[ZOOKEEPER-2358] NettyServerCnxn leaks watches upon close

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Duplicate
• Affects Version/s: 3.4.7, 3.5.1
• Assignee: Ian Dimayuga
• Reporter: Ian Dimayuga
• Created: 28/Jan/16 02:35
• Updated: 29/Sep/24 12:34
• Resolved: 29/Sep/24 12:34

Description

NettyServerCnxn.close() neglects to call zkServer.removeCnxn the way NIOServerCnxn.close() does. Also, WatchLeakTest does not test watch leaks in Netty.

Issue Links

• duplicates: ZOOKEEPER-2509 Secure mode leaks memory
• duplicates: ZOOKEEPER-2527 Connection watch is not getting cleared when watch is created as part of get and it is fired as part of set and client is closed
• duplicates: ZOOKEEPER-2530 When zookeeper started in SSL mode, set a "get" watcher on a znode from zkCli client, restart the zkCli, the "Data" watcher still present. Trying removing that watcher fails saying no watcher available
• is superceded by: ZOOKEEPER-3131 org.apache.zookeeper.server.WatchManager resource leak