Zookeeper集群安装与配置

1、解压apache-zookeeper-3.8.0-bin.tar.gz解压到/opt/目录下

tar -zxvf /root/experiment/tools/apache-zookeeper-3.8.0-bin.tar.gz -C /opt

2、修改apache-zookeeper-3.8.0-bin的名称为zookeeper

mv /opt/apache-zookeeper-3.8.0-bin /opt/zookeeper

3、复制Zookeeper配置文件zoo_sample.cfg名为zoo.cfg

cp /opt/zookeeper/conf/zoo_sample.cfg /opt/zookeeper/conf/zoo.cfg

4、编辑zoo.cfg

vi /opt/zookeeper/conf/zoo.cfg

配置如下参数：

dataDir=/opt/zookeeper/zkdata
dataLogDir=/opt/zookeeper/zkdatalog
server.1=node01:2888:3888
server.2=node02:2888:3888
server.3=node03:2888:3888

5、创建Zookeeper数据文件夹zkdata和日志文件夹zkdatalog

mkdir -p /opt/zookeeper/zkdata

mkdir -p /opt/zookeeper/zkdatalog

6、修改文件夹zkdata和zkdatalog读写权限

chmod 700 /opt/zookeeper/zkdata
chmod 700 /opt/zookeeper/zkdatalog

7、配置并刷新环境变量

export ZK_HOME=/opt/zookeeper
export PATH=$ZK_HOME/bin:$PATH

刷新环境变量

souce /etc/profile

8、拷贝node01主机/etc/profile文件到node02、node03主机。

scp /etc/profile node01:/etc
scp /etc/profile node02:/etc

9、拷贝node01主机/opt/zookeeper文件到node02、node03主机。

scp  -r /opt/zookeeper node01:/opt
scp  -r /opt/zookeeper node02:/opt

10、当前主节点node01机上，将字符串“1”写入文件myid。

echo "1" > /opt/zookeeper/zkdata/myid
cat /opt/zookeeper/zkdata/myid

11、当前主节点node02机上，将字符串“2”写入文件myid

echo "2" > /opt/zookeeper/zkdata/myid
cat /opt/zookeeper/zkdata/myid

12、当前主节点node03机上，将字符串“3”写入文件myid

echo "3" > /opt/zookeeper/zkdata/myid
cat /opt/zookeeper/zkdata/myid

13、Zookeeper的启动，三台主机分别执行启动

zkServer.sh start

14、查看Zookeeper的状态，三台主机分别执行查看指令

zkServer.sh status

15、停止Zookeeper进程，三台主机分别执行停止指令

zkServer.sh stop