zookeeper安装一：单机安装

实验环境：

1. centos7.6最小化安装 2. jdk1.8 3. zookeeper-3.4.14

1. 安装jdk环境(略)

2. 下载zookeeper

3. 将下载好的压缩包上传到linux目录 /soft中

4. 解压这个压缩包

[root@localhost soft]# tar -zxvf zookeeper-3.4.14.tar.gz

5. 进入压缩包，拷贝生成新的配置文件

[root@localhost zookeeper-3.4.14]# cp conf/zoo_sample.cfg conf/zoo.cfg

6. 修改配置文件 zoo.cfg配置

将dataDir修改为/soft/zookeeper-3.4.14/dataDir

7. 创建dataDir目录

[root@localhost zookeeper-3.4.14]# mkdir /soft/zookeeper-3.4.14/dataDir

8. 启动Server

[root@localhost zookeeper-3.4.14]# cd /soft/zookeeper-3.4.14/bin [root@localhost bin]# ./zkServer.sh start ZooKeeper JMX enabled by default Using config: /soft/zookeeper-3.4.14/bin/…/conf/zoo.cfg Starting zookeeper … STARTED

9. 启动客户端连接这个Server

[root@localhost bin]# ./zkCli.sh Connecting to localhost:2181 … Welcome to ZooKeeper! … WATCHER:: WatchedEvent state:SyncConnected type:None path:null [zk: localhost:2181(CONNECTED) 0] 看到这里说明成功的连接到了服务端

10. 使用命令行测试zookeeper服务端

10.1 列举出"/"节点下的结构

[zk: localhost:2181(CONNECTED) 0] ls / [zookeeper]

10.2 创建节点"/zkdemo"并绑定数据

[zk: localhost:2181(CONNECTED) 1] create /zkdemo "this is a demo" Created /zkdemo

10.3 再次列举出"/"节点下的结构

[zk: localhost:2181(CONNECTED) 2] ls / [zookeeper, zkdemo]

10.4 获取节点"/zkdemo"下绑定的字符串

[zk: localhost:2181(CONNECTED) 3] get /zkdemo this is a demo cZxid = 0x2 ctime = Tue May 21 23:17:38 CST 2019 mZxid = 0x2 mtime = Tue May 21 23:17:38 CST 2019 pZxid = 0x2 cversion = 0 dataVersion = 0 aclVersion = 0 ephemeralOwner = 0x0 dataLength = 14 numChildren = 0

10.5 修改节点"/zkdemo"下绑定的字符串

[zk: localhost:2181(CONNECTED) 4] set /zkdemo "another" cZxid = 0x2 ctime = Tue May 21 23:17:38 CST 2019 mZxid = 0x3 mtime = Tue May 21 23:21:43 CST 2019 pZxid = 0x2 cversion = 0 dataVersion = 1 aclVersion = 0 ephemeralOwner = 0x0 dataLength = 7 numChildren = 0

10.6 再次获取节点"/zkdemo"下的绑定字符串

[zk: localhost:2181(CONNECTED) 5] get /zkdemo another cZxid = 0x2 ctime = Tue May 21 23:17:38 CST 2019 mZxid = 0x3 mtime = Tue May 21 23:21:43 CST 2019 pZxid = 0x2 cversion = 0 dataVersion = 1 aclVersion = 0 ephemeralOwner = 0x0 dataLength = 7 numChildren = 0

10.7 删除节点"/zkdemo"

[zk: localhost:2181(CONNECTED) 6] delete /zkdemo [zk: localhost:2181(CONNECTED) 7] ls / [zookeeper]

10.8 退出客户端

[zk: localhost:2181(CONNECTED) 8] quit Quitting… 2019-05-21 23:27:21,823 [myid:] - INFO [main:ZooKeeper@693] - Session: 0x1000025f0f80000 closed 2019-05-21 23:27:21,829 [myid:] - INFO [main-EventThread:ClientCnxn$EventThread@522] - EventThread shut down for session: 0x1000025f0f80000

11 关闭Server端

[root@localhost bin]# ./zkServer.sh stop ZooKeeper JMX enabled by default Using config: /soft/zookeeper-3.4.14/bin/…/conf/zoo.cfg Stopping zookeeper … STOPPED 其他：上面启动zkServer是后台执行的方式,如果想前台启动的话使用命令： [root@localhost bin]# ./zkServer.sh start-foreground