CentOS7安装zookeeper

在CentOS7上安装zookeeper-3.4.9服务。

1、下载zookeeper-3.4.9：

wget http://apache.fayea.com/zookeeper/zookeeper-3.4.9/zookeeper-3.4.9.tar.gz

2、解压缩zookeeper-3.4.9.tar.gz:

tar -zxvf zookeeper-3.4.9.tar.gz

3、移动zookeeper-3.4.9到/usr/local目录下

mv zookeeper-3.4.9 /usr/local/zookeeper-3.4.9

4、进入到conf目录

cd /usr/local/zookeeper-3.4.9/conf

5、复制zoo_sample.cfg文件并且命名为zoo.cfg

cp zoo_sample.cfg zoo.cfg

6、修改参数：

vi zoo.cfg

# The number of milliseconds of each tick
#这个时间是作为Zookeeper 服务器之间或客户端与服务器之间维持心跳的时间间隔，也就是每个 tickTime 时间就会发送一个心跳
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.
#zookeeper保存数据的目录，默认情况下zookeeper将写数据的日志文件也保存在这个目录里
dataDir=/usr/local/zookeeper-3.4.9/tmp/zookeeper
# the port at which the clients will connect
#客户端连接zookeeper服务器的端口，zookeeper会监听这个端口，接受客户端的访问请求
clientPort=2181
# the maximum number of client connections.
# increase this if you need to handle more clients
#限制连接到zooKeeper的客户端的数量
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

7、启动zookeeper