[
https://issues.apache.org/jira/browse/HIVE-23391?focusedWorklogId=611046&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-611046
]
ASF GitHub Bot logged work on HIVE-23391:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 15/Jun/21 00:09
Start Date: 15/Jun/21 00:09
Worklog Time Spent: 10m
Work Description: github-actions[bot] closed pull request #2054:
URL: https://github.com/apache/hive/pull/2054
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
For queries about this service, please contact Infrastructure at:
[email protected]
Issue Time Tracking
-------------------
Worklog Id: (was: 611046)
Time Spent: 40m (was: 0.5h)
> Change requested lock for ALTER TABLE ADD COLUMN to DDL_SHARED
> --------------------------------------------------------------
>
> Key: HIVE-23391
> URL: https://issues.apache.org/jira/browse/HIVE-23391
> Project: Hive
> Issue Type: Improvement
> Reporter: Zoltan Chovan
> Assignee: Zoltan Chovan
> Priority: Major
> Labels: pull-request-available
> Fix For: 4.0.0
>
> Attachments: HIVE-23391.2.patch, HIVE-23391.3.patch,
> HIVE-23391.4.patch, HIVE-23391.patch
>
> Time Spent: 40m
> Remaining Estimate: 0h
>
> A long running query can block a simple add column query, as the add column
> will require a DDL_EXCLUSIVE lock currently. By changing this to a shared
> lock, this metadata only query can be executed without having to wait for the
> previous query to finish.
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
