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From "Todd Lipcon (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-4507) Create checkAndPut variant that exposes timestamp / UUID
Date Fri, 30 Sep 2011 22:31:46 GMT

    [ https://issues.apache.org/jira/browse/HBASE-4507?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13118521#comment-13118521
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Todd Lipcon commented on HBASE-4507:
------------------------------------

bq. So, each time we set a region location (hostname + port + startcode), we'd also update
a new column, say info:editid, which would have a uuid value. We'd then do checkAndPut on
the info:editid column?

Yep, exactly. With this method we wouldn't have to change/add APIs here...


bq. We'd still need to read whatever this value was at start of region open.
Right, but you have to do that with the timestamp method, too.
                
> Create checkAndPut variant that exposes timestamp / UUID
> --------------------------------------------------------
>
>                 Key: HBASE-4507
>                 URL: https://issues.apache.org/jira/browse/HBASE-4507
>             Project: HBase
>          Issue Type: Sub-task
>            Reporter: Ted Yu
>            Assignee: stack
>
> Michael checked the checkAndPut which doesn't expose timestamp. A variant of checkAndPut
should be created to expose timestamp which is written into a column specified by additional
parameters.

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