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https://issues.apache.org/jira/browse/HBASE-28238?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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selina.yan reassigned HBASE-28238:
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Assignee: selina.yan
> rsrpcservice should perform the updateConfiguration operation to priority
> @QosPriority(priority = HConstants.ADMIN_QOS)
> ------------------------------------------------------------------------------------------------------------------------
>
> Key: HBASE-28238
> URL: https://issues.apache.org/jira/browse/HBASE-28238
> Project: HBase
> Issue Type: Improvement
> Affects Versions: 2.5.0
> Reporter: selina.yan
> Assignee: selina.yan
> Priority: Minor
>
> The updateConfiguration operation called by admin should be considered a
> higher priority operation and given to the priority queue, but is currently
> considered to have the same priority as read and write requests. If the
> handle is occupied, the configuration cannot be updated. In fact, in our
> scenario, some abnormal phoenix sql is killed by controlling the amount of
> data that scan can filter with dynamic parameters. Abnormal sql often results
> in a full handle. In this case, the configuration cannot be dynamically
> modified to implement emergency traffic limiting.
> {code:java}
> @Override
> @QosPriority(priority = HConstants.ADMIN_QOS)
> public UpdateConfigurationResponse updateConfiguration(
> RpcController controller, UpdateConfigurationRequest request)
> throws ServiceException {{code}
>
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