zookeeper集群部署

下载zookeeper安装包

http://archive.apache.org/dist/zookeeper/

解压并设置环境变量

# 解压
tar -zxvf zookeeper-3.4.12.tar
# 重命名
mv zookeeper-3.4.12 zookeeper
# 修改环境变量
vim /etc/profile
#set zookeeper environment
export ZK_HOME=/opt/zookeeper
export PATH=$ZK_HOME/bin:$PATH
# 重启环境变量
source /etc/profile

设置主机名和配置hosts

• 修改/etc/hosts文件
• 修改/etc/hostname 修改机器名

  修改配置文件

  # 拷贝zoo_sample.cfg 并重命名为zoo.cfg
  cd opt/zookeeper/conf
  cp zoo_sample.cfg /opt/zookeeper/conf/zoo.cfg
  # 修改配置文件
  #修改数据文件夹路径
  dataDir=/opt/zookeeper/data
  #在文件末尾添加
  server.1=master:2888:3888
  server.2=slave1:2888:3888
  server.3=slave2:2888:3888

  创建数据文件夹

  ```bash cd /opt/zookeeper mkdir data

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#### 创建myid文件
```bash
# 192.168.111.128
echo 1 >> /opt/zookeeper/data/myid
# 192.168.111.129
echo 2 >> /opt/zookeeper/data/myid
# 192.168.111.130
echo 3 >> /opt/zookeeper/data/myid

启动zookeeper

# 每个机子单独启动zookeeper
1、scp 拷贝 zookeeper到3台服务器。
    scp -r /opt/zookeeper/ root@slave1:/opt
2、修改myid。
3、scp 拷贝/etc/profile 到3太服务器。
4、source /etc/profile
5、三台服务器./zkServer.sh start启动  ./zkServer.sh status
#192.168.111.128
ZooKeeper JMX enabled by default
Using config: /opt/zookeeper/bin/../conf/zoo.cfg
Mode: follower
#192.168.111.129
ZooKeeper JMX enabled by default
Using config: /opt/zookeeper/bin/../conf/zoo.cfg
Mode: follower
#192.168.111.130
ZooKeeper JMX enabled by default
Using config: /opt/zookeeper/bin/../conf/zoo.cfg
Mode: leader