[jira] [Resolved] (HBASE-28346) Expose checkQuota to Coprocessor Endpoints

["Nick Dimiduk (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HBASE-28346?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Nick Dimiduk resolved HBASE-28346.
----------------------------------
    Resolution: Fixed

> Expose checkQuota to Coprocessor Endpoints
> ------------------------------------------
>
>                 Key: HBASE-28346
>                 URL: https://issues.apache.org/jira/browse/HBASE-28346
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Bryan Beaudreault
>            Assignee: Charles Connell
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 2.7.0, 3.0.0-beta-2, 2.6.1
>
>
> Coprocessor endpoints may do non-trivial amounts of work, yet quotas do not throttle them. We can't generically apply quotas to coprocessors because we have no information on what a particular endpoint might do. One thing we could do is expose checkQuota to the RegionCoprocessorEnvironment. This way, coprocessor authors have the tools to ensure that quotas cover their implementations.
> While adding this, we can update AggregationImplementation to call checkQuota since those endpoints can be quite expensive.



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