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https://issues.apache.org/jira/browse/HBASE-4477?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jonathan Gray resolved HBASE-4477.
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Resolution: Fixed
Fix Version/s: 0.92.0
Hadoop Flags: Reviewed
Committed to trunk and 92 branch. Thanks for all the reviews and feedback all,
nice stuff Dhruba. Dhruba opened HBASE-4514 for the follow-up discussed here.
> Ability for an application to store metadata into the transaction log
> ---------------------------------------------------------------------
>
> Key: HBASE-4477
> URL: https://issues.apache.org/jira/browse/HBASE-4477
> Project: HBase
> Issue Type: Improvement
> Reporter: dhruba borthakur
> Assignee: dhruba borthakur
> Fix For: 0.92.0
>
> Attachments: coprocessorPut1.txt, coprocessorPut2.txt,
> hlogMetadata1.txt
>
>
> mySQL allows an application to store an arbitrary blob along with each
> transaction in its transaction logs. This JIRA is to have a similar feature
> request for HBASE.
> The use case is as follows: An application on one data center A stores a blob
> of data along with each transaction. A replication software picks up these
> blobs from the transaction logs in A and hands it to another instance of the
> same application running on a remote data center B. The application in B is
> responsible for applying this to the remote Hbase cluster (and also handle
> conflict resolution if any).
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