Zookeeper安装部署
Zookeeper安装部署一、下载zookeeper安装文件
# wget http://www.apache.org/dist//zookeeper/zookeeper-3.3.6/zookeeper-3.3.6.tar.gz
# tar -zxvf zookeeper-3.3.6.tar.gz
# cp -r zookeeper-3.3.6 /usr/local/
# cd /usr/local/
# chown -R hadoop:hadoop zookeeper-3.3.6/
二、修改配置文件
# cd zookeeper-3.3.6/conf/
# cp zoo_sample.cfg zoo.cfg
# vim zoo.cfg
# The number of milliseconds of each tick
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.
dataDir=/tmp/zookeeper
# the port at which the clients will connect
clientPort=2181
#server.A=B：C：D：其中 A 是一个数字，表示这个是第几号服务器；B 是这个服务器的 ip 地址；C 表示的是这个服务器与集群中的 Leader 服务器交换信息的端口；D 表示的是万一集群中的 #Leader 服务器挂了，需要一个端口来重新进行选举，选出一个新的 Leader，而这个端口就是用来执行选举时服务器相互通信的端口。如果是伪集群的配置方式，由于 B 都是一样，所以不同的 #Zookeeper 实例通信端口号不能一样，所以要给它们分配不同的端口号。
server.1=192.168.101.230:2555:3555
server.2=192.168.101.231:2555:3555
server.2=192.168.101.232:2555:3555
三、修改权限，建立data目录并赋予权限
# scp -r zookeeper-3.3.6/ root@slave1:/usr/local/
# scp -r zookeeper-3.3.6/ root@slave2:/usr/local/
# ssh slave1
root@slave1's password:
Last login: Tue Apr5 16:57:35 2016 from master
# cd /usr/local/
# chown -R hadoop:hadoop zookeeper-3.3.6/
# su hadoop
$ cd zookeeper-3.3.6/
$ cd conf/
$ mkdir /tmp/zookeeper
$ cd /tmp/zookeeper/
$ mkdir data
$ vim myid
1
同理，slave1上myid为2，在slave2上输入myid=3
修改权限，data目录修改属主和属组为hadoop，master、slave1和slave2上都得修改权限
# chown -R hadoop:hadoop /tmp/zookeeper/
四、启动zookeeper
$ ./zkServer.sh start
JMX enabled by default
Using config: /usr/local/zookeeper-3.3.6/bin/../conf/zoo.cfg
Starting zookeeper ... STARTED
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