[大数据]zookeeper安装与启动

Mac上zookeeper的安装与启动

方法一：
1.从zookeeper下载地址下载
以下载的zookeeper-3.4.10.tar.gz为例

> tar -zxvf zookeeper-3.4.10.tar.gz //解压
> cd zookeeper-3.4.10/conf //切换到配置目录下
> mv zoo_sample.cfg zoo.cfg //更改默认配置文件名称
> vi zoo.cfg //编辑配置文件，自定义dataDir

启动服务zkServer

> cd zookeeper-3.4.10/bin //切换到 bin目录
> ./zkServer.sh start //启动
ZooKeeper JMX enabled by default
Using config: zookeeper-3.4.10/bin/../conf/zoo.cfg
Starting zookeeper ... STARTED

Cli连接

> cd zookeeper-3.4.10/bin //切换到 bin目录
> ./zkCli.sh -server 127.0.0.1:2181
[zk: 127.0.0.1:2181(CONNECTED) 0] help //输入help命令
ZooKeeper -server host:port cmd args
    stat path [watch]
    set path data [version]
    ls path [watch]
    delquota [-n|-b] path
    ls2 path [watch]
    setAcl path acl
    setquota -n|-b val path
    history
    redo cmdno
    printwatches on|off
    delete path [version]
    sync path
    listquota path
    rmr path
    get path [watch]
    create [-s] [-e] path data acl
    addauth scheme auth
    quit
    getAcl path
    close
    connect host:port

/官方测试命令

[zk: 127.0.0.1:2181(CONNECTED) 2] ls /
[zookeeper]

方法二：
brew install zookeeper

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

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

## Metrics Providers
#
# https://prometheus.io Metrics Exporter
#metricsProvider.className=org.apache.zookeeper.metrics.prometheus.PrometheusMetricsProvider
#metricsProvider.httpPort=7000
#metricsProvider.exportJvmInfo=true

启动服务zkServer

?  zookeeper zkServer 
ZooKeeper JMX enabled by default
Using config: /usr/local/etc/zookeeper/zoo.cfg
Usage: /usr/local/Cellar/zookeeper/3.7.0_1/libexec/bin/zkServer.sh [--config <conf-dir>] {start|start-foreground|stop|version|restart|status|print-cmd}
?  zookeeper zkServer  status
ZooKeeper JMX enabled by default
Using config: /usr/local/etc/zookeeper/zoo.cfg
Client port found: 2181. Client address: localhost. Client SSL: false.
Error contacting service. It is probably not running.
?  zookeeper zkServer  start
ZooKeeper JMX enabled by default
Using config: /usr/local/etc/zookeeper/zoo.cfg
Starting zookeeper ... STARTED
?  zookeeper 

查看zookeeper运行及状态
安装后，可以看到zookeeper提供了zkCli等工具进行.

?  zookeeper zkCli
Connecting to localhost:2181
Welcome to ZooKeeper!
JLine support is enabled

WATCHER::

WatchedEvent state:SyncConnected type:None path:null
[zk: localhost:2181(CONNECTED) 0] ls
ls [-s] [-w] [-R] path
[zk: localhost:2181(CONNECTED) 1] ls /
[zookeeper]
[zk: localhost:2181(CONNECTED) 2] ls /zookeeper 
[config, quota]
[zk: localhost:2181(CONNECTED) 3] ls /zookeeper/quota 
[]
[zk: localhost:2181(CONNECTED) 4] 

最后

停止Server：zkServer stop
启动 zkServer start