[ZOOKEEPER-1054] Drop connections from servers not in the cluster configuration

• Type: Improvement
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Component/s: leaderElection
• Labels: security
• Assignee: Bhallamudi Venkata Siva Kamesh
• Reporter: Bhallamudi Venkata Siva Kamesh
• Created: 26/Apr/11 08:29
• Updated: 03/Feb/22 08:50

Description

Let us suppose zookeeper cluster is running in the following machines

server.1=10.18.52.133:2999:3999
server.2=10.18.52.253:2999:3999
server.3=10.18.52.96:2999:3999

Let us take another zookeeper(10.18.52.109),which is not part of the cluster configuration, tries to participate in the leader election,then one of the zookeeper server's log is filled with following INFO messages

2011-04-19 17:42:42,457 - INFO  [/10.18.52.133:3999:QuorumCnxManager$Listener@486] - Received connection request /10.18.52.109:18324