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stefanlee commented on YARN-7672:
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[~yufeigu] [~ywskycn] could you please tell me whether or not the value of *yarn.scheduler.fair.max.assign* can increase
the containers which the FairScheduler assigned , i set this value to *2* and run SLS in
the first round, then next round i update this value to *8* and run SLS again . After that,
i found there is no different between their assign ability. (i have enabled *yarn.scheduler.fair.assignmultiple*
and disabled *continuous-scheduling*)
thanks.
> 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
> Priority: Major
> 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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