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Zookeeper_Disconnect_State
Commit 8a7155b3 authored by Ali Saeed's avatar Ali Saeed
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Zookeeper disconnect state

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<modelVersion>4.0.0</modelVersion>
<groupId>org.example</groupId>
<artifactId>zookeeper-leader-election</artifactId>
<version>1.0-SNAPSHOT</version>
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src/main/java/org/example/LeaderElection.java 0 → 100644
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package org.example;
import org.apache.zookeeper.WatchedEvent;
import org.apache.zookeeper.Watcher;
import org.apache.zookeeper.ZooKeeper;
import java.io.IOException;
public class LeaderElection implements Watcher {
private static final String address = "192.168.181.136:2181";
private static final int SESSION_TIMEOUT = 3000; //dead client
private ZooKeeper zooKeeper;
public static void main(String[] args) {
LeaderElection leaderElection = new LeaderElection();
leaderElection.connectToZookeeper();
leaderElection.run();
}
public void connectToZookeeper() {
try {
this.zooKeeper = new ZooKeeper(address, SESSION_TIMEOUT, this);
} catch (IOException e) {
System.out.println(e.getMessage());
}
}
public void run() {
synchronized (zooKeeper) {
try {
zooKeeper.wait();// wait for event
} catch (InterruptedException e) {
System.out.println(e.getMessage());
}
}
try {
zooKeeper.close();
} catch (InterruptedException e) {
throw new RuntimeException(e);
}
}
@Override
public void process(WatchedEvent watchedEvent) {
switch (watchedEvent.getType()) {
case None:
if (watchedEvent.getState() == Event.KeeperState.SyncConnected) {
System.out.println("Successfully connected to ZooKeeper");
} else if (watchedEvent.getState() == Event.KeeperState.Disconnected) {
System.out.println("Disconnected from ZooKeeper. Shutting down the program.");
synchronized (zooKeeper) {
zooKeeper.notifyAll();
}
}
break;
}
}}
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