[ZOOKEEPER-1060] QuorumPeer takes a long time to shutdown

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 3.4.0
• Fix Version/s: 3.4.0
• Component/s: quorum
• Assignee: Vishal Kher
• Reporter: Vishal Kher
• Created: 10/May/11 19:32
• Updated: 23/Nov/11 19:22
• Resolved: 14/Jun/11 12:14

Description

This problem is seen only if you have ZooKeeper embedded in your application. QuorumPeerMain.initializeAndRun() does a quorumPeer.join() before exiting.

QuorumPeer.shutdown() tries to cleanup everything, but it does not interrupt itself. As a result, a if the peer is running FLE, it might be waiting to receive notifications (recvqueue.poll()) in FastLeaderElection. Therefore, quorumPeer.join() will wait until the peer wakes up from poll().

The fix is simple - call this.interrupt() in QuorumPeer.shutdown().

Issue Links

• is duplicated by: ZOOKEEPER-1069 Calling shutdown() on a QuorumPeer too quickly can lead to a corrupt log