【linux 安装zookeeper 】

1、下载zookeeper安装包

https://downloads.apache.org/zookeeper/
这里下载的是：apache-zookeeper-3.8.0-bin.tar.gz 版本

2、上传zookeeper 的安装包到Linux 服务器上面

在home目录下新建/zookeeper目录

cd /home/
mkdir zookeeper
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将下载的压缩包上传到/home/zookeeper目录下

3、解压

tar -zxvf apache-zookeeper-3.8.0-bin.tar.gz
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在 /zookeeper目录下创建一个文件夹 zookeeperData 用来存放zookeeper 的数据文件

cd /home/zookeeper/
mkdir zookeeperData
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修改配置文件

复制cp zoo_sample.cfg zoo.cfg

#进入 /home/zookeeper/apache-zookeeper-3.8.0-bin/conf 目录
 cd /home/zookeeper/apache-zookeeper-3.8.0-bin/conf
 # 复制 zoo_sample.cfg 文件,并重命名为zoo.cfg 否则zookeeper不会生效
 cp zoo_sample.cfg zoo.cfg
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编辑 zoo.cfg 文件,

修改 dataDir 属性等于 /tmp/zookeeper 如下第13行所示

 # 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.
 # 主要是这里<需要修改成zookeeper的数据文件目录>
 dataDir=/home/zookeeper/zookeeperData
 # 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
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修改后保存退出

启动/关闭/查看状态 zookeeper 服务

1.进入zookeeper安装目录的bin 目录

 cd /home/zookeeper/apache-zookeeper-3.8.0-bin/bin
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2. 启动zookeeper

 ./zkServer.sh start
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3. 关闭zookeeper

 ./zkServer.sh stop
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4. 查看zookeeper的状态

 ./zkServer.sh status
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