之前介紹了zookeeper基本原理，這篇文章講zk集羣安裝
zk service節點列表
192.168.1.1 192.168.1.2 192.168.1.3
zk安裝包下載
[192.168.1.1]$ wget http://archive.apache.org/dist/hadoop/zookeeper/zookeeper-3.3.1/zookeeper-3.3.1.tar.gz
sudo 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/data dataLogDir=/usr/local/zookeeper/log clientPort=2181 initLimit=10 syncLimit=5 tickTime=2000 server.1=192.168.1.1:2888:3888 server.2=192.168.1.2:2888:3888 server.3=192.168.1.3:2888:3888
建立配置路徑
/usr/local/zookeeper/data 是zk meta信息持久化到磁盤的路徑 /usr/local/zookeeper/log 是zk log的存放路徑 myid的數值就是server.N的N數字 [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狀態控制
集羣啓動
[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
狀態查看
/usr/local/zookeeper/bin/zkServer.sh status 可以查看哪個是leader，剩餘的就是follower
zk自帶console
[192.168.1.1]$ zkCli.sh -server 192.168.1.1:2181 [zk: 192.168.1.1:2181(CONNECTED) 8] ls / [zookeeper] /zookeeper是預保留的
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