zookeeper集群安装配置

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之前介绍了zookeeper基本原理，这篇文章讲zk集群安装

zk service节点列表

192.168.1.1192.168.1.2192.168.1.3

zk安装包下载

[192.168.1.1]$ wget http://archive.apache.org/dist/hadoop/zookeeper/zookeeper-3.3.1/zookeeper-3.3.1.tar.gzsudo tar -zxvf /home/wanghua.wh/zookeeper-3.3.1.tar.gz -C /usr/local/[192.168.1.1]$ sudo mkdir /usr/local/zookeeper[192.168.1.1]$ sudo mv /usr/local/zookeeper-3.3.1/ /usr/local/zookeeper[192.168.1.1]$ cd /usr/local/zookeeper/conf[192.168.1.1]$ cp zoo_sample.cfg zoo.cfg

zk配置

[192.168.1.1]$ vim zoo.cfg

dataDir=/usr/local/zookeeper/datadataLogDir=/usr/local/zookeeper/logclientPort=2181 initLimit=10 syncLimit=5 tickTime=2000server.1=192.168.1.1:2888:3888 server.2=192.168.1.2:2888:3888 server.3=192.168.1.3:2888:3888

建立配置路径

/usr/local/zookeeper/data 是zk meta信息持久化到磁盘的路径/usr/local/zookeeper/log  是zk log的存放路径myid的数值就是server.N的N数字[192.168.1.1]$ mkdir /usr/local/zookeeper/data[192.168.1.1]$ mkdir /usr/local/zookeeper/log[192.168.1.1]$ echo 1 > /usr/local/zookeeper/data/myid[192.168.1.2]$ mkdir /usr/local/zookeeper/data[192.168.1.2]$ mkdir /usr/local/zookeeper/log[192.168.1.2]$ echo 2 > /usr/local/zookeeper/data/myid[192.168.1.3]$ mkdir /usr/local/zookeeper/data[192.168.1.3]$ mkdir /usr/local/zookeeper/log[192.168.1.3]$ echo 3 > /usr/local/zookeeper/data/myid

zk状态控制

集群启动

[192.168.1.1]$ /usr/local/zookeeper/bin/zkServer.sh start[192.168.1.2]$ /usr/local/zookeeper/bin/zkServer.sh start[192.168.1.3]$ /usr/local/zookeeper/bin/zkServer.sh start

状态查看

/usr/local/zookeeper/bin/zkServer.sh status可以查看哪个是leader，剩余的就是follower

zk自带console

[192.168.1.1]$ zkCli.sh -server 192.168.1.1:2181[zk: 192.168.1.1:2181(CONNECTED) 8] ls /[zookeeper]/zookeeper是预保留的

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