at org.apache.zookeeper.ClientCnxnSocket.readLength(ClientCnxnSocket.java:113) at org.apache.zookeeper.ClientCnxnSocketNIO.doIO(ClientCnxnSocketNIO.java:79) at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:366) at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1144)