CentOS7安装ZooKeeper(ZooKeeper3.3)

3台主机

192.168.30.207 Master

192.168.30.251 Node1

192.168.30.252 Node2

mkdir /tmp/zookeeper

tar -zxvf zookeeper-3.3.6.tar.gz

cp /hadoop/zookeeper-3.3.6/conf/zoo_sample.cfg /hadoop/zookeeper-3.3.6/conf/zoo.cfg

vi /hadoop/zookeeper-3.3.6/conf/zoo.cfg

# The number of milliseconds of each ticktickTime=2000# The number of ticks that the initial# synchronization phase can takeinitLimit=10# The number of ticks that can pass between# sending a request and getting an acknowledgementsyncLimit=5# the directory where the snapshot is stored.dataDir=/tmp/zookeeper# the port at which the clients will connectclientPort=2181initLimit=5syncLimit=2server.1=master:2888:3888server.2=node1:2888:3888server.3=node2:2888:3888

以上配置内容可参考:http://zookeeper.apache.org/doc/trunk/zookeeperStarted.html#sc_RunningReplicatedZooKeeper

复制到其他主机

scp -r /hadoop/zookeeper-3.3.6 root@node1:/hadoop/

scp -r /hadoop/zookeeper-3.3.6 root@node2:/hadoop/

设置myid,用于标志当前主机,myid值即上面配置文件中 server.X=

echo "1" > /tmp/zookeeper/myid       -master

echo "2" > /tmp/zookeeper/myid       -node1

echo "3" > /tmp/zookeeper/myid       -node2

启动,三台都要.

cd /hadoop/zookeeper-3.3.6/bin

./zkServer.sh start

输出:

JMX enabled by defaultUsing config: /hadoop/zookeeper-3.3.6/bin/../conf/zoo.cfgStarting zookeeper ... STARTED

验证启动状态:

./zkServer.sh status

我的三台分别是:

master:

JMX enabled by defaultUsing config: /hadoop/zookeeper-3.3.6/bin/../conf/zoo.cfgMode: follower

node1:

JMX enabled by defaultUsing config: /hadoop/zookeeper-3.3.6/bin/../conf/zoo.cfgMode: leader

node2:

JMX enabled by defaultUsing config: /hadoop/zookeeper-3.3.6/bin/../conf/zoo.cfgMode: follower

可以看到我的node1是leader.

测试各Server是否已经启动:

echo ruok|nc master 2181

echo ruok|nc node1 2181

echo ruok|nc node2 2181

收到 imok 信息则表示成功了.

./zkServer.sh stop 停止