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https://issues.apache.org/jira/browse/PHOENIX-2697?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15155396#comment-15155396
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Lars Hofhansl commented on PHOENIX-2697:
----------------------------------------

Thanks I guess what threw me off was the 4.x-HBase-1.x branch.

> Provide a SERIAL hint
> ---------------------
>
>                 Key: PHOENIX-2697
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-2697
>             Project: Phoenix
>          Issue Type: Bug
>            Reporter: Lars Hofhansl
>            Priority: Minor
>             Fix For: 4.8.0
>
>         Attachments: PHOENIX-2697-4.6.txt
>
>
> Sometime it is useful to force a query to executed serially.
> For example a user might want to run a query which is not latency sensitive 
> to him/her. In that case providing the SERIAL hint puts less load on the 
> HBase cluster and impact other more latency sensitive queries less.
> (In my case I want to use this for testing.)



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