环境版本

  • 操作系统:CentOS release 6.6 (Final)
  • java版本: jdk1.8
  • zookeeper版本: zookeeper-3.4.11

一、 安装jdk

  1. 此处省略

二、 安装zookeeper

2.1 下载源码包,并解压

官网下载地址:http://www.apache.org/dyn/closer.cgi/zookeeper

  1. wget http://mirror.olnevhost.net/pub/apache/zookeeper/zookeeper-3.4.11/zookeeper-3.4.11.tar.gz
  2. tar zxvf zookeeper-3.4.11.tar.gz
  3. mv zookeeper-3.4.11 /usr/local/zookeeper

2.2 修改环境变量

编辑 /etc/profile 文件, 在文件末尾添加以下环境变量配置:

  1. # ZooKeeper Env
  2. export ZOOKEEPER_HOME=/usr/local/zookeeper
  3. export PATH=$PATH:$ZOOKEEPER_HOME/bin

运行以下命令使环境变量生效: source /etc/profile

2.3 重命名配置文件

初次使用 ZooKeeper 时,需要将$ZOOKEEPER_HOME/conf 目录下的 zoo_sample.cfg 重命名为 zoo.cfg, zoo.cfg

  1. mv $ZOOKEEPER_HOME/conf/zoo_sample.cfg $ZOOKEEPER_HOME/conf/zoo.cfg

2.4 单机模式—修改配置文件

创建目录/usr/local/zookeeper/data/usr/local/zookeeper/logs 修改配置文件

  1. tickTime=2000
  2. initLimit=10
  3. syncLimit=5
  4. dataDir=/usr/local/zookeeper/data
  5. dataLogDir=/usr/local/zookeeper/logs
  6. clientPort=2181

如果是多节点,配置文件中尾部增加

  1. server.1=192.168.1.110:2888:3888
  2. server.2=192.168.1.111:2888:3888
  3. server.3=192.168.1.112:2888:3888

同时,增加

  1. #master
  2. echo "1">/usr/local/zookeeper/data/myid
  3. #slave1
  4. echo "2">/usr/local/zookeeper/data/myid
  5. #slave2
  6. echo "3">/usr/local/zookeeper/data/myid

2.5 启动 ZooKeeper 服务

  1. # cd /usr/local/zookeeper/zookeeper-3.4.11/bin
  2. # ./zkServer.sh start
  3. ZooKeeper JMX enabled by default
  4. Using config: /usr/local/zookeeper/zookeeper-3.4.11/bin/../conf/zoo.cfg
  5. Starting zookeeper ... STARTED
  6. zkServer.sh status
  7. ZooKeeper JMX enabled by default
  8. Using config: /usr/local/zookeeper/bin/../conf/zoo.cfg
  9. Mode: follower

2.6 验证zooKeeper服务

服务启动完成后,可以使用 telnet 和 stat 命令验证服务器启动是否正常:

  1. # telnet 127.0.0.1 2181
  2. Trying 127.0.0.1...
  3. Connected to 127.0.0.1.
  4. Escape character is '^]'.
  5. stat
  6. Zookeeper version: 3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0, built on 11/01/2017 18:06 GMT
  7. Clients:
  8. /127.0.0.1:48430[0]($queued=0,recved=1,sent=0)
  9. Latency min/avg/max: 0/0/0
  10. Received: 1
  11. Sent: 0
  12. Connections: 1
  13. Outstanding: 0
  14. Zxid: 0x0
  15. Mode: standalone
  16. Node count: 4
  17. Connection closed by foreign host.

2.7 停止 ZooKeeper 服务

想要停止 ZooKeeper 服务, 可以使用如下命令:

  1. # cd /usr/local/zookeeper/zookeeper-3.4.11/bin
  2. # ./zkServer.sh stop
  3. ZooKeeper JMX enabled by default
  4. Using config: /usr/local/zookeeper/zookeeper-3.4.11/bin/../conf/zoo.cfg
  5. Stopping zookeeper ... STOPPED

三、zk ui安装 (选装,页面查看zk的数据)

拉取代码

  1. #git clone https://github.com/DeemOpen/zkui.git

源码编译需要安装 maven

  1. # wget http://repos.fedorapeople.org/repos/dchen/apache-maven/epel-apache-maven.repo -O /etc/yum.repos.d/epel-apache-maven.repo
  2. #cd zkui/
  3. #yum install -y maven
  4. #mvn clean install

修改配置文件默认值

  1. #vim config.cfg
  2. serverPort=9090 #指定端口
  3. zkServer=192.168.1.110:2181
  4. sessionTimeout=300000

启动程序至后台

2.0-SNAPSHOT 会随软件的更新版本不同而不同,执行时请查看target 目录中真正生成的版本

  1. nohup java -jar target/zkui-2.0-SNAPSHOT-jar-with-dependencies.jar &

用浏览器访问:

http://192.168.1.110:9090/