ZooKeeper Windows 集群搭建教程
ZooKeeper Windows 集群搭建
1 下载
========================================================================
ZooKeeper 下载地址：https://zookeeper.apache.org/releases.html#download
选择 Apache ZooKeeper 3.5.8(asc, sha512) 下载，解压文件到某一目录（目录不要带中文），本次测试解压后的目录是 apache-zookeeper-3.5.8。
2 修改配置文件 zoo.cfg
打开 apache-zookeeper-3.5.8 目录下的 conf 目录，复制 zoo_sample.cfg 文件并重命名为 zoo.cfg，使用 Notepad++ （或其他工具）打开文件 zoo.cfg，修改 dataDir 位置为：
dataDir=C:\\Software\\apache-zookeeper-3.5.8\\data
上面的 data 是数据存储的文件夹，需要自己新建（位置自己决定）。
3 集群搭建
集群搭建需要多个 ZooKeeper，本次使用：
- 1 个 Leader
- 2 个 Follower
- 1 个 Observer
一共 4 个 ZooKeeper。
复制 3 次 apache-zookeeper-3.5.8 目录并重命名为 apache-zookeeper-3.5.8-2、apache-zookeeper-3.5.8-3、apache-zookeeper-3.5.8-4，名字自己决定。
集群的搭建配置有三点需要修改：
- 配置文件修改
clientPort - 配置文件添加集群配置
data文件夹下添加myid文件
3.1 配置文件修改 clientPort
依次打开各个 ZooKeeper 的配置文件 zoo.cfg，修改 clientPort，每个端口号都不能重复，可以设置为 2181、2182 、2183、2184。
3.2 配置文件添加集群配置
每个 ZooKeeper 的配置文件下添加如下配置（端口号自己决定）：
server.1=127.0.0.1:2881:3881
server.2=127.0.0.1:2882:3882
server.3=127.0.0.1:2883:3883
server.4=127.0.0.1:2884:3884:observer
3.3 data 文件夹下添加 myid 文件
在每个 ZooKeeper 的 data 目录下新建 myid，注意文件名就叫 myid，没有任何后缀，内容依次为 1、2、3、4。
3.4 全部配置展示
- apache-zookeeper-3.5.8
.\conf 下的 zoo.cfg：
# 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=C:\\Software\\apache-zookeeper-3.5.8\\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
server.1=127.0.0.1:2881:3881
server.2=127.0.0.1:2882:3882
server.3=127.0.0.1:2883:3883
server.4=127.0.0.1:2884:3884:observer
.\data 下的 myid：
1
- apache-zookeeper-3.5.8-2
.\conf 下的 zoo.cfg：
# 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=C:\\Software\\apache-zookeeper-3.5.8-2\\data
# the port at which the clients will connect
clientPort=2182
# 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
server.1=127.0.0.1:2881:3881
server.2=127.0.0.1:2882:3882
server.3=127.0.0.1:2883:3883
server.4=127.0.0.1:2884:3884:observer
.\data 下的 myid：
2
- apache-zookeeper-3.5.8-3
.\conf 下的 zoo.cfg：
# 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=C:\\Software\\apache-zookeeper-3.5.8-3\\data
# the port at which the clients will connect
clientPort=2183
# 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
server.1=127.0.0.1:2881:3881
server.2=127.0.0.1:2882:3882
server.3=127.0.0.1:2883:3883
server.4=127.0.0.1:2884:3884:observer
.\data 下的 myid：
3
- apache-zookeeper-3.5.8-4
.\conf 下的 zoo.cfg：
# 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=C:\\Software\\apache-zookeeper-3.5.8-4\\data
# the port at which the clients will connect
clientPort=2184
# 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
server.1=127.0.0.1:2881:3881
server.2=127.0.0.1:2882:3882
server.3=127.0.0.1:2883:3883
server.4=127.0.0.1:2884:3884:observer
.\data 下的 myid：
4
4 脚本
集群实例如果依次启动比较麻烦，可以创建脚本快速启动，新建文件 zookeeperstart.bat，文件内容如下：
@echo off
title zookeeper集群启动
cd /d C:\Software\apache-zookeeper-3.5.8\bin
start zkServer.cmd
echo zookeeper集群节点1启动
cd /d C:\Software\apache-zookeeper-3.5.8-2\bin
start zkServer.cmd
echo zookeeper集群节点2启动
cd /d C:\Software\apache-zookeeper-3.5.8-3\bin
start zkServer.cmd
echo zookeeper集群节点3启动
cd /d C:\Software\apache-zookeeper-3.5.8-4\bin
start zkServer.cmd
echo zookeeper集群节点4启动
pause