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https://issues.apache.org/jira/browse/HBASE-29387?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17986338#comment-17986338
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Charles Connell commented on HBASE-29387:
-----------------------------------------

Merged PR to master, and cherry-picked to branch-3, branch-2, branch-2.6.

> Reload quotas from hbase:quota table when changes are made
> ----------------------------------------------------------
>
>                 Key: HBASE-29387
>                 URL: https://issues.apache.org/jira/browse/HBASE-29387
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Charles Connell
>            Assignee: Charles Connell
>            Priority: Minor
>              Labels: pull-request-available
>
> The {{QuotaRefresherChore}} by default runs every 5 minutes on every 
> RegionServer. This reads the {{hbase:quota}} table, which has a single region 
> hosted on one RegionServer. This means that the larger an HBase cluster 
> grows, the more traffic is directed at the one RegionServer that has the 
> unfortunate role of hosting {{hbase:quota}}.
> In this ticket I will get RegionServers to reload from {{hbase:quota}} when 
> it's modified, and rarely otherwise, to reduce load on the server hosting 
> this table.



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