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Posted to issues@hive.apache.org by "Steve Yeom (JIRA)" <ji...@apache.org> on 2018/02/16 04:32:00 UTC
[jira] [Comment Edited] (HIVE-18693) Snapshot Isolation does not
work for Micromanaged table when a insert transaction is aborted
[ https://issues.apache.org/jira/browse/HIVE-18693?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16366597#comment-16366597 ]
Steve Yeom edited comment on HIVE-18693 at 2/16/18 4:31 AM:
------------------------------------------------------------
Eugene also mentioned possible bottleneck in Cleaner.
If possible, we can introduce parallelism whereever possible, if
it is better in performance.
was (Author: steveyeom2017):
Eugene also mentioned possible bottleneck in Cleaner.
If possible, we can introduce parallelism whereever possible.
> Snapshot Isolation does not work for Micromanaged table when a insert transaction is aborted
> --------------------------------------------------------------------------------------------
>
> 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
> Attachments: HIVE-18693.01.patch
>
>
> 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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