mkdir -p /usr/local/services/zookeeper 

  cd /usr/local/services/zookeeper

 wget https://mirrors.tuna.tsinghua.edu.cn/apache/zookeeper/zookeeper-3.4.9/zookeeper-3.4.9.tar.gz 

  tar -zxvf zookeeper-3.4.9.tar.gz

cd zookeeper-3.4.9/conf/ 

cp zoo_sample.cfg zoo.cfg 

# The number of milliseconds of each tick
    # zookeeper 定义的基准时间间隔，单位：毫秒
  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=/tmp/zookeeper
   # 数据文件夹
  dataDir=/usr/local/services/zookeeper/zookeeper-3.4.9/data
   # 日志文件夹
  dataLogDir=/usr/local/services/zookeeper/zookeeper-3.4.9/logs
   # the port at which the clients will connect
   # 客户端访问 zookeeper 的端口号
  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 

 # idea - zookeeper-3.4.9 config start - 2016-09-08
   export ZOOKEEPER_HOME=/usr/local/services/zookeeper/zookeeper-3.4.9/
   export PATH=$ZOOKEEPER_HOME/bin:$PATH
   export PATH
   # idea - zookeeper-3.4.9 config start - 2016-09-08

 source /etc/profile 

zkServer.sh start

  ZooKeeper JMX enabled by default
   Using config: /usr/local/services/zookeeper/zookeeper-3.4.9/bin/../conf/zoo.cfg
   Starting zookeeper ... STARTED 

  zkServer.sh status 

 zkServer.sh stop

 ZooKeeper JMX enabled by default
   Using config: /usr/local/services/zookeeper/zookeeper-3.4.9/bin/../conf/zoo.cfg
   Stopping zookeeper ... STOPPED

zkServer.sh restart

  ZooKeeper JMX enabled by default
   Using config: /usr/local/services/zookeeper/zookeeper-3.4.9/bin/../conf/zoo.cfg
   ZooKeeper JMX enabled by default
   Using config: /usr/local/services/zookeeper/zookeeper-3.4.9/bin/../conf/zoo.cfg
   Stopping zookeeper ... STOPPED
   ZooKeeper JMX enabled by default
   Using config: /usr/local/services/zookeeper/zookeeper-3.4.9/bin/../conf/zoo.cfg
   Starting zookeeper ... STARTED