一、安装
cd /service rz -e tar zxvf zookeeper-3.4.6.tar.gz cp ./zookeeper-3.4.6/conf/zoo_sample.cfg ./zookeeper-3.4.6/conf/zoo.cfg二、修改配置 1、修改myid文件：
[root@h4 data]# pwd /opt/zookeeper-3.4.5-cdh5.5.1/data [root@h4 data]# more myid 4 [root@h4 data]# mkdir -p /var/lib/zookeeper touch /var/lib/zookeeper/myid echo "1" >/var/lib/zookeeper/myid cat /var/lib/zookeeper/myid2、修改hosts配置： 以下ip地址换成实际部署的地址
server.0=192.168.1.100:2888:3888 server.1=192.168.1.101:2888:3888 server.2=192.168.1.102:2888:3888以上不用修改hosts文件，直接在zoo.cfg文件下配置即可，要修改hosts也是可以的。
[root@beta-test-v5-zk01 ~]# cd /etc/ [root@beta-test-v5-zk01 etc]# vi hosts #hosts文件内容如下 127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6 192.168.217.140 beta-test-v5-zk01.novalocal 192.168.217.140 zoo1 192.168.217.141 zoo2 192.168.217.142 zoo3 192.168.217.140 beta-test-v5-zk01 192.168.217.141 beta-test-v5-zk02 192.168.217.142 beta-test-v5-zk03 192.168.212.116 beta-test-V5-zk013、修改zookeeper配置文件路径：
vi /service/zookeeper-3.4.6/conf/zoo.cfg #zoo.cfg文件内容如下： # 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=/tmp/zookeeper # 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 dataDir=/var/lib/zk/zookeeper dataLogDir=/var/lib/zk/logs server.1=zoo1:2888:3888 server.2=zoo2:2888:3888 server.3=zoo3:2888:3888三、同样配置第二台和第三台 第二台机器：
mkdir -p /var/lib/zookeeper touch /var/lib/zookeeper/myid echo "2" >/var/lib/zookeeper/myid cat /var/lib/zookeeper/myid第三台机器：
mkdir -p /var/lib/zookeeper touch /var/lib/zookeeper/myid echo "3" >/var/lib/zookeeper/myid cat /var/lib/zookeeper/myid四、启动zookeeper 每台服务器各自启动 进入目录： /opt/zookeeper-3.4.5-cdh5.5.1 启动命令：sh bin/zkServer.sh start 回车后启动 查看状态：sh bin/zkServer.sh status 回车后返回本台服务器是leader还是follower 例如：
ZooKeeper JMX enabled by default Using config: /service/zookeeper-3.4.10/bin/../conf/zoo.cfg Mode: leader----这样，说明启动正常 核心总结：zoo.cfg里面的ip配置，dataDir=/var/lib/zk/zookeeper目录下myid的设置，zookeeper的运行依赖于jdk，在搭建之前需具备jdk环境。 参考链接 问题记录： java.net.ConnectException: Connection refused
java.net.ConnectException: Connection refused at java.net.PlainSocketImpl.socketConnect(Native Method) at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:351) at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:213) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:200) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:432) at java.net.Socket.connect(Socket.java:529) at java.net.Socket.connect(Socket.java:478) at java.net.Socket.<init>(Socket.java:375) at java.net.Socket.<init>(Socket.java:189) at TCPClient.main(TCPClient.java:13)原因分析：
You are trying to connect to the wrong IP/Host or port.You have not started your server.Your server is not listening for connections.On Windows servers, the listen backlog queue is full. StackOverflow的解答