Zookeeper安装配置
Zookeeper安装配置
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
此处省略，自己百度安装
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
wget http://mirror.olnevhost.net/pub/apache/zookeeper/zookeeper-3.4.11/zookeeper-3.4.11.tar.gz
tar zxvf zookeeper-3.4.11.tar.gz
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:
# ZooKeeper Env
export ZOOKEEPER_HOME=/usr/local/zookeeper
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
mv $ZOOKEEPER_HOME/conf/zoo_sample.cfg $ZOOKEEPER_HOME/conf/zoo.cfg
2.4 单机版-修改配置文件
创建目录/usr/local/zookeeper/data 和/usr/local/zookeeper/logs 修改配置文件zoo.cfg
tickTime=2000
initLimit=10
syncLimit=5
dataDir=/usr/local/zookeeper/data
dataLogDir=/usr/local/zookeeper/logs
clientPort=2181
如果是多节点,配置文件中尾部增加
server.1=ip:2888:3888
server.2=ip:2888:3888
server.3=ip:2888:3888
同时,增加
#master
echo "1">/usr/local/zookeeper/data/myid
#slave1
echo "2">/usr/local/zookeeper/data/myid
#slave2
echo "3">/usr/local/zookeeper/data/myid
2.5 启动zookeeper服务
# cd /usr/local/zookeeper/zookeeper-3.4.11/bin
# ./zkServer.sh start
ZooKeeper JMX enabled by default
Using config: /usr/local/zookeeper/zookeeper-3.4.11/bin/../conf/zoo.cfg
Starting zookeeper ... STARTED
zkServer.sh status
ZooKeeper JMX enabled by default
Using config: /usr/local/zookeeper/bin/../conf/zoo.cfg
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:
# telnet 127.0.0.1 2181
Trying 127.0.0.1...
Connected to 127.0.0.1.
Escape character is '^]'.
stat
Zookeeper version: 3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0, built on 11/01/2017 18:06 GMT
Clients:
/127.0.0.1:48430[0](queued=0,recved=1,sent=0)
Latency min/avg/max: 0/0/0
Received: 1
Sent: 0
Connections: 1
Outstanding: 0
Zxid: 0x0
Mode: standalone
Node count: 4
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:
# cd /usr/local/zookeeper/zookeeper-3.4.11/bin
# ./zkServer.sh stop
ZooKeeper JMX enabled by default
Using config: /usr/local/zookeeper/zookeeper-3.4.11/bin/../conf/zoo.cfg
Stopping zookeeper ... STOPPED
三、zk UI安装（可不做，作用是通过页面查看zk的数据）
3.1 拉取代码
#git clone https://github.com/DeemOpen/zkui.git
3.2 源码编译需要安装 maven
# wget http://repos.fedorapeople.org/repos/dchen/apache-maven/epel-apache-maven.repo -O /etc/yum.repos.d/epel-apache-maven.repo
#cd zkui/
#yum install -y maven
#mvn clean install
3.3 修改配置文件默认值
#vim config.cfg
serverPort=9090 #指定端口
zkServer=192.168.1.110:2181
sessionTimeout=300000
3.4 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
nohup java -jar target/zkui-2.0-SNAPSHOT-jar-with-dependencies.jar &
3.5 用浏览器访问：
http://ip:port/