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https://issues.apache.org/jira/browse/YARN-3652?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14701291#comment-14701291
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Xianyin Xin commented on YARN-3652:
-----------------------------------
A simple introduction of the preview patch: SchedulerMetrics is focus on
metrics that related to the scheduler's performace. The following metrics are
considered:
num of waiting events in the scheduler dispatch queue;
num of all kinds events in the scheduler dispatch queue;
events handling rate;
node update handling rate;
events adding rate;
node update adding rate;
statistical info of num of waiting events;
statistical info of num of waiting node update events;
containers allocation rate;
scheduling method exec rate, i.e., num of scheduling tries per second;
app allocation call duration;
nodeUpdate call duration;
scheduling call duration;
These metrics give rich information of the scheduler performance, which can be
used to diagnose the anomaly of the scheduler.
> A SchedulerMetrics may be need for evaluating the scheduler's performance
> -------------------------------------------------------------------------
>
> Key: YARN-3652
> URL: https://issues.apache.org/jira/browse/YARN-3652
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: resourcemanager, scheduler
> Reporter: Xianyin Xin
> Attachments: YARN-3652-preview.patch
>
>
> As discussed in YARN-3630, a {{SchedulerMetrics}} may be need for evaluating
> the scheduler's performance. The performance indexes includes #events waiting
> for being handled by scheduler, the throughput, the scheduling delay and/or
> other indicators.
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