Steve Yeom commented on HIVE-18693:

The test scenario for this jira is:
1. Create a MM table
2. Insert 2 rows into the table.
3. Create TxnHandler and send a minor compaction request on the table. 
4. Run Compaction Worker to do compaction.
5. Start an insert transaction and roll back this transaction.
6. Execute SELECT command and verify the result set (should be 2 rows).
7. Run Initiator.
8. Execute SELECT command and verify the result set.

> TestTxnCommands2#writeBetweenWorkerAndCleaner fails on MM table
> ---------------------------------------------------------------
>                 Key: HIVE-18693
>                 URL: https://issues.apache.org/jira/browse/HIVE-18693
>             Project: Hive
>          Issue Type: Bug
>          Components: Transactions
>            Reporter: Steve Yeom
>            Assignee: Steve Yeom
>            Priority: Major
> TestTxnCommands2#writeBetweenWorkerAndCleaner with minor 
> changes (changing delete command to insert command) fails on MM table.
> Specifically the last SELECT commands returns wrong results. 
> But this test works fine with full ACID table. 

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