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https://issues.apache.org/jira/browse/HIVE-25178?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Narayanan Venkateswaran updated HIVE-25178:
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Attachment: 0001-HIVE-25178-Reduce-number-of-getPartition-calls-durin.patch
> Reduce number of getPartition calls during loadDynamicPartitions for External
> Tables
> ------------------------------------------------------------------------------------
>
> Key: HIVE-25178
> URL: https://issues.apache.org/jira/browse/HIVE-25178
> Project: Hive
> Issue Type: Improvement
> Components: Hive
> Reporter: Rajesh Balamohan
> Assignee: Narayanan Venkateswaran
> Priority: Major
> Labels: performance, pull-request-available
> Attachments:
> 0001-HIVE-25178-Reduce-number-of-getPartition-calls-durin.patch
>
> Time Spent: 20m
> Remaining Estimate: 0h
>
> 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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