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https://issues.apache.org/jira/browse/YARN-7672?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16296427#comment-16296427
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Wei Yan commented on YARN-7672:
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Interesting to know you guys running 10K node cluster. Do you have more info
why the CPU is 100% full? If it is because of simulating NM/AM, talking to a
real RM wouldn't solve the problem, right?
> hadoop-sls can not simulate huge scale of YARN
> ----------------------------------------------
>
> Key: YARN-7672
> URL: https://issues.apache.org/jira/browse/YARN-7672
> Project: Hadoop YARN
> Issue Type: Improvement
> Reporter: zhangshilong
> Assignee: zhangshilong
> Attachments: YARN-7672.patch
>
>
> Our YARN cluster scale to nearly 10 thousands nodes. We need to do scheduler
> pressure test.
> Using SLS,we start 2000+ threads to simulate NM and AM. But cpu.load very
> high to 100+. I thought that will affect performance evaluation of
> scheduler.
> So I thought to separate the scheduler from the simulator.
> I start a real RM. Then SLS will register nodes to RM,And submit apps to RM
> using RM RPC.
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