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Posted to issues@hive.apache.org by "Ramesh Kumar Thangarajan (Jira)" <ji...@apache.org> on 2020/05/15 01:11:00 UTC
[jira] [Assigned] (HIVE-23281)
ObjectStore::convertToStorageDescriptor can be optimised to reduce calls to
DB for ACID tables
[ https://issues.apache.org/jira/browse/HIVE-23281?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Ramesh Kumar Thangarajan reassigned HIVE-23281:
-----------------------------------------------
Assignee: Ramesh Kumar Thangarajan
> ObjectStore::convertToStorageDescriptor can be optimised to reduce calls to DB for ACID tables
> ----------------------------------------------------------------------------------------------
>
> Key: HIVE-23281
> URL: https://issues.apache.org/jira/browse/HIVE-23281
> Project: Hive
> Issue Type: Improvement
> Reporter: Rajesh Balamohan
> Assignee: Ramesh Kumar Thangarajan
> Priority: Major
> Attachments: HIVE-23281.1.patch, image-2020-04-23-13-56-17-210.png
>
>
> [https://github.com/apache/hive/blob/master/standalone-metastore/metastore-server/src/main/java/org/apache/hadoop/hive/metastore/ObjectStore.java#L1980]
>
> [https://github.com/apache/hive/blob/master/standalone-metastore/metastore-server/src/main/java/org/apache/hadoop/hive/metastore/ObjectStore.java#L1982]
>
> SkewInfo, bucketCols, ordering etc are not needed for ACID tables. It may be good to check for transactional tables and get rid these calls in table lookups.
>
> This should help in reducing DB calls.
> !image-2020-04-23-13-56-17-210.png|width=669,height=485!
>
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