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https://issues.apache.org/jira/browse/HBASE-4441?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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stack resolved HBASE-4441.
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Resolution: Won't Fix
This is old. We have some prioritization going on now based off annotations,
whether system table, type of request... (if superuser)....
> Revisit QOS
> -----------
>
> Key: HBASE-4441
> URL: https://issues.apache.org/jira/browse/HBASE-4441
> Project: HBase
> Issue Type: New Feature
> Reporter: Jean-Daniel Cryans
>
> Currently we have a simple QOS model where requests to user tables are using
> one set of handlers and requests to catalog tables and other administrative
> functions are using another set. I'm wondering if it's worth expending this
> model:
> - Do we want to support different priorities for different tables/users
> (when security's enabled)/operations?
> - Do we want finer granularity?
> There's also issues like HBASE-4280 that exposes a case where RS communicate
> between each other and can potentially deadlock if some slowness is going on.
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