[ZOOKEEPER-2238] Support limiting the maximum number of connections/clients to a zookeeper server.

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 3.6.0
• Labels: pull-request-available
• Assignee: Sujith Simon
• Reporter: nijel
• Created: 04/Aug/15 05:08
• Updated: 14/Nov/19 04:54
• Resolved: 14/Nov/19 02:55

Description

Currently zookeeper have the feature of limiting the maximum number of connection/client per IP or Host (maxClientCnxns).

But to safe guard zookeeper server from DoS attack due to many clients from different IPs, it is better to have a limit of total number of connections/clients to a a single member of the ZooKeeper ensemble as well.

So the idea is to introduce a new configuration to limit the maximum number of total connections/clients.

Please share your thoughts.

Issue Links

• is blocked by: ZOOKEEPER-2280 NettyServerCnxnFactory doesn't honor maxClientCnxns param
• links to: GitHub Pull Request #45
• links to: GitHub Pull Request #1108