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https://issues.apache.org/jira/browse/HDFS-16424?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17908005#comment-17908005
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ASF GitHub Bot commented on HDFS-16424:
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hfutatzhanghb closed pull request #3884: HDFS-16424. Add a new requeue rpcmetric
URL: https://github.com/apache/hadoop/pull/3884
> Add a new rpcMetric called requeueTime
> --------------------------------------
>
> Key: HDFS-16424
> URL: https://issues.apache.org/jira/browse/HDFS-16424
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: namenode
> Reporter: farmmamba
> Priority: Minor
> Labels: pull-request-available
> Time Spent: 1h 10m
> Remaining Estimate: 0h
>
> When observer namenode read enabled, if `call.getClientStateId() >
> alignmentContext.getLastSeenStateId()`, the rpc call will be requeued to
> callQueue.
> we need to know rpc requeue metrics to monitor requeue call and its
> performance.
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