centos7搭建zookeeper

1. wget https://archive.apache.org/dist/zookeeper/zookeeper-3.4.12/zookeeper-3.4.12.tar.gz

2. tar -zxvf zookeeper-3.4.12.tar.gz

3. cd zookeeper-3.4.12/conf/

4.cp zoo_sample.cfg zoo.cfg

5.用 vim 打开 zoo.cfg 文件并修改其内容为如下：

# The number of milliseconds of each tick

# zookeeper 定义的基准时间间隔，单位：毫秒
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=/tmp/zookeeper

# 数据文件夹
dataDir=/usr/local/soft/zookeeper/zookeeper-3.4.9/data

# 日志文件夹
dataLogDir=/usr/local/soft/zookeeper/zookeeper-3.4.9/log

# the port at which the clients will connect
# 客户端访问 zookeeper 的端口号
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

6.cd zookeeper-3.4.12   创建data 和log 目录 

   mkdir data   mkdir log

7.  进入到 /usr/local/soft/zookeeper/zookeeper-3.4.12/bin 目录中：
./zkServer.sh start 

如打印如下信息则表明启动成功：
ZooKeeper JMX enabled by default
Using config: /usr/local/services/zookeeper/zookeeper-3.4.9/bin/../conf/zoo.cfg
Starting zookeeper ... STARTED

8.用 vim 打开 /etc/ 目录下的配置文件 profile：
vim /etc/profile
并在其尾部追加如下内容：

export ZOOKEEPER_HOME=/usr/local/soft/zookeeper/zookeeper-3.4.12/
export PATH=$ZOOKEEPER_HOME/bin:$PATH
export PATH

9. 使 /etc/ 目录下的 profile 文件即可生效：
source /etc/profile

10  配完环境变量 就可以 随便 输入 zookeeper命令

zkServer.sh  start   启动   zkServer.sh  stop  关闭  zkServer.sh  status  查看状态   zkServer.sh restart  重启