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https://issues.apache.org/jira/browse/HBASE-17114?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yu Li updated HBASE-17114:
--------------------------
    Release Note: In HBASE-17114 we introduced a new property 
hbase.client.pause.cqtbe which makes it possible to set a longer pause for 
CallQueueTooBigException (CQTBE), it's disabled by default and 
hbase.client.pause will still be used for CQTBE. Set this property to a higher 
value if you observe frequent CQTBE from the same        RegionServer and the 
call queue there keeps full  (was: In HBASE-17114 we introduced a new property 
hbase.client.pause.cqtbe which makes it possible to set a longer pause for 
CallQueueTooBigException (CQTBE), it's disabled by default and 
{{hbase.client.pause}} will still be used for CQTBE. Set this property to a 
higher value if you observe frequent CQTBE from the same      RegionServer and 
the call queue there keeps full)

> Add an option to set special retry pause when encountering 
> CallQueueTooBigException
> -----------------------------------------------------------------------------------
>
>                 Key: HBASE-17114
>                 URL: https://issues.apache.org/jira/browse/HBASE-17114
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Yu Li
>            Assignee: Yu Li
>         Attachments: HBASE-17114.patch, HBASE-17114.v2.patch, 
> HBASE-17114.v3.patch
>
>
> As titled, after HBASE-15146 we will throw {{CallQueueTooBigException}} 
> instead of dead-wait. This is good for performance for most cases but might 
> cause a side-effect that if too many clients connect to the busy RS, that the 
> retry requests may come over and over again and RS never got the chance for 
> recovering, and the issue will become especially critical when the target 
> region is META.
> So here in this JIRA we propose to add a new property in name of 
> {{hbase.client.pause.cqtbe}} to make it possible to set a special-longer 
> pause for CallQueueTooBigException, and by default it will use the setting of 
> {{hbase.client.pause}}



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