在虚拟机（VM）安装好+Hadoop集群搭建正确的前提下，才可以进行我们的Zookeeper组件安装啦

所需压缩包如下：

2.2 正式开始搭建

2.2.1 如何把Windows中压缩包上传到指定的虚拟机中某个文件夹下，请友友们翻看我发过的Hadoop集群完全分布式的搭建~（超详细版）的步骤流程，里面开头就演示过这个操作呢

2.2.2 先关闭外防火墙和安全模式
systemctl disable firewalld.service
hdfs dfsadmin -safemode leave

(1)解压文件
tar -zxvf 压缩包名字

(2)配置环境变量(并上传其他两个节点中)
vim ~/.bashrc

export ZOOKEEPER_HOME=~/zookeeper
export PATH=$ZOOKEEPER_HOME/bin:$PATH

source ~/.bashrc #使环境变量生效

(3)修改配置文件:(conf/zoo.cfg ）
cd /home/hadoop/zookeeper/conf #通过绝对路径进入配置文件里
cp zoo_sample.cfg zoo.cfg #备份文件一下

vim zoo.cfg （把文件里内容全部替换以下内容）

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/test_1/zookeeper/zookeeper_tmp #必须写绝对路径，不然服务器找不到，运行不起来

the port at which the clients will connect

clientPort=2181

server.1=analysis01:2888:3888
server.2=analysis02:2888:3888
server.3=analysis03:2888:3888

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

(4)创建文件夹然后编号
cd /home/test_1/zookeeper/zookeeper_tmp
mkdir zookeeper_tmp
cd zookeeper_tmp
vim myid #在analysis宿主机名下在这个文件里添加1
其他analysis02,analysis03如法炮制(和analysis01一样操作)，分别添加2,3

(5)向其他两个节点分发文件夹
scp -r zookeeper analysis02:/
scp -r zookeeper analysis03:/
scp /.bashrc analysis02:/
scp /.bashrc analysis03:/
source ~/.bashrc #分别在analysis02,analysis03，进行一下source(使环境变量生效)

特别注意！！！特别注意！！！所有的节点都要时区相同，不然启动不起来 ~

(6)启动并验证
在三个节点都运行面启动指令
zkServer.sh start #三个节点都要输入后，在输入以下的指令
zkServer.sh stop
zkServer.sh status

[hadoop@hadoop01 ~]$ jps
3682 ResourceManager
5650 QuorumPeerMain
5938 Jps
3207 NameNode
3450 SecondaryNameNode

[hadoop@hadoop01 ~]$ zkServer.sh status
ZooKeeper JMX enabled by default
Using config: /home/hadoop/zookeeper/bin/../conf/zoo.cfg
Client port found: 2181. Client address: localhost. Client SSL: false.
Mode: follower

#这是运行后查看状态

3.3 我们要实现的效果图如下

4.4 结束语

感谢友友们的支持和理解！若此篇文章有疑问之处，欢迎在评论区留言，收到后，我会一一答复的呐，后期我会不断地提高发表文章的质量，可能发表文章速度慢了点哈，但会一直持续更新的呢