Mac下安装zookeeper

zookeeper支持brew安装，建议在Mac下就直接使用brew安装了。

zookeeper集群服务

一、运行brew info指令，查看对应的zookeeper信息

zookeeper: stable 3.4.10 (bottled), HEAD
Centralized server for distributed coordination of services
https://zookeeper.apache.org/
/usr/local/Cellar/zookeeper/3.4.10 (242 files, 31.4MB) *
  Poured from bottle on 2017-08-15 at 00:19:01
From: https://github.com/Homebrew/homebrew-core/blob/master/Formula/zookeeper.rb
==> Dependencies
Optional: python ✘
==> Options
--with-perl
	Build Perl bindings
--with-python
	Build with python support
--HEAD
	Install HEAD version
==> Caveats
To have launchd start zookeeper now and restart at login:
  brew services start zookeeper
Or, if you don't want/need a background service you can just run:
  zkServer start

二、安装zookeeper

使用brew install zookeeper安装

Updating Homebrew...
==> Downloading https://homebrew.bintray.com/bottles/zookeeper-3.4.10.high_sierra.bottle.1.tar.gz
######################################################################## 100.0%
==> Pouring zookeeper-3.4.10.high_sierra.bottle.1.tar.gz
==> Caveats
To have launchd start zookeeper now and restart at login:
  brew services start zookeeper
Or, if you don't want/need a background service you can just run:
  zkServer start
==> Summary
🍺  /usr/local/Cellar/zookeeper/3.4.10: 241 files, 31.4MB

安装完成后，对应的配置文件会存放在/usr/local/etc/zookeeper/目录下，建议使用默认配置，如需修改可直接更改/usr/local/etc/zookeeper/zoo.cfg文件

三、启动zookeeper:使用推荐的zkServer start指令启动zookeeper

ZooKeeper JMX enabled by default
Using config: /usr/local/etc/zookeeper/zoo.cfg
Starting zookeeper ... STARTED

使用zkServer help指令可查看zkServer支持的参数

ZooKeeper JMX enabled by default
Using config: /usr/local/etc/zookeeper/zoo.cfg
Usage: ./zkServer.sh {start|start-foreground|stop|restart|status|upgrade|print-cmd}

四、使用zkCli指令查看zookeeper运行状态

Connecting to localhost:2181
Welcome to ZooKeeper!
JLine support is enabled
[zk: localhost:2181(CONNECTING) 0] 
WATCHER::

WatchedEvent state:SyncConnected type:None path:null

[zk: localhost:2181(CONNECTED) 0] ls
[zk: localhost:2181(CONNECTED) 1] ls /
[zookeeper]
[zk: localhost:2181(CONNECTED) 2] ls /zookeeper
[quota]
[zk: localhost:2181(CONNECTED) 3] ls /zookeeper/quota
[]
[zk: localhost:2181(CONNECTED) 4] 

至此，Mac下已经成功安装zookeeper并能够正常运行了，接下来可以继续其它对接zookeeper的工作了