You are viewing a plain text version of this content. The canonical link for it is here.
Posted to issues@hive.apache.org by "ASF GitHub Bot (Jira)" <ji...@apache.org> on 2021/03/09 13:58:00 UTC
[jira] [Updated] (HIVE-23391) Change requested lock for ALTER TABLE
ADD COLUMN to DDL_SHARED
[ https://issues.apache.org/jira/browse/HIVE-23391?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
ASF GitHub Bot updated HIVE-23391:
----------------------------------
Labels: pull-request-available (was: )
> 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: 10m
> 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)