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https://issues.apache.org/jira/browse/PHOENIX-916?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13963620#comment-13963620
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James Taylor commented on PHOENIX-916:
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Please add your new config param ("phoenix.clock.skew.interval") as static 
constant in org.apache.phoenix.query.QueryServices and add your default (2000) 
as a static constant in org.apache.phoenix.query.QueryServicesOptions.

Also, please document in the table on this page as well: 
http://phoenix.incubator.apache.org/tuning.html

One minor nit: I don't think the if (env == null)  check is necessary.


> Time clock skew issue when SYSTEM.CATALOG moves between region servers
> ----------------------------------------------------------------------
>
>                 Key: PHOENIX-916
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-916
>             Project: Phoenix
>          Issue Type: Bug
>    Affects Versions: 3.0.0, 4.0.0, 5.0.0
>            Reporter: Jeffrey Zhong
>            Assignee: Jeffrey Zhong
>            Priority: Critical
>         Attachments: phoenix-916-v2.patch, phoenix-916.patch
>
>
> Since we rely on the sever time stamp of RS which is hosting SYSTEM.CATALOG. 
> When the table moves to another region server, the server time may 
> decrease(increasing is all right). This may cause a query doesn't return 
> anything though it should be.



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