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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-12217) System load average based client pushback
Date Thu, 03 Aug 2017 00:52:00 GMT

    [ https://issues.apache.org/jira/browse/HBASE-12217?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16111993#comment-16111993
] 

stack commented on HBASE-12217:
-------------------------------

Unscheduling good idea that has not seen progress in a while.

> System load average based client pushback
> -----------------------------------------
>
>                 Key: HBASE-12217
>                 URL: https://issues.apache.org/jira/browse/HBASE-12217
>             Project: HBase
>          Issue Type: New Feature
>            Reporter: Andrew Purtell
>            Assignee: Andrew Purtell
>
> If a RegionServer host is already heavily loaded* then it might not be best to accept
more work in the form of coprocessor invocations. This could generalize to all RPC work, perhaps
as part of a broader admission control initiative, but I think it makes sense to start small
in an obvious place.
> *: We could use % CPU utilization or the UNIX 1min or 5min load average to determine
this, and provide an option for choosing between those alternatives. 



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