Rajesh Balamohan created HIVE-23446:
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Summary: LLAP: Reduce IPC connection misses to AM for short queries
Key: HIVE-23446
URL: https://issues.apache.org/jira/browse/HIVE-23446
Project: Hive
Issue Type: Improvement
Reporter: Rajesh Balamohan
[https://github.com/apache/hive/blob/master/llap-server/src/java/org/apache/hadoop/hive/llap/daemon/impl/QueryInfo.java#L343]
Umbilical UGI pool for is maintained at QueryInfo level. When there are lots of
short queries, this ends up missing IPC cache and ends up recreating
threads/connections to the same AM.
It would be good to maintain this pool in {{ContainerRunnerImpl}} instead and
recycle as needed.
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