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https://issues.apache.org/jira/browse/HBASE-13351?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14483888#comment-14483888
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Mikhail Antonov commented on HBASE-13351:
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That actually good point about saturation!
If we imagine we have 3 threadpools, (20 -regular, 5 - high, 5 - replication),
for some some reason high QoS threads are saturated (as evidenced by retries),
shall we be able to dynamically try to adjust request QoS to try to sneak in
the other threadpool? :)
> Annotate internal MasterRpcServices methods with admin priority
> ---------------------------------------------------------------
>
> Key: HBASE-13351
> URL: https://issues.apache.org/jira/browse/HBASE-13351
> Project: HBase
> Issue Type: Improvement
> Components: master
> Reporter: Josh Elser
> Assignee: Josh Elser
> Fix For: 2.0.0, 1.1.0
>
> Attachments: HBASE-13351-v1.patch, HBASE-13351.patch
>
>
> HBASE-12071, among other things, introduced annotating RPC methods to give
> certain methods priority over others. Namely, this helps ensure that client
> requests cannot starve out internal RPC between master and regionserver.
> Similarly, we can do the same thing for Master RPC methods that are invoked
> by RS's.
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