[HBASE-12376] HBaseAdmin leaks ZK connections if failure starting watchers (ConnectionLossException)

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 0.98.7, 0.94.24
• Fix Version/s: 0.98.8, 0.94.25
• Component/s: Zookeeper
• Hadoop Flags: Reviewed
• Assignee: Michael Stack
• Reporter: Michael Stack
• Created: 29/Oct/14 19:36
• Updated: 29/Nov/14 22:31
• Resolved: 29/Oct/14 21:58

Description

This is a 0.98 issue that some users have been running into mostly running Canary and for whatever reason, setup of zk connection fails, usually with a ConnectionLossException. End result is ugly leak zk connections. ZKWatcher created instances are just left hang out.