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https://issues.apache.org/jira/browse/HBASE-13351?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14496820#comment-14496820
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Mikhail Antonov commented on HBASE-13351:
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Yeah, you're right, that's I've seen there too in ConnectionAdapter impl we're
using there.
Regarding issue at hand - I _think_ for real cluster the percentage of all
admin-QoS rpcs (as you enumeratad here) is still tiny % of all rpc requests,
but for our miniclusters, so this patch looks good to me (if we could get the
clean hadoop-qa run, perhaps bumping default metahandler count to 20? seems
like it's prudent change to do regardless of the fix in SSC?)
> 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-v2.patch,
> HBASE-13351-v3.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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