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https://issues.apache.org/jira/browse/HBASE-5515?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13222843#comment-13222843
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Phabricator commented on HBASE-5515:
------------------------------------
lhofhansl has commented on the revision "HBASE-5515 [jira] Add a processRow API
that supports atomic multiple reads and writes on a row".
@sc:
"It will be nice to have some API that can allows simple control on
lock/mvcc. That will be very powerful."
But you do not want to do it for this issue? ;-)
My point is that a RowProcessor implementation class is what coprocessor
endpoints were meant for (server side custom code) - with the caveat that
coprocessors currently do not have enough access to regionserver details.
REVISION DETAIL
https://reviews.facebook.net/D2067
> Add a processRow API that supports atomic multiple reads and writes on a row
> ----------------------------------------------------------------------------
>
> Key: HBASE-5515
> URL: https://issues.apache.org/jira/browse/HBASE-5515
> Project: HBase
> Issue Type: New Feature
> Reporter: Scott Chen
> Assignee: Scott Chen
> Attachments: HBASE-5515.D2067.1.patch, HBASE-5515.D2067.10.patch,
> HBASE-5515.D2067.11.patch, HBASE-5515.D2067.12.patch,
> HBASE-5515.D2067.13.patch, HBASE-5515.D2067.2.patch,
> HBASE-5515.D2067.3.patch, HBASE-5515.D2067.4.patch, HBASE-5515.D2067.5.patch,
> HBASE-5515.D2067.6.patch, HBASE-5515.D2067.7.patch, HBASE-5515.D2067.8.patch,
> HBASE-5515.D2067.9.patch
>
>
> We have modified HRegion.java internally to do some atomic row processing. It
> will be nice to have a plugable API for this.
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