596
1259697521596 Overloaded is false: incompleteMapTasks <= 2.0*mapSlotCapacity
(7242.0 <= 2.0*4635)
Job job_200904211745_0016 is submitted at 1259697521597
1259697521597 Overloaded is false: incompleteMapTasks <= 2.0*mapSlotCapacity
(7742.0 <= 2.0*4635)
Job job_200904211745_0018 is submitted at 1259697521598
1259697521598 Overloaded is false: incompleteMapTasks <= 2.0*mapSlotCapacity
(8242.0 <= 2.0*4635)
Job job_200904211745_0019 is submitted at 1259697521599
1259697521599 Overloaded is false: incompleteMapTasks <= 2.0*mapSlotCapacity
(8243.0 <= 2.0*4635)
Job job_200904211745_0017 is submitted at 1259697521600
1259697521600 Overloaded is false: incompleteMapTasks <= 2.0*mapSlotCapacity
(8244.0 <= 2.0*4635)
Job job_200904211745_0020 is submitted at 1259697521601
{noformat}
> [Mumak] Allow customization of job submission policy
> ----------------------------------------------------
>
> Key: MAPREDUCE-1229
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-1229
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: contrib/mumak
> Affects Versions: 0.21.0, 0.22.0
> Reporter: Hong Tang
> Assignee: Hong Tang
> Fix For: 0.21.0, 0.22.0
>
> Attachments: mapreduce-1229-20091121.patch,
> mapreduce-1229-20091123.patch, mapreduce-1229-20091130.patch,
> mapreduce-1229-20091201.patch
>
>
> Currently, mumak replay job submission faithfully. To make mumak useful for
> evaluation purposes, it would be great if we can support other job submission
> policies such as sequential job submission, or stress job submission.
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