zookeeper

安装

     解压改配置。

启动 

./zkServer.sh start 

./zkServer.sh stop

./bin/zkCli.sh -server 192.168.0.200:2181

 

windows客户端：

下载客户端：   https://issues.apache.org/jira/secure/attachment/12436620/ZooInspector.zip

解压缩后点击ZooInspector\build\zookeeper-dev-ZooInspector.jar

点左上角后输入地址：192.168.0.200:2181,192.168.0.200:2182,192.168.0.200:2183 

shell客户端：

 ./bin/zkCli.sh -server 192.168.0.200:2181      

[zk: 192.168.0.200:2181(CONNECTED) 8] ls /root/demo

[192.168.0.200:8109, 192.168.0.100:8109]

get /root/demo/192.168.0.100:8109 

java 例子代码

//new对象
 zk = new ZooKeeper(hosts, SESSION_TIMEOUT, this);
//创建节点
 //CreateMode.EPHEMERAL临时的    CreateMode.PERSISTENT持久的    Ids.OPEN_ACL_UNSAFE 任何人都有访问控制权限的
 String createdPath = getZK(ZKHost).create(path, value, Ids.OPEN_ACL_UNSAFE, CreateMode.EPHEMERAL);
 String createdPath = getZK(ZKHost).create(path, null/* data */, Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
//设置数据
getZK(ZKHost).setData(path, value, -1);
//获取节点孩子节点[192.168.0.200:8109, 192.168.0.100:8109]
List<String>  children = getZK(ZKHost).getChildren(path, watcher);
//获取节点数据
 byte[] data = getZK(ZKHost).getData(path, watcher, null/* stat */);