Zookeeper环境搭建

简介

本文主要介绍Zookeeper集群的安装和配置

下载zookeeper

到ZooKeeper官网上http://zookeeper.apache.org/下载软件包
下载及解压就不在赘述

配置zookeeper_home及path

vim /etc/profile

在profile中增加zookeeper_home的路径

#ZOOKEEPER_HOMEexport ZOOKEEPER_HOME=/home/spark/zookeeper/zookeeper-3.4.6export PATH=$PATH:$ZOOKEEPER_HOME/bin

ps：记着执行source /etc/profile,让profile的修改生效

配置zoo.cfg

cd $ZOOKEEPER_HOME/confcp zoo_sample.cfg zoo.cfg

复制一份conf文件夹下的zoo_sample.cfg文件，然后修改或添加以下内容.

# The number of milliseconds of each ticktickTime=2000# The number of ticks that the initial # synchronization phase can takeinitLimit=5# The number of ticks that can pass between # sending a request and getting an acknowledgementsyncLimit=2# the directory where the snapshot is stored.# do not use /tmp for storage, /tmp here is just # example sakes.dataDir=/home/spark/zookeeper/zookeeper-3.4.6/datadataLogDir=/home/spark/zookeeper/zookeeper-3.4.6/logs# the port at which the clients will connectclientPort=2181# the maximum number of client connections.# increase this if you need to handle more clients#maxClientCnxns=60server.1=master:2888:3888  server.2=node1:2888:3888  server.3=node2:2888:3888

这里参考官网的配置，master/node1/node2分别为安装zookeeper的节点
我们添加了两个文件路径，dataDir和dataLogDir，这两个文件夹本身是不存在的,需要自己创建.

配置myid

集群模式下还要配置一个文件myid,这个文件在dataDir目录下.
例如我们的master节点在zoo.cfg中配置为server.1=master:2888:3888,因此vim一个myid的文件，写入1即可

发送zookeeper到其他节点

使用scp将在master上配置好的zookeeper发送到其他的节点.

scp -r /home/spark/zookeeper root@node1:/home/spark

发送完毕后记着修改其他节点的myid文件.

启动zookeeper

在#ZOOKEEPER_HOME/bin目录下执行,zkServer.sh start

cd $ZOOKEEPER_HOME/bin./zkServer.sh start

返回信息为:

JMX enabled by defaultUsing config: /home/spark/zookeeper/zookeeper-3.4.6/bin/../conf/zoo.cfgStarting zookeeper ... STARTED

启动其他节点的zookeeper.通过如下指令可以查看当前的zookeeper的状态

./zkServer.sh stats

我的集群node1为leader,master及node2为follower.