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Posted to issues@hive.apache.org by "Rajesh Balamohan (Jira)" <ji...@apache.org> on 2021/05/29 04:06:00 UTC

[jira] [Updated] (HIVE-25178) Reduce number of getPartition calls during loadDynamicPartitions

     [ https://issues.apache.org/jira/browse/HIVE-25178?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Rajesh Balamohan updated HIVE-25178:
------------------------------------
    Labels: performance  (was: )

> Reduce number of getPartition calls during loadDynamicPartitions
> ----------------------------------------------------------------
>
>                 Key: HIVE-25178
>                 URL: https://issues.apache.org/jira/browse/HIVE-25178
>             Project: Hive
>          Issue Type: Improvement
>          Components: Hive
>            Reporter: Rajesh Balamohan
>            Priority: Major
>              Labels: performance
>
> When dynamic partitions are loaded, Hive::loadDynamicPartition loads all partitions from HMS causing heavy load on it. This becomes worse when large number of partitions are present in tables.
> Only relevant partitions being loaded in dynamic partitions can be queried from HMS for partition existence.
> [https://github.com/apache/hive/blob/master/ql/src/java/org/apache/hadoop/hive/ql/metadata/Hive.java#L2958]



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