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https://issues.apache.org/jira/browse/HBASE-25116?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17226881#comment-17226881
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Michael Stack commented on HBASE-25116:
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What is about the canary access that slows user-requests?
Should these options be made into command-line options for the Canary tool
rather than internal configs?
We are playing w/ 'task' counts in the patch. A task maps to a Region? Would
it help if we talked of sampling rather than task counts? A command-line option
that took a sample float? If you passed --sample=0.1 or --table_sample=0.1 (or
-Dcanary.sample...... ) on the command-line, would that be easier on the
operator? It would make the feature easier to find if it showed in the canary
--help usage?
> RegionMonitor support RegionTask count normalize
> ------------------------------------------------
>
> Key: HBASE-25116
> URL: https://issues.apache.org/jira/browse/HBASE-25116
> Project: HBase
> Issue Type: Improvement
> Reporter: niuyulin
> Assignee: niuyulin
> Priority: Minor
>
> large count of region task from canary may affect user normal request,
> meanwhile if region task is few, the availability monitoring may shake for
> occasional exception.
> so , if the task count is large , we will randomly trim tasks for each table,
> according to the raito of the table region count in whole tasks region count.
> If the task count is few, we will repeat tasks
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