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From "Clint Morgan (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HBASE-669) MultiRegion transactions with Optimistic Concurrency Control
Date Mon, 16 Jun 2008 18:59:46 GMT

     [ https://issues.apache.org/jira/browse/HBASE-669?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Clint Morgan updated HBASE-669:
-------------------------------

    Attachment: hbase-669-v4.patch

Latest patch. Testing of hlog recovery. 

> 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
>         Attachments: hbase-669-v2.patch, hbase-669-v3.patch, hbase-669-v4.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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