BELUGA BEHR created HIVE-17165:
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Summary: Implement Gap Locking
Key: HIVE-17165
URL: https://issues.apache.org/jira/browse/HIVE-17165
Project: Hive
Issue Type: Improvement
Components: HiveServer2
Affects Versions: 2.1.1, 1.2.2, 3.0.0
Reporter: BELUGA BEHR
Priority: Minor
MySQL implements a feature called "gap locks." This is a single object that
locks a range of rows within an index. This would be helpful for HiveServer2
ZooKeeper locks on partitions. The current behavior is that a unique lock is
created for each and every partition. This can place a lot of load on the
ZooKeeper instances, and many partitions also means many round-trip operations
to create each ZNode individually.
https://dev.mysql.com/doc/refman/5.7/en/innodb-locking.html
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