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https://issues.apache.org/jira/browse/HADOOP-18060?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hui Fei resolved HADOOP-18060.
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Fix Version/s: 3.4.0
Resolution: Fixed
> RPCMetrics increases the number of handlers in processing
> ---------------------------------------------------------
>
> Key: HADOOP-18060
> URL: https://issues.apache.org/jira/browse/HADOOP-18060
> Project: Hadoop Common
> Issue Type: Improvement
> Components: rpc-server
> Affects Versions: 2.9.2
> Reporter: JiangHua Zhu
> Assignee: JiangHua Zhu
> Priority: Major
> Labels: pull-request-available
> Fix For: 3.4.0
>
> Time Spent: 2h 50m
> Remaining Estimate: 0h
>
> When using RPC, we recorded a lot of useful information, such as Queue time,
> Processing time. These are very helpful.
> But we can't know how many handlers are actually working now (only those that
> handle Call), especially when the Call Queue is very high. This is also not
> conducive to us optimizing the cluster.
> It would be very helpful if we can see the number of handlers being processed
> in RPCMetrics.
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