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From James Taylor <jamestay...@apache.org>
Subject Re: optimistic lock in phenix
Date Wed, 30 Aug 2017 16:53:26 GMT
Upgrade to 4.9 or later and use our atomic upsert command:
http://phoenix.apache.org/atomic_upsert.html

On Wed, Aug 30, 2017 at 9:38 AM Pradheep Shanmugam <
Pradheep.Shanmugam@infor.com> wrote:

> hi,
>
>
> we have a table in phoenix 4.4 which has a modifyrevision as a column..
>
> when a thread updates the row the modifyrevision has to be incremented..
>
> only option i can see is to use the upsert select to get the latest
> revision but since it is not atomic how do we avoid the dirty reads?is
> there any other way this can be done?
>
>
> Thanks,
>
> Pradheep
>

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