Naveen Gangam created HIVE-12250:
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Summary: Zookeeper connection leaks in Hive's HBaseHandler.
Key: HIVE-12250
URL: https://issues.apache.org/jira/browse/HIVE-12250
Project: Hive
Issue Type: Bug
Components: HiveServer2
Affects Versions: 1.1.0
Reporter: Naveen Gangam
Assignee: Naveen Gangam
HiveServer2 performance regresses severely due to what appears to be a leak in
the ZooKeeper connections. lsof output on the HS2 process shows about 8000 TCP
connections to the ZK ensemble nodes.
grep TCP lsof-hive-node11 | grep node11 | grep -E "node03|node04|node05" | wc -l
7866
grep TCP lsof-hive-node11 | grep node11 | grep -E "node03" | wc -l
2615
grep TCP lsof-hive-node11 | grep node11 | grep -E "node04" | wc -l
2622
grep TCP lsof-hive-node11 | grep node11 | grep -E "node05" | wc -l
2629
node11 - HMS node
node03, node04 and node05 are the hosts for zookeeper ensemble.
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