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https://issues.apache.org/jira/browse/MAPREDUCE-2425?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13017315#comment-13017315
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Min Zhou commented on MAPREDUCE-2425:
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btw, this tool can stress RPC as well.
> Distributed simulator for stressing JobTracker and NameNode
> -----------------------------------------------------------
>
> Key: MAPREDUCE-2425
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-2425
> Project: Hadoop Map/Reduce
> Issue Type: New Feature
> Components: benchmarks
> Reporter: Min Zhou
> Labels: benchmark, hadoop
> Fix For: 0.22.0
>
> Attachments: .jpg, screenshot-1.jpg
>
>
> Hadoop need a tool for stressing JobTracker and NameNode. Mumak introduced a
> simulated JobTracker, whose behavior doesn't exactly like that of the real
> JobTracker. Even more, mumak can't simulate a large cluster with quite a lot
> of jobs run on it. On the other hand, Gridmix v3 need hundreds of physical
> nodes to replay job stories.
> You can think this tool a complementation of mumak and gridmix v3. We
> successfully used this tool to simulate a 12000 nodes cluster through 4 real
> machines.
> I've talk to Hong Tang and Scott Chen offline, they suggested me contributing
> this tool to the hadoop community.
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