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https://issues.apache.org/jira/browse/HDFS-17290?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated HDFS-17290:
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Labels: pull-request-available (was: )
> HDFS: add client rpc backoff metrics due to throttling from lowest priority
> queue
> ---------------------------------------------------------------------------------
>
> Key: HDFS-17290
> URL: https://issues.apache.org/jira/browse/HDFS-17290
> Project: Hadoop HDFS
> Issue Type: Bug
> Affects Versions: 2.10.0, 3.3.6
> Reporter: Lei Yang
> Assignee: Lei Yang
> Priority: Major
> Labels: pull-request-available
>
> Clients are backoff when rpcs cannot be enqueued. However there are cases
> when this could happen. Example assumes prio
>
> # Client are directly enqueued into lowest priority queue and backoff when
> lowest queue is full. Client are expected to disconnect from namenode.
> # Client are enqueued into non-lowest priority queue and overflowed all the
> way down to lowest priority queue and back off. In this case, connection
> between client and namenode remains open.
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