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From "Phabricator (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-5515) Add a processRow API that supports atomic multiple reads and writes on a row
Date Mon, 05 Mar 2012 23:31:59 GMT

    [ https://issues.apache.org/jira/browse/HBASE-5515?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13222778#comment-13222778

Phabricator commented on HBASE-5515:

sc has commented on the revision "HBASE-5515 [jira] Add a processRow API that supports atomic
multiple reads and writes on a row".

  Ted: Wow, that was super quick! Thanks!

  src/main/java/org/apache/hadoop/hbase/coprocessor/RowProcessor.java:72 This is actually
for the application to override to create their own processor. I should document this more
clearly. I will make the change.

  I am passing the walEdit here because internally we also submit some meta data to walEdit
(kind of like you can send SQL comments to binlog). Basically passing walEdit here allow us
to do more things.
  src/main/java/org/apache/hadoop/hbase/coprocessor/RowProcessor.java:43 good point.
  src/main/java/org/apache/hadoop/hbase/regionserver/HRegion.java:4379 yes. I will make the


> 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.D2067.2.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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