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https://issues.apache.org/jira/browse/HBASE-26809?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17528796#comment-17528796
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Bryan Beaudreault commented on HBASE-26809:
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FYI that since HBASE-26807, we now have an
{{HBaseServerException.isServerOverloaded(throwable)}} method. We should
probably use that here rather than special case the 2 exceptions listed in the
description.
> Report client backoff time for server overloaded in ConnectionMetrics
> ---------------------------------------------------------------------
>
> Key: HBASE-26809
> URL: https://issues.apache.org/jira/browse/HBASE-26809
> Project: HBase
> Issue Type: New Feature
> Reporter: Bryan Beaudreault
> Assignee: Briana Augenreich
> Priority: Major
>
> Servers can throw CallQueueTooBigException and CallDroppedException when
> overloaded. As of HBASE-26807, these can have a configurable extra backoff to
> allow the server to recover. Depending on the server side queue
> implementation, different callers may be more or less impacted by server
> load. It is very useful to measure in the client how much time is spent
> backing off so we can see which clients are most affected by server overload.
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