brew安裝zookeeper

zookeeper支持brew安裝。

$brew info zookeeper
zookeeper: stable 3.4.6 (bottled), HEAD
Centralized server for distributed coordination of services
https://zookeeper.apache.org/
/usr/local/Cellar/zookeeper/3.4.6_1 (208 files, 13M) *
  Poured from bottle
From: https://github.com/Homebrew/homebrew/blob/master/Library/Formula/zookeeper.rb
==> Options
--with-perl
    Build Perl bindings
--with-python
    Build with python support
--HEAD
    Install HEAD version
==> 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

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安裝

$brew install zookeeper
==> Downloading https://homebrew.bintray.com/bottles/zookeeper-3.4.6_1.mavericks.bottle.2.tar.gz
######################################################################## 100.0%
==> Pouring zookeeper-3.4.6_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/3.4.6_1: 207 files, 13M

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安裝後，在/usr/local/etc/zookeeper/目錄下，已經有了缺省的配置文件。

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

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缺省配置[/usr/local/etc/zookeeper/zoo.cfg] 內容如下

    $less -N /usr/local/etc/zookeeper/zoo.cfg 

      1 # The number of milliseconds of each tick
      2 tickTime=2000
      3 # The number of ticks that the initial 
      4 # synchronization phase can take
      5 initLimit=10
      6 # The number of ticks that can pass between 
      7 # sending a request and getting an acknowledgement
      8 syncLimit=5
      9 # the directory where the snapshot is stored.
     10 # do not use /tmp for storage, /tmp here is just 
     11 # example sakes.
     12 dataDir=/usr/local/var/run/zookeeper/data
     13 # the port at which the clients will connect
     14 clientPort=2181
     15 # the maximum number of client connections.
     16 # increase this if you need to handle more clients
     17 #maxClientCnxns=60
     18 #
     19 # Be sure to read the maintenance section of the 
     20 # administrator guide before turning on autopurge.
     21 #
     22 # http://zookeeper.apache.org/doc/current/zookeeperAdmin.html#sc_maintenance
     23 #
     24 # The number of snapshots to retain in dataDir
     25 #autopurge.snapRetainCount=3
     26 # Purge task interval in hours
     27 # Set to "0" to disable auto purge feature
     28 #autopurge.purgeInterval=1

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啓動服務

執行命令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

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查看zookeeper運行及狀態

安裝後，可以看到zookeeper提供了zkCli等工具進行.

$zkCli
Connecting to localhost:2181

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

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