Zookeeper:Unable to read additional data from client sessionid 0x00, likely client has closed socket

異常信息：

2018-03-20 23:34:01,887 [myid:99] - INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxnFactory@197] - Accepted socket connection from /10.121.82.229:33749
2018-03-20 23:34:01,887 [myid:99] - WARN  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:ZooKeeperServer@793] - Connection request from old client /10.121.82.229:33749; will be dropped if server is in r-o mode
2018-03-20 23:34:01,887 [myid:99] - INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:ZooKeeperServer@839] - Client attempting to establish new session at /10.121.82.229:33749
2018-03-20 23:34:01,890 [myid:99] - INFO  [CommitProcessor:99:ZooKeeperServer@595] - Established session 0x6362257b44e5068d with negotiated timeout 10000 for client /10.121.82.229:33749
2018-03-20 23:34:21,859 [myid:99] - WARN  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxn@349] - caught end of stream exception
EndOfStreamException: Unable to read additional data from client sessionid 0x6362257b44e5068d, likely client has closed socket
        at org.apache.zookeeper.server.NIOServerCnxn.doIO(NIOServerCnxn.java:220)
        at org.apache.zookeeper.server.NIOServerCnxnFactory.run(NIOServerCnxnFactory.java:208)
        at java.lang.Thread.run(Thread.java:745)
2018-03-20 23:34:21,860 [myid:99] - INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxn@1001] - Closed socket connection for client /10.121.82.229:33749 which had sessionid 0x6362257b44e5068d

核心報錯信息：

EndOfStreamException: Unable to read additional data from client sessionid 0x6362257b44e5068d, likely client has closed socket

具體問題所在：

客戶端連接Zookeeper時，配置的超時時長過短。致使Zookeeper還沒有讀完Consumer的數據，連接就被Consumer斷開了。

解決方案：

初始化Zookeeper連接時，將接收超時參數值調整大一些即可（tickTime2000改為10000），默認是毫秒（ms）