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From "Hive QA (Jira)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-22971) Eliminate file rename in insert-only compactor
Date Wed, 20 May 2020 18:52:00 GMT

    [ https://issues.apache.org/jira/browse/HIVE-22971?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17112533#comment-17112533
] 

Hive QA commented on HIVE-22971:
--------------------------------



Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/13003515/HIVE-22971.06.patch

{color:green}SUCCESS:{color} +1 due to 2 test(s) being added or modified.

{color:green}SUCCESS:{color} +1 due to 17276 tests passed

Test results: https://builds.apache.org/job/PreCommit-HIVE-Build/22500/testReport
Console output: https://builds.apache.org/job/PreCommit-HIVE-Build/22500/console
Test logs: http://104.198.109.242/logs/PreCommit-HIVE-Build-22500/

Messages:
{noformat}
Executing org.apache.hive.ptest.execution.TestCheckPhase
Executing org.apache.hive.ptest.execution.PrepPhase
Executing org.apache.hive.ptest.execution.YetusPhase
Executing org.apache.hive.ptest.execution.ExecutionPhase
Executing org.apache.hive.ptest.execution.ReportingPhase
{noformat}

This message is automatically generated.

ATTACHMENT ID: 13003515 - PreCommit-HIVE-Build

> Eliminate file rename in insert-only compactor
> ----------------------------------------------
>
>                 Key: HIVE-22971
>                 URL: https://issues.apache.org/jira/browse/HIVE-22971
>             Project: Hive
>          Issue Type: Improvement
>            Reporter: Karen Coppage
>            Assignee: Karen Coppage
>            Priority: Major
>              Labels: ACID, compaction
>         Attachments: HIVE-22971.01.patch, HIVE-22971.02.patch, HIVE-22971.03.patch, HIVE-22971.04.patch,
HIVE-22971.05.patch, HIVE-22971.06.patch, HIVE-22971.06.patch, HIVE-22971.06.patch, HIVE-22971.06.patch
>
>
> File rename is expensive for object stores, so MM (insert-only) compaction should skip
that step when committing and write directly to base_x_cZ or delta_x_y_cZ.
> This also fixes the issue that for MM QB compaction the temp tables were stored under
the table directory, and these temp dirs were never cleaned up.



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