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Posted to issues@hive.apache.org by "Marta Kuczora (Jira)" <ji...@apache.org> on 2019/11/25 17:06:00 UTC
[jira] [Updated] (HIVE-21164) ACID: explore how we can avoid a move
step during inserts/compaction
[ https://issues.apache.org/jira/browse/HIVE-21164?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Marta Kuczora updated HIVE-21164:
---------------------------------
Attachment: HIVE-21164.12.patch
> 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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