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https://issues.apache.org/jira/browse/HADOOP-18446?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17605934#comment-17605934
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ASF GitHub Bot commented on HADOOP-18446:
-----------------------------------------
xkrogen merged PR #4871:
URL: https://github.com/apache/hadoop/pull/4871
> Add a re-queue metric to RpcMetrics.java to quantify the number of re-queue
> RPCs
> --------------------------------------------------------------------------------
>
> Key: HADOOP-18446
> URL: https://issues.apache.org/jira/browse/HADOOP-18446
> Project: Hadoop Common
> Issue Type: Improvement
> Reporter: ZanderXu
> Assignee: ZanderXu
> Priority: Minor
> Labels: pull-request-available
>
> Add a reQueue metric to RpcMetrics.java to quantify the number of RPCs
> reQueued.
> Because Observer NameNode will re-queue the rpc if the call processing should
> be postponed.
>
> There is no any metric to quantify the number of re-queue RPCs, so I think we
> should do it.
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