[HIVE-16382] Find a way to store the query string only once in ZooKeeper locks

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 3.0.0
• Component/s: Locking
• Assignee: Unassigned
• Reporter: Peter Vary
• Created: 05/Apr/17 16:53
• Updated: 05/Apr/17 16:53

Description

Currently when we store the locks in ZooKeeper, then every lock object contains the query string. HIVE-16334 aims to lessen the memory pressure on ZooKeeper by adding the possibility to store only the truncated version of the query string.

It would be even better to find a solution for storing the string only once, or not at all, but still be able to provide it when they are queried by the SHOW LOCKS EXTENDED.

cc: stakiar