Zookeeper 重连机制

Zookeeper 重连机制

public class ZKConnectSessionWatcher implements Watcher {

    public final static String zkServerPath = "10.10.10.10:2181";

    public final  static  int timeout = 5000;

    public static void main(String[] args) throws  Exception {
        ZooKeeper zk = new ZooKeeper(zkServerPath, timeout, new ZKConnectSessionWatcher());
        long sessionId = zk.getSessionId();
        byte[] sessionPassword = zk.getSessionPasswd();

        log("客户端开始连接Zookeeper服务器...");
        log("连接状态：" + zk.getState());

        new Thread().sleep(1000);
        log("连接状态：" + zk.getState());

        log("开始会话重连。。。");

        ZooKeeper zkSession = new ZooKeeper(zkServerPath, timeout, new ZKConnectSessionWatcher(), sessionId, sessionPassword);
        log("重新连接zkSession：" + zkSession.getState());
        new Thread().sleep(1000);
        log("重新连接zkSession：" + zkSession.getState());
    }

    public void process(WatchedEvent event) {
        System.out.println("接收到watch通知：" + event.toString());
    }

    private static void log(String msg){
        System.out.println(msg);
    }