Zookeeper安装指南

第一步：修改conf目录下面的 zoo_sample.cfg修改为zoo.cfg

tickTime=2000

# The number of ticks that the initial

# synchronization phase can take

initLimit=10

# The number of ticks that can pass between

# sending a request and getting an acknowledgement

syncLimit=5

# the directory where the snapshot is stored.

# do not use /tmp for storage, /tmp here is just

# example sakes.

dataDir=/home/zookeeper/data

dataLogDir=/home/zookeeper/log

# the port at which the clients will connect

clientPort=2181

serverlist

server.1=nj02-rp-2014-q1-01-jh2-210.nj02:2888:3888

server.2=nj02-rp-2014-q1-01-jh2-212.nj02:2888:3888

server.3=nj02-rp-2014-q1-01-jh2-211.nj02:2888:3888

第二步： mkdir -p /home/zookeeper/data && mkdir -p /home/zookeeper/log

在我们配置的dataDir指定的目录下面，创建一个myid文件，里面内容为一个数字，用来标识当前主机，conf/zoo.cfg文件中配置的server.X中X为什么数字，则myid文件中就输入这个数字，例如： [plain] view plaincopy hadoop@slave-01:~/installation/zookeeper-3.3.4$ echo "1" > /home/zookeeper/data/myid hadoop@slave-02:~/installation/zookeeper-3.3.4$ echo "2" > /home/zookeeper/data/myid

第三步：启动ZooKeeper集群

bin/zkServer.sh start

第四步 查看zookeeper集群是否启动

zkServer.sh status

[root@master ~]# zkServer.sh status 
JMX enabled by default 
Using config: /usr/zookeeper-3.3.3/bin/../conf/zoo.cfg 
Mode: follower

leader的显示是：

JMX enabled by default 
Using config: /usr/zookeeper-3.3.3/bin/../conf/zoo.cfg 
Mode: leader