[
https://issues.apache.org/jira/browse/HIVE-23721?focusedWorklogId=454250&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-454250
]
ASF GitHub Bot logged work on HIVE-23721:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 03/Jul/20 02:51
Start Date: 03/Jul/20 02:51
Worklog Time Spent: 10m
Work Description: butaozhang commented on pull request #1202:
URL: https://github.com/apache/hive/pull/1202#issuecomment-653309334
Failed tests seem not be relate to this pr , and I can run successfully in
my local env.
----------------------------------------------------------------
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: 454250)
Time Spent: 20m (was: 10m)
> MetaStoreDirectSql.ensureDbInit() need to optimize QuerySQL
> -----------------------------------------------------------
>
> Key: HIVE-23721
> URL: https://issues.apache.org/jira/browse/HIVE-23721
> Project: Hive
> Issue Type: Bug
> Affects Versions: 4.0.0, 3.1.2
> Environment: Hadoop 3.1（1700+ nodes）
> YARN 3.1 （with timelineserver enabled，https enabled)
> Hive 3.1 (15 HS2 instance)
> 60000+ YARN Applications every day
> Reporter: YulongZ
> Assignee: zhangbutao
> Priority: Critical
> Labels: pull-request-available
> Fix For: 4.0.0
>
> Attachments: HIVE-23721.01.patch
>
> Time Spent: 20m
> Remaining Estimate: 0h
>
> From Hive3.0，catalog added to hivemeta，many schema of metastore added column
> “catName”，and index for table added column “catName”。
> In MetaStoreDirectSql.ensureDbInit() ，two queries below
> “
> initQueries.add(pm.newQuery(MTableColumnStatistics.class, "dbName ==
> ''"));
> initQueries.add(pm.newQuery(MPartitionColumnStatistics.class, "dbName
> == ''"));
> ”
> should use "catName == ''" instead of "dbName == ''"，because “catName” is the
> first index column。
> When data of metastore become large，for example， table of
> MPartitionColumnStatistics have millions of lines。The
> “newQuery(MPartitionColumnStatistics.class, "dbName == ''")” for metastore
> executed very slowly，and the query “show tables“ for hiveserver2 executed
> very slowly too。
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
