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https://issues.apache.org/jira/browse/HBASE-669?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12623220#action_12623220
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Michael Gottesman commented on HBASE-669:
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+1. I have been using this without any issues for the past few weeks.
> MultiRegion transactions with Optimistic Concurrency Control
> ------------------------------------------------------------
>
> Key: HBASE-669
> URL: https://issues.apache.org/jira/browse/HBASE-669
> Project: Hadoop HBase
> Issue Type: New Feature
> Components: client, ipc, regionserver
> Reporter: Clint Morgan
> Assignee: Clint Morgan
> Fix For: 0.3.0
>
> Attachments: hbase-669-v2.patch, hbase-669-v3.patch,
> hbase-669-v4.patch, hbase-669-v5.patch, hbase-669.patch, hbase-669.patch,
> hbase-669.patch
>
>
> We have a need for ACID transactions across tables. This issue is about
> adding transactions which span multiple regions. We do not envision many
> competing writes, and will be read-dominated in general. This makes
> Optimistic Concurrency Control (OCC) seem like the way to go.
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