zookeeper版本：zookeeper-3.4.10.tar.gz
下載好zookeeper之後，放到/usr/local目錄下
1.建立zookeeper目錄，並在zookeeper目錄下，建立三個資料夾，分別為server1，server2，server3

cd /usr/local
mkdir zookeeper
cd zookeeper
mkdir server1
mkdir server2
mkdir server3

2.將zookeeper壓縮包分別解壓到三個資料夾中

tar -zxvf /usr/local/zookeeper-3.4.10.tar.gz -C /usr/local
 
/zookeeper/server1

tar -zxvf /usr/local/zookeeper-3.4.10.tar.gz -C /usr/local/zookeeper/server2

tar -zxvf /usr/local/zookeeper-3.4.10.tar.gz -C /usr/local/zookeeper/server3

3.在解壓的資料夾中分別建立data資料夾和logs資料夾

mkdir server1/zookeeper-3.4.10/data
mkdir server1/zookeeper-3.4.10/logs
mkdir server2/zookeeper-3.4.10/data
mkdir server2/zookeeper-3.4
 
.10/logs
mkdir server3/zookeeper-3.4.10/data
mkdir server3/zookeeper-3.4.10/logs

4.在三個data資料夾中分別建立myid檔案，裡面的值從server1到server3分別為1，2，3

5.進入conf資料夾，生成zoo.cfg，並修改其內容

cd /usr/local/zookeeper/server1/zookeeper-3.4.10/conf
mv zoo_sample.cfg zoo.cfg
vi zoo.cfg

server1的zoo.cfg修改如下：

# 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.
# do not use /tmp for storage, /tmp here is just
# example sakes.
dataDir=/usr/local/zookeeper/server1/zookeeper-3.4.10/data
dataLogDir=/usr/local/zookeeper/server1/zookeeper-3.4.10/logs
# the port at which the clients will connect
clientPort=2181
# the maximum number of client connections.
# increase this if you need to handle more clients
#maxClientCnxns=60
#
# Be sure to read the maintenance section of the
# administrator guide before turning on autopurge.
#
# http://zookeeper.apache.org/doc/current/zookeeperAdmin.html#sc_maintenance
#
# The number of snapshots to retain in dataDir
#autopurge.snapRetainCount=3
# Purge task interval in hours
# Set to "0" to disable auto purge feature
#autopurge.purgeInterval=1
server.1=127.0.0.1:8881:7771
server.2=127.0.0.1:8882:7772
server.3=127.0.0.1:8883:7773

server2的zoo.cfg修改如下：

[[email protected] conf]# vi 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.
# do not use /tmp for storage, /tmp here is just
# example sakes.
dataDir=/usr/local/zookeeper/server2/zookeeper-3.4.10/data
dataLogDir=/usr/local/zookeeper/server2/zookeeper-3.4.10/logs
# the port at which the clients will connect
clientPort=2182
# the maximum number of client connections.
# increase this if you need to handle more clients
#maxClientCnxns=60
#
# Be sure to read the maintenance section of the
# administrator guide before turning on autopurge.
#
# http://zookeeper.apache.org/doc/current/zookeeperAdmin.html#sc_maintenance
#
# The number of snapshots to retain in dataDir
#autopurge.snapRetainCount=3
# Purge task interval in hours
# Set to "0" to disable auto purge feature
#autopurge.purgeInterval=1
server.1=127.0.0.1:8881:7771
server.2=127.0.0.1:8882:7772
server.3=127.0.0.1:8883:7773

server3的zoo.cfg修改如下：

[[email protected] conf]# vi 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.
# do not use /tmp for storage, /tmp here is just
# example sakes.
dataDir=/usr/local/zookeeper/server3/zookeeper-3.4.10/data
dataLogDir=/usr/local/zookeeper/server3/zookeeper-3.4.10/logs
# the port at which the clients will connect
clientPort=2183
# the maximum number of client connections.
# increase this if you need to handle more clients
#maxClientCnxns=60
#
# Be sure to read the maintenance section of the
# administrator guide before turning on autopurge.
#
# http://zookeeper.apache.org/doc/current/zookeeperAdmin.html#sc_maintenance
#
# The number of snapshots to retain in dataDir
#autopurge.snapRetainCount=3
# Purge task interval in hours
# Set to "0" to disable auto purge feature
#autopurge.purgeInterval=1
server.1=127.0.0.1:8881:7771
server.2=127.0.0.1:8882:7772
server.3=127.0.0.1:8883:7773

修改了dataDir，dataLogDir，clientPort的值，由於這是偽分散式叢集，所以clientPort一定不能相同。後面追加了server.?，這個？對應了myid裡面的值。

6.分別啟動三個zookeeper

cd /usr/local/zookeeper/server1/zookeeper-3.4.10/bin
./zkServer.sh start

cd /usr/local/zookeeper/server2/zookeeper-3.4.10/bin
./zkServer.sh start

cd /usr/local/zookeeper/server3/zookeeper-3.4.10/bin
./zkServer.sh start

7.檢視叢集狀態

分別進入三個server的bin目錄中使用./zkServer.sh status命令檢視狀態

三個的狀態分別為

ZooKeeper JMX enabled by default
Using config: /usr/local/zookeeper/server1/zookeeper-3.4.10/bin/../conf/zoo.cfg
Mode: follower

ZooKeeper JMX enabled by default
Using config: /usr/local/zookeeper/server2/zookeeper-3.4.10/bin/../conf/zoo.cfg
Mode: leader

ZooKeeper JMX enabled by default
Using config: /usr/local/zookeeper/server3/zookeeper-3.4.10/bin/../conf/zoo.cfg
Mode: follower