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linux搭建zookeeper集群实战教程

上一章章节目录下一章 2021-03-08已有549人阅读 评论(0)

linux搭建zookeeper集群实战教程


解决方法:

安装zookeeper前提是要配置好jdk环境

1.下载zookeeper:http://www.yayihouse.com/yayishuwu/chapter/2912

2.将下载的apache-zookeeper-3.6.2-bin.tar.gz压缩包放在/usr/local/java下,解压:tar -zxvf  /usr/local/java/apache-zookeeper-3.6.2-bin.tar.gz

3.将解压后生成的目录改成apache-zookeeper-3.6.2-bin-1,然后复制里面的zoo_sample.cfg并命名zoo.cfg,zoo.cfg内容:

tickTime=2000

initLimit=10

syncLimit=5

dataDir=/tmp/zookeeper/zk1/data

dataLogDir=/tmp/zookeeper/zk1/logs

clientPort=2181

server.1=localhost:2287:3387

server.2=localhost:2288:3388

server.3=localhost:2289:3389


补充:在/tmp/zookeeper下创建/tmp/zookeeper/zk1/data

和/tmp/zookeeper/zk1/logs目录,并在data目录下创建名字为myid的文件,内容为数字:1


4.配置第二台服务,复制刚刚修改好的apache-zookeeper-3.6.2-bin-1目录并命名apache-zookeeper-3.6.2-bin-2,修改里面zoo.cfg文件,zoo.cfg内容:

tickTime=2000

initLimit=10

syncLimit=5

dataDir=/tmp/zookeeper/zk2/data

dataLogDir=/tmp/zookeeper/zk2/logs

clientPort=2182

server.1=localhost:2287:3387

server.2=localhost:2288:3388

server.3=localhost:2289:3389


补充:在/tmp/zookeeper下创建/tmp/zookeeper/zk2/data

和/tmp/zookeeper/zk2/logs目录,并在data目录下创建名字为myid的文件,内容为数字:2


5.配置第三台服务,复制刚刚修改好的apache-zookeeper-3.6.2-bin-1目录并命名apache-zookeeper-3.6.2-bin-3,修改里面zoo.cfg文件,zoo.cfg内容:

tickTime=2000

initLimit=10

syncLimit=5

dataDir=/tmp/zookeeper/zk2/data

dataLogDir=/tmp/zookeeper/zk2/logs

clientPort=2183

server.1=localhost:2287:3387

server.2=localhost:2288:3388

server.3=localhost:2289:3389



补充:在/tmp/zookeeper下创建/tmp/zookeeper/zk3/data

和/tmp/zookeeper/zk3/logs目录,并在data目录下创建名字为myid的文件,内容为数字:3


6.启动三台zookeeper服务,要关闭服务的话就将start改为stop,执行以下命令:

/usr/local/java/apache-zookeeper-3.6.2-bin-1/bin/zkServer.sh start

/usr/local/java/apache-zookeeper-3.6.2-bin-2/bin/zkServer.sh start

/usr/local/java/apache-zookeeper-3.6.2-bin-3/bin/zkServer.sh start


结果如下说明启动成功:

[root@xxx ~]# /usr/local/java/apache-zookeeper-3.6.2-bin-2/bin/zkServer.sh start

ZooKeeper JMX enabled by default

Using config: /usr/local/java/apache-zookeeper-3.6.2-bin-2/bin/../conf/zoo.cfg

Starting zookeeper ... STARTED



7.查看各个zookeeper服务的角色,执行/usr/local/java/apache-zookeeper-3.6.2-bin-3/bin/zkServer.sh status,Mode: leader表示是领导者:

[root@s ~]# /usr/local/java/apache-zookeeper-3.6.2-bin-3/bin/zkServer.sh status

ZooKeeper JMX enabled by default

Using config: /usr/local/java/apache-zookeeper-3.6.2-bin-3/bin/../conf/zoo.cfg

Client port found: 2183. Client address: localhost. Client SSL: false.

Mode: leader



8.客户端连接任意一台服务,假如我想连接第一台就执行:/usr/local/java/apache-zookeeper-3.6.2-bin-1/bin/zkCli.sh -server 127.0.0.1:2181


9.连接成功后,创建一个测试节点试一试集群效果,节点名是/myZnode,值是my znode:

create /myZnode "my znode"


10.再另外打开一个窗口重新连接另一台服务:/usr/local/java/apache-zookeeper-3.6.2-bin-2/bin/zkCli.sh -server 127.0.0.1:2182

然后执行get   /myZnode 也能获取得到第一个设置的值说明集群成功。


结果:

[zk: 127.0.0.1:2182(CONNECTED) 0] get /myZnode

my znode


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