[jira] [Commented] (HIVE-21164) ACID: explore how we can avoid a move step during inserts/compaction

["Marta Kuczora (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HIVE-21164?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16981707#comment-16981707 ] 

Marta Kuczora commented on HIVE-21164:
--------------------------------------

Uploaded an extended patch to see the test results.

> ACID: explore how we can avoid a move step during inserts/compaction
> --------------------------------------------------------------------
>
>                 Key: HIVE-21164
>                 URL: https://issues.apache.org/jira/browse/HIVE-21164
>             Project: Hive
>          Issue Type: Bug
>          Components: Transactions
>    Affects Versions: 3.1.1
>            Reporter: Vaibhav Gumashta
>            Assignee: Marta Kuczora
>            Priority: Major
>         Attachments: HIVE-21164.1.patch, HIVE-21164.10.patch, HIVE-21164.11.patch, HIVE-21164.11.patch, HIVE-21164.12.patch, HIVE-21164.2.patch, HIVE-21164.3.patch, HIVE-21164.4.patch, HIVE-21164.5.patch, HIVE-21164.6.patch, HIVE-21164.7.patch, HIVE-21164.8.patch, HIVE-21164.9.patch
>
>
> Currently, we write compacted data to a temporary location and then move the files to a final location, which is an expensive operation on some cloud file systems. Since HIVE-20823 is already in, it can control the visibility of compacted data for the readers. Therefore, we can perhaps avoid writing data to a temporary location and directly write compacted data to the intended final path.



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