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https://issues.apache.org/jira/browse/HBASE-29469?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18013246#comment-18013246
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Charles Connell commented on HBASE-29469:
-----------------------------------------
I've merged the PR and cherry-picked to branch-3. The cherry-pick doesn't apply
cleanly to branch-2. [~skhillon] please open a PR against branch-2.
> Add RPC throttling metrics to RegionServer for quota monitoring
> ---------------------------------------------------------------
>
> Key: HBASE-29469
> URL: https://issues.apache.org/jira/browse/HBASE-29469
> Project: HBase
> Issue Type: Improvement
> Components: metrics
> Affects Versions: 3.0.0, 2.6.3
> Reporter: Sid Khillon
> Priority: Minor
> Labels: pull-request-available
>
> HBase's throttling system throws RpcThrottlingException when limits are
> exceeded, but no detailed metrics exist which show the users, tables, or
> throttle types affected. This makes it difficult to identify or monitor
> throttling patterns.
> This enhancement adds contextual throttling metrics by capturing available
> information (throttle type, user, table) in the exception handlers for the
> RpcThrottlingException.
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