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From "Amar Kamat (Resolved) (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (MAPREDUCE-3787) [Gridmix] Improve STRESS mode
Date Thu, 23 Feb 2012 11:05:48 GMT

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

Amar Kamat resolved MAPREDUCE-3787.

      Resolution: Fixed
    Release Note: JobMonitor can now deploy multiple threads for faster job-status polling.
Use 'gridmix.job-monitor.thread-count' to set the number of threads. Stress mode now relies
on the updates from the job monitor instead of polling for job status. Failures in job submission
now get reported to the statistics module and ultimately reported to the user via summary.
    Hadoop Flags: Reviewed

I just committed this to trunk! Thanks Ravi for the review.
> [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

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