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zookeeper集群搭建
1上传三个zookeeper到三个服务器,服务器ip分别为192.168.199.71,192.168.199.72,192.168.199.73,因为zookeeper会实行投票选举机制,所以集群数最好为奇数
2zookeeper分别解压到/usr/local/zookeeper目录下
3在zookeeper/conf下,复制zoo_sample.cfg为zoo.cfg,并修改zoo.cfg配置文件
tickTime=2000 dataDir=/usr/local/zookeeper/data dataLogDir=/usr/local/zookeeper/logs server.0=192.168.199.71:2888:3888 server.1=192.168.199.72:2888:3888 server.2=192.168.199.73:2888:3888
4在zookeeper下,分别建立文件夹data和logs
5 192.168.199.71,192.168.199.72,192.168.199.73三个服务器,在data目录分别建立文件myid,并且里面内容分别为0,1,2,和配置文件的配置对应
6分别启动三个zookeeper bin/zkServer.sh start
7查看三个状态 bin/zkServer.sh status,会看其实一台服务器mode为leader,另外两台为follower
[root@localhost zookeeper]# bin/zkServer.sh status ZooKeeper JMX enabled by default Using config: /usr/local/zookeeper/bin/../conf/zoo.cfg Mode: leader [root@localhost zookeeper]# bin/zkServer.sh status ZooKeeper JMX enabled by default Using config: /usr/local/zookeeper/bin/../conf/zoo.cfg Mode: follower [root@localhost zookeeper]# bin/zkServer.sh status ZooKeeper JMX enabled by default Using config: /usr/local/zookeeper/bin/../conf/zoo.cfg Mode: follower
8关闭leader服务器,另外两台会有一台变为leader,而关闭的这台重新启动,会变成follower模式
zookeeper集群搭建
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