zookeeper install

2019-03-18 178 words 1 min read

win10下Zookeeper安装和使用


简介

ZooKeeper是一个分布式的,开放源码的分布式应用程序协调服务,是Google的Chubby一个开源的实现,是Hadoop和Hbase的重要组件。它是一个为分布式应用提供一致性服务的软件,提供的功能包括:配置维护、域名服务、分布式同步、组服务等。

ZooKeeper的目标就是封装好复杂易出错的关键服务,将简单易用的接口和性能高效、功能稳定的系统提供给用户。

ZooKeeper包含一个简单的原语集,提供Java和C的接口。

ZooKeeper代码版本中,提供了分布式独享锁、选举、队列的接口,代码在zookeeper-3.4.8\src\recipes。其中分布锁和队列有Java和C两个版本,选举只有Java版本。

下载

Apache官方最新版本为:3.4.13
下载地址:https://mirrors.cnnic.cn/apache/zookeeper/zookeeper-3.4.13/zookeeper-3.4.13.tar.gz

安装

解压到指定目录下:D:\zookeeper\zookeeper-3.4.13
修改zoo_sample.cfg 文件名(D:\zookeeper\zookeeper-3.4.13conf) 为 zoo.cfg
主要修改一下日志位置,具体配置文件如下:

# 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=D:\\zookeeper\\data
dataLogDir=D:\\zookeeper\\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
配置文件简单解析

  • tickTime: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。
  • dataDir:顾名思义就是 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。
  • dataLogDir:顾名思义就是 Zookeeper 保存日志文件的目录
  • clientPort:这个端口就是客户端连接 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。

启动

进入到bin目录,并且启动zkServer.cmd,这个脚本中会启动一个java进程

启动后jps可以看到QuorumPeerMain的进程

安装成功!


Tags: zookeeper

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Authored By WUHAOTIAN

A gentleman should always strive to improve himself

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