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From "Amar Kamat (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MAPREDUCE-3787) [Gridmix] Improve STRESS mode
Date Thu, 23 Feb 2012 09:53:48 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-3787?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Amar Kamat updated MAPREDUCE-3787:
----------------------------------

    Attachment: MAPREDUCE-3787-v1.12.patch

Attaching a patch with more enhancements and documentation. Adding extra DEBUG logs. test-patch
and JUnit tests passed.
                
> [Gridmix] Improve STRESS mode
> -----------------------------
>
>                 Key: MAPREDUCE-3787
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3787
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>          Components: contrib/gridmix
>    Affects Versions: 0.24.0
>            Reporter: Amar Kamat
>            Assignee: Amar Kamat
>              Labels: gridmix, stress
>             Fix For: 0.23.1
>
>         Attachments: MAPREDUCE-3787-v1.12.patch, MAPREDUCE-3787-v1.9.patch
>
>
> Gridmix STRESS mode can be improved as follows:
> 1. The sleep time in JobMonitor can be reduced and/or made configurable
> 2. Map and reduce load calculation in StressJobFactory can be done in one loop
> 3. Updating the overload status from the job submitter thread (inline)
> 4. Optimizations to avoid un-necessary progress check (which inturn would result into
delay)

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