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https://issues.apache.org/jira/browse/HIVE-18705?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16546198#comment-16546198
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Adam Szita commented on HIVE-18705:
-----------------------------------
Got green test, and +1 from Peter, pushed to master now.
Thanks [~pvary] for reviewing.
> Improve HiveMetaStoreClient.dropDatabase
> ----------------------------------------
>
> Key: HIVE-18705
> URL: https://issues.apache.org/jira/browse/HIVE-18705
> Project: Hive
> Issue Type: Improvement
> Reporter: Adam Szita
> Assignee: Adam Szita
> Priority: Major
> Attachments: HIVE-18705.0.patch, HIVE-18705.1.patch,
> HIVE-18705.10.patch, HIVE-18705.11.patch, HIVE-18705.2.patch,
> HIVE-18705.4.patch, HIVE-18705.5.patch, HIVE-18705.6.patch,
> HIVE-18705.7.patch, HIVE-18705.8.patch, HIVE-18705.9.patch
>
>
> {{HiveMetaStoreClient.dropDatabase}} has a strange implementation to ensure
> dealing with client side hooks (for non-native tables e.g. HBase). Currently
> it starts by retrieving all the tables from HMS, and then sends {{dropTable}}
> calls to HMS table-by-table. At the end a {{dropDatabase}} just to be sure :)
> I believe this could be refactored so that it speeds up the dropDB in
> situations where the average table count per DB is very high.
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