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https://issues.apache.org/jira/browse/HIVE-25189?focusedWorklogId=608272&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-608272
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ASF GitHub Bot logged work on HIVE-25189:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 08/Jun/21 05:37
Start Date: 08/Jun/21 05:37
Worklog Time Spent: 10m
Work Description: pvary commented on pull request #2342:
URL: https://github.com/apache/hive/pull/2342#issuecomment-856458040
@deniskuzZ: if I understand correctly, then here we have collected every
table used by the query in the first phase of the compilation. If my
understanding is correct, then we have a good place to request the locks for
the tables and prevent / reduce race conditions during the compilation.
@scarlin-cloudera, @deniskuzZ what do you think?
Thanks, Peter
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Issue Time Tracking
-------------------
Worklog Id: (was: 608272)
Time Spent: 1h (was: 50m)
> Cache the validWriteIdList in query cache before fetching tables from HMS
> -------------------------------------------------------------------------
>
> Key: HIVE-25189
> URL: https://issues.apache.org/jira/browse/HIVE-25189
> Project: Hive
> Issue Type: Improvement
> Components: HiveServer2
> Reporter: Steve Carlin
> Assignee: Steve Carlin
> Priority: Minor
> Labels: pull-request-available
> Time Spent: 1h
> Remaining Estimate: 0h
>
> For a small performance boost at compile time, we should fetch the
> validWriteIdList before fetching the tables. HMS allows these to be batched
> together in one call. This will avoid the getTable API from being called
> twice, because the first time we call it, we pass in a null for
> validWriteIdList.
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