Session Drops in r-o mode.

[shubham agarwal]

Hi,

I am trying to connect to zookeeper via opentsdb client, but whenever I try to connect I get the following warning comes in the log, and the connection session is closed.

2015-12-02 14:39:20,299 [myid:] - WARN [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:ZooKeeperServer@793] - Connection request from old client /10.207.68.111:58788; will be dropped if server is in r-o mode
2015-12-02 14:39:20,299 [myid:] - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:ZooKeeperServer@839] - Client attempting to establish new session at /10.207.68.111:58788
2015-12-02 14:39:20,302 [myid:] - INFO [SyncThread:0:ZooKeeperServer@595] - Established session 0x1515bd9bfaa0060 with negotiated timeout 5000 for client /10.207.68.111:58788
2015-12-02 14:39:20,384 [myid:] - INFO [ProcessThread(sid:0 cport:-1)::PrepRequestProcessor@494] - Processed session termination for sessionid: 0x1515bd9bfaa0060
2015-12-02 14:39:20,388 [myid:] - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxn@1001] - Closed socket connection for client /10.207.68.111:58788 which had sessionid 0x1515bd9bfaa0060

So a couple of questions, 

1. What does this "old client" mean?

2. How this issue can be fixed?

Thanks,