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https://issues.apache.org/jira/browse/PHOENIX-3482?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15667634#comment-15667634
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James Taylor commented on PHOENIX-3482:
---------------------------------------

Agreed, [~samarthjain], we'll need to do that unless you can come up with a 
work around. Is it the Delete that's not working? Maybe we can set to a 
different value and adjust the checkAndPut condition? See if you can come up 
with a workaround.

> Provide a work around for HBASE-17096
> -------------------------------------
>
>                 Key: PHOENIX-3482
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-3482
>             Project: Phoenix
>          Issue Type: Bug
>            Reporter: Samarth Jain
>
> HBASE-17096 causes failures in 
> UpgradeIT#testAcquiringAndReleasingUpgradeMutex. Essentially releasing of the 
> upgrade mutex by using the checkAndMutate api isn't working correctly. A 
> simple though not ideal work around would be to not call releaseMutex() and 
> let the lock expire by the virtue of TTL set on the cell. The side effect is 
> that if a client encounters and exception while executing the upgrade code, 
> then a new client won't be able to initiate the upgrade till the TTL expires. 
>  



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