安裝zookeeper也很簡單，下載zookeeper-3.1.1.tar.gz，解壓到/home/hezhiming/zookeeper-3.1.1。zookeeper要部署到各台機器的相同目錄下，且具有相同的配置文件。
配置：
clientPort
監聽客戶端連接的端口；
dataDir
存儲內存中數據庫快照的位置；
注意 應該謹慎地選擇日志存放的位置，使用專用的日志存儲設備能夠大大地提高系統的性能，如果將日志存儲在比較繁忙的存儲設備上，那么將會在很大程度上影響系統的性能。
tickTime
基本事件單元，以毫秒為單位。它用來控制心跳和超時，默認情況下最小的會話超時時間為兩倍的 tickTime 。
server.1=10.15.107.142:2888:3888
#server.2=hadoop.cluster.second_master:2888:3888
#server.3=hadoop.cluster.slave1:2888:3888
增加server.x選項，配置運行zookeeper的機器主機名或是IP地址，2888表示zookeeper程序監聽端口，3888表示zookeeper選舉通信端口。
注意：如果zookeeper啟動不了，把系統默認防火牆關閉后再試：sudo service iptables stop。
我的虛擬機linux上的zookeeper配置：
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=/hadoop/zookeeper-3.3.6/zookeeper_data
# the port at which the clients will connect
clientPort=3355
server.1=10.15.82.166:2555:3555
啟動和關閉zookeeper服務：
hfx@ubuntu:/hadoop/zookeeper-3.3.6/bin$ ./zkServer.sh start
JMX enabled by default
Using config: /hadoop/zookeeper-3.3.6/bin/../conf/zoo.cfg
Starting zookeeper ... STARTED
hfx@ubuntu:/hadoop/zookeeper-3.3.6/bin$ ./zkServer.sh stop
JMX enabled by default
Using config: /hadoop/zookeeper-3.3.6/bin/../conf/zoo.cfg
Stopping zookeeper ... STOPPED
監聽：
hfx@ubuntu:/hadoop/zookeeper-3.3.6/bin$ echo ruok | nc 127.0.0.1 3355
imok
這樣就代表了zookeeper服務啟動成功啦。
集群的zookeeper配置其實也是如此：
比如我想配3台機器的偽分布，copy3份配置文件
-rwxrw-r-- 1 hfx hfx 502 Mar 3 17:19 zoo1.cfg*
-rwxrw-r-- 1 hfx hfx 502 Mar 3 17:19 zoo2.cfg*
-rwxrw-r-- 1 hfx hfx 502 Mar 3 17:20 zoo3.cfg*
內容大同小異：
# 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=/hadoop/zookeeper-3.3.6/zookeeper_data1
# the port at which the clients will connect
clientPort=3351
server.1=10.15.91.115:8881:7771
server.2=10.15.91.115:8882:7772
server.3=10.15.91.115:8883:7773
再建3個文件夾存放數據
drwxrwxr-x 3 hfx hfx 4096 Mar 11 00:29 zookeeper_data1/
drwxrwxr-x 3 hfx hfx 4096 Mar 11 00:29 zookeeper_data2/
drwxrwxr-x 3 hfx hfx 4096 Mar 11 00:29 zookeeper_data3/
記得每個文件夾下建一個myid的文件，里面寫1或者2或者3。
啟動
./zkServer.sh start zoo1.cfg
./zkServer.sh start zoo2.cfg
./zkServer.sh start zoo3.cfg
如此而已！