[HIVE-25075] Hive::loadPartitionInternal establishes HMS connection for every partition for external tables

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 4.0.0-alpha-1
• Labels: pull-request-available
• Assignee: Rajesh Balamohan
• Reporter: Rajesh Balamohan
• Created: 29/Apr/21 10:02
• Updated: 17/Nov/22 08:48
• Resolved: 18/May/21 00:00

Description

https://github.com/apache/hive/blob/master/ql/src/java/org/apache/hadoop/hive/ql/metadata/Hive.java#L2522

boolean needRecycle = !tbl.isTemporary()
                  && ReplChangeManager.shouldEnableCm(Hive.get().getDatabase(tbl.getDbName()), tbl.getTTable());

Hive.get() breaks the current connection with HMS. Due to this, for external table partition loads, it establishes HMS connection for partition.

Issue Links

• links to: GitHub Pull Request #2234