1.安裝jdk1.7，配置環境變數

      tar -zxvf ./jdk-7u71-linux-x64.tar.gz

     配置環境變數

       進入/etc/profile， 貼上以下指令碼到檔案，儲存檔案。

         export PATH=/usr/jdk1.7.0_71/bin:$PATH
         export classpath=/usr/jdk1.7.0_71/lib
         export JAVA_HOME=/usr/jdk1.7.0_7

  2.下載zookeeper-3.4.6.tar.gz

       http://apache.fayea.com/zookeeper/zookeeper-3.4.6/

  3.解壓zookeeper-3.4.6.tar.gz

      tar -zvxf zookeeper-3.4.6.tar.gz

   4.修改zookeeper-3.4.6/conf目錄，修改zookeeper_sample.cfg為 zoo.cfg

              cp zoo_sample.cfg zoo.cfg

    5.配置zoo.cfg dataDir目錄和log目錄

    # 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=/home/user/software/zookeeper-3.4.6/data
    dataLogDir=/home/user/software/zookeeper-3.4.6/log
    # 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.
    #
    # 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

引數說明：

tickTime：ZK中的一個時間單元。ZK所有時間都是以這個時間單元為基礎，進行整數倍配置。例如session的最小超時時間是2*ticktime。
       dataDir：zookeeper的工作目錄，註釋寫得很清楚，只有測試環境才使用tmp目錄，否則都建議進行專門的設定。
       dataLogDir:zookerper日誌輸出的目錄
       clientPort：客戶端的連線埠
       maxClientCnxns：客戶端最大連線數
       clientport:客戶端連線server的埠，即對外服務埠，一般設定為2181

 6.啟動zookeeper，進入bin目錄

         ./zkServer.sh start

7.檢查zookeeper是否啟動成功，採用jps命令即可

   出現如下內容說明啟動成功
      3129 Jps
      2973 QuorumPeerMain
     QuorumPeerMain這個程序就是zookeeper的程序。至此，zookeeper的單節點安裝就成功了。

8.檢視後臺的zookeeper節點資訊,進入bin目錄執行如下命令

        ./zkCli.sh