[HIVE-18303] ZooKeeperHiveLockManager throws Failed to release ZooKeeper lock Exception

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 2.1.1, 2.2.0
• Component/s: Locking

Environment

jdk 1.7

• Assignee: Unassigned
• Reporter: snodawn
• Created: 19/Dec/17 09:43
• Updated: 25/Dec/17 09:23

Description

i found exception :

ZooKeeperHiveLockManager: Failed to release ZooKeeper lock:
java.lang.IllegalStateException: instance must be started before calling this method

because in ShutdownHookManager, priority of CuratorFrameworkSingleton.closeAndReleaseInstance is 10, but in Driver.releaseLocksAndCommitOrRollback, it's 0. So locks are released after CuratorFramework is closed, which may case such exception.