搭建环境
1.ubuntu 16.04 LTS
2.zookeeper-3.5.1-alpha
3.dubbo 调用
搭建过程
使用官方源码包进行安装
1.资源准备
zookeeper-3.5.1-alpha.tar.gz 源码包
官方稳定版下载地址http://apache.fayea.com/zookeeper/
2.开始安装
1]解压压缩包到指定目录
tar -zxvf zookeeper-3.5.1-alpha.tar.gz -C /home/zhoudazhuang/local/
2]使用第一步解压的源码包路径，cd /home/zhoudazhuang/local/zookeeper-3.5.1-alpha/conf 拷贝一份zoo_sample.cfg ，并命名为zoo.cfg
3]编辑zoo.cfg
vim zoo.cfg
主要修改这几个地方：
- 增加dataDir和dataLogDir节点（目录自己创建并指定，作为数据存储目录和日志文件目录，很有用），增加配置如下：
```dataDir=/home/strong/usr/local/zookeeper-3.5.1-alpha/data dataLogDir=/home/strong/usr/local/zookeeper-3.5.1-alpha/logs```
- 指定server地址
```server.1=172.16.64.125:2888:3888```
*注：server.id=hostname:port:port。第一个端口用于集合体中的 follower 以侦听 leader；第二个端口用于 Leader 选举。第一个hostname即为本服务器地址*
完整配置如下：
# 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=/home/strong/usr/local/zookeeper-3.5.1-alpha/data
dataLogDir=/home/strong/usr/local/zookeeper-3.5.1-alpha/logs
# the port at which the clients will connect
clientPort=2181
server.1=172.16.64.125:2888:3888
# 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]在上一步设置的data目录中新建文件mydata,并填入上一步中配置的server.1中的数字，我这里是1,这里相当于是编了号的服务器，有多台可参考此配置。
5]在系统变量path中加入zookeeper （此处可省略）
export ZOOKEEPER_HOME=/home/hadooptest/zookeeper-3.4.3
PATH=$ZOOKEEPER_HOME/bin:$PATH
6]zookeeper服务的启动与客户端的连接（调用命令在zookeeper的bin文件夹）
zkServer.sh start
zkCli.sh -server 172.16.64.125:2181(此处我在172.16.64.111中客户端对服务端进行调用)
参考
1.zookeeper官方参考文档1http://www.cloudera.com/content/www/zh-CN/documentation/enterprise/5-3-x/topics/cdh_ig_zookeeper_package_install.html
2.zookeeper官方参考文档2http://zookeeper.majunwei.com/document/3.4.6/GettingStarted.html