Mac os zookeeper的安装

zookeeper支持brew安装。

 brew info zookeeper
zookeeper: stable 3.4.9 (bottled), HEAD
Centralized server for distributed coordination of services
https://zookeeper.apache.org/
Not installed
From: https://github.com/Homebrew/homebrew-core/blob/master/Formula/zookeeper.rb
==> Requirements
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

安装

$brew install zookeeper
==> Downloading https://homebrew.bintray.com/bottles/zookeeper-3.4.9_1.mavericks.bottle.2.tar.gz
######################################################################## 100.0%
==> Pouring zookeeper-3.4.9_1.mavericks.bottle.2.tar.gz
==> Caveats
To have launchd start zookeeper at login:
  ln -sfv /usr/local/opt/zookeeper/*.plist ~/Library/LaunchAgents
Then to load zookeeper now:
  launchctl load ~/Library/LaunchAgents/homebrew.mxcl.zookeeper.plist
Or, if you don't want/need launchctl, you can just run:
  zkServer start
==> Summary
��  /usr/local/Cellar/zookeeper/3.4.9_1: 207 files, 13M

安装后，在/usr/local/etc/zookeeper/目录下，已经有了缺省的配置文件。

ls /usr/local/etc/zookeeper
defaults        log4j.properties    zoo.cfg         zoo_sample.cfg

缺省配置[/usr/local/etc/zookeeper/zoo.cfg] 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=/usr/local/var/run/zookeeper/data
    # 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

启动服务

执行命令zkServer

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

$ zkServer  status
JMX enabled by default
Using config: /usr/local/etc/zookeeper/zoo.cfg
Error contacting service. It is probably not running.

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