4、安装zookeeper群集

1）、安装zookeeper程序包

[root@localhost ~]# mkdir /usr/local/zookeeper01

[root@localhost ~]# mkdir /usr/local/zookeeper02

[root@localhost ~]# mkdir /usr/local/zookeeper03

[root@localhost ~]# wget http://apache.fayea.com/zookeeper/zookeeper-3.4.6/zookeeper-3.4.6.tar.gz

[root@localhost ~]# tar -zxvf zookeeper-3.4.6.tar.gz

[root@localhost ~]# cp zookeeper-3.4.6/* /usr/local/zookeeper01/

[root@localhost ~]# cp zookeeper-3.4.6/* /usr/local/zookeeper02/

[root@localhost ~]# cp zookeeper-3.4.6/* /usr/local/zookeeper03/

2)、修改配置文件

[root@localhost ~]# mkdir /usr/local/zookeeper01/data/

[root@localhost ~]# mkdir /usr/local/zookeeper02/data/

[root@localhost ~]# mkdir /usr/local/zookeeper03/data/

[root@localhost ~]# mkdir /usr/local/zookeeper01/logs/

[root@localhost ~]# mkdir /usr/local/zookeeper02/logs/

[root@localhost ~]# mkdir /usr/local/zookeeper03/logs/

[root@localhost ~]# touch /usr/local/zookeeper01/data/myid

[root@localhost ~]# touch /usr/local/zookeeper02/data/myid

[root@localhost ~]# touch /usr/local/zookeeper03/data/myid

[root@localhost ~]# echo 1 > /usr/local/zookeeper01/data/myid

[root@localhost ~]# echo 2 > /usr/local/zookeeper01/data/myid 

[root@localhost ~]# echo 3 > /usr/local/zookeeper01/data/myid 

[root@localhost ~]# mv /usr/local/zookeeper01/conf/zoo_sample.cfg /usr/local/zookeeper01/conf/zoo.cfg

[root@localhost ~]# mv /usr/local/zookeeper02/conf/zoo_sample.cfg /usr/local/zookeeper02/conf/zoo.cfg

[root@localhost ~]# mv /usr/local/zookeeper03/conf/zoo_sample.cfg /usr/local/zookeeper03/conf/zoo.c

fg

[root@localhost ~]# vi /usr/local/zookeeper01/conf/zoo.cfg

修改并追加以下内容：

clientPort=2181

#zookeeper02节点的这个位置为2182，zookeeper03节点的这个位置为2183

dataDir=/usr/local/zookeeper01/data    

# zookeeper02和zookeeper03节点要修改成响应的目录。

dataLogDir=/usr/local/zookeeper01/logs 

# zookeeper02和zookeeper03节点要修改成响应的目录。

server.1=127.0.0.1:2888:3888

server.2=127.0.0.1:2889:3889

server.3=127.0.0.1:2890:3890

按照上面的修改继续修改zookeeper02和zookeeper03的配置项。

3）、依次启动zookeeper节点服务

[root@localhost ~]# /usr/local/zookeeper01/bin/zkServer.sh start

JMX enabled by default

Using config: /usr/local/zookeeper01/bin/../conf/zoo.cfg

Starting zookeeper ... STARTED

[root@localhost ~]# /usr/local/zookeeper02/bin/zkServer.sh start

JMX enabled by default

Using config: /usr/local/zookeeper02/bin/../conf/zoo.cfg

Starting zookeeper ... STARTED

[root@localhost ~]# /usr/local/zookeeper03/bin/zkServer.sh start

JMX enabled by default

Using config: /usr/local/zookeeper03/bin/../conf/zoo.cfg

Starting zookeeper ... STARTED

4)、查看状态

[root@localhost ~]# /usr/local/zookeeper02/bin/zkServer.sh status

JMX enabled by default

Using config: /usr/local/zookeeper02/bin/../conf/zoo.cfg

Mode: leader

[root@localhost ~]# /usr/local/zookeeper01/bin/zkServer.sh status

JMX enabled by default

Using config: /usr/local/zookeeper01/bin/../conf/zoo.cfg

Mode: follower

[root@localhost ~]# /usr/local/zookeeper03/bin/zkServer.sh status

JMX enabled by default

Using config: /usr/local/zookeeper03/bin/../conf/zoo.cfg

Mode: follower

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