zookeeper学习

先给一堆学习文档，方便以后查看

学习文档

http://www.cnblogs.com/sunddenly/category/620563.html

zookeeper集群windows安装

• 首先下载zookeeper
• 解压zookeeper包（复制两份）
• 进去zookeeper的conf目录下把zoo_sample.cfg复制一份zoo.cfg
• 修改zoo.cfg(伪集群，在一台机器上开3个端口)(PS: server.X和myid： server.X 这个数字就是对应，data/myid中的数字)
• 在dataDir的路径下添加myid文件（分别定为1，2，3）
• 进去zookeeper下bin目录执行zkServer.cmd启动
• 进去zookeeper下bin目录执行zkCli.cmd在客户端可以执行命令

2181端口：

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:/Users/gdyt-/Desktop/2181/data
# the directory where the log  
dataLogDir=C:/Users/gdyt-/Desktop/2181/log
# 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=10.2.152.241:2888:3888  
server.2=10.2.152.241:2889:3889  
server.3=10.2.152.241:2890:3890

2182端口：

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:/Users/gdyt-/Desktop/2182/data
# the directory where the log  
dataLogDir=C:/Users/gdyt-/Desktop/2182/log
# 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=10.2.152.241:2888:3888  
server.2=10.2.152.241:2889:3889  
server.3=10.2.152.241:2890:3890

2183端口：

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:/Users/gdyt-/Desktop/2183/data
# the directory where the log  
dataLogDir=C:/Users/gdyt-/Desktop/2183/log
# 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=10.2.152.241:2888:3888  
server.2=10.2.152.241:2889:3889  
server.3=10.2.152.241:2890:3890

server.A=B：C：D

A：其中 A 是一个数字，表示这个是服务器的编号；
B：是这个服务器的 ip 地址；
C：Zookeeper服务器之间的通信端口；
D：Leader选举的端口。

zookeeper-java使用

github：https://github.com/EarthXuan/zookeeper-demo.git