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https://issues.apache.org/jira/browse/HADOOP-2611?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Bryan Duxbury updated HADOOP-2611:
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Fix Version/s: 0.17.0
Priority: Major (was: Minor)
Summary: [hbase] Make BatchUpdate public in the API (was: [hbase]
Create a RowMutation class in the public API)
> [hbase] Make BatchUpdate public in the API
> ------------------------------------------
>
> Key: HADOOP-2611
> URL: https://issues.apache.org/jira/browse/HADOOP-2611
> Project: Hadoop Core
> Issue Type: New Feature
> Components: contrib/hbase
> Reporter: Bryan Duxbury
> Assignee: Bryan Duxbury
> Fix For: 0.17.0
>
> Attachments: 2611.patch
>
>
> Today, when you want to interact with a row in HBase, you start an update,
> make changes, and then commit the lock. This is fine for very simple
> applications. However, when you try to do things like support table
> operations as part of a MapReduce job, it becomes more difficult to support.
> I propose that we create a new class, RowMutation (a la the Bigtable paper),
> which encapsulates a group of actions on a row, and make this available to
> API consumers. It might look something like:
> {code}
> RowMutation r = table.getMutation(row_key);
> r.setTimestamp(1111);
> r.put(new Text("colfam1:name", value));
> r.delete(new Text("colfam2:deleted"));
> table.commit(r);
> {code}
> This syntax would supercede the existing startUpdate/commit format, which
> could be deprecated and mapped to a RowMutation behind the scenes.
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