ZOOKEEPER-4275 Slowness in sasl login or subject.doAs() causes zk client to falsely assume that the server did not respond, closes connection and goes to unnecessary retries

zookeeper-server/src/main/java/org/apache/zookeeper/ClientCnxn.java

@@ -1137,6 +1137,8 @@ public void run() {
                             serverAddress = hostProvider.next(1000);
                         }
                         startConnect(serverAddress);
+                        // Update now to start the connection timer right after we make a connection attempt
+                        clientCnxnSocket.updateNow();
                         clientCnxnSocket.updateLastSendAndHeard();
                     }