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From "Andrew Purtell (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-12217) Load based pushback for coprocessor invocations
Date Thu, 09 Oct 2014 18:41:34 GMT

     [ https://issues.apache.org/jira/browse/HBASE-12217?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Andrew Purtell updated HBASE-12217:
-----------------------------------
    Fix Version/s: 0.99.1
                   0.98.8
                   2.0.0
         Assignee: Andrew Purtell

I'm going to schedule this for 0.98.8 and let's see what happens

> Load based pushback for coprocessor invocations
> -----------------------------------------------
>
>                 Key: HBASE-12217
>                 URL: https://issues.apache.org/jira/browse/HBASE-12217
>             Project: HBase
>          Issue Type: New Feature
>            Reporter: Andrew Purtell
>            Assignee: Andrew Purtell
>             Fix For: 2.0.0, 0.98.8, 0.99.1
>
>
> 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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