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https://issues.apache.org/jira/browse/HIVE-12902?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15118178#comment-15118178
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Eugene Koifman commented on HIVE-12902:
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this adds TestCompactor. writeBetweenWorkerAndCleaner() which must a merge error
this test is in TestTxnCommands2

otherwise +1

> Refactor TxnHandler to be an interface
> --------------------------------------
>
>                 Key: HIVE-12902
>                 URL: https://issues.apache.org/jira/browse/HIVE-12902
>             Project: Hive
>          Issue Type: Improvement
>          Components: Metastore, Transactions
>    Affects Versions: 2.0.0
>            Reporter: Alan Gates
>            Assignee: Alan Gates
>         Attachments: HIVE-12902.2.patch, HIVE-12902.patch
>
>
> TxnHandler (and it's extender CompactionTxnHandler) implement the transaction 
> functionality in the metastore.  These need to be re-factored as interfaces 
> so that we can have a separate implementation for the HBase metastore.



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