Hadoop生态Zookeeper安装

一、安装条件前置

实验zookeeper安装在【单机hadoop】机器上，已完成安装jdk,hadoop和ssh配置环境等。

zookeeper所依赖的虚拟机和操作系统配置

环境：ubuntu14 + apache-zookeeper-3.5.6-bin.tar + jdk1.8+ssh

虚拟机：（vmware10）

二、zookeeper安装环境设置

（1）下载

下载网站

下载镜像

（2）上传到linux系统解压

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tar xvf apache-zookeeper-3.5.6-bin.tar.gz 
#放在统一的软件目录下
mv apache-zookeeper-3.5.6-bin ~/software/

（3） 新建数据目录

cd ~/software/apache-zookeeper-3.5.6-bin
#zk的数据目录
mkdir -p zkData/data
#zk的日子目录
mkdir -p zkData/logs

（4）配置zoo.cfg

cd ~/software/apache-zookeeper-3.5.6-bin/conf
cp zoo_sample.cfg zoo.cfg
vim zoo.cfg

编辑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.

# 注释掉默认dataDir
# dataDir=/tmp/zookeeper
#

# 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

#新增的配置，server.i的i是数据目录zkData/data下的myid
dataDir=/home/mk/software/apache-zookeeper-3.5.6-bin/zkData/data
dataLogDir=/home/mk/software/apache-zookeeper-3.5.6-bin/zkData/logs
server.1=hadoop01:2888:3888
server.2=hadoop02:2888:3888
server.3=hadoop03:2888:3888

（5）复制到hadoop02、hadoop03

scp -r /home/mk/software/apache-zookeeper-3.5.6-bin mk@hadoop02:/home/mk/software/
scp -r /home/mk/software/apache-zookeeper-3.5.6-bin mk@hadoop03:/home/mk/software/

（6）配置myid

hadoop01

echo '1' > ~/software/apache-zookeeper-3.5.6-bin/zkData/data/myid

hadoop02

echo '2' > ~/software/apache-zookeeper-3.5.6-bin/zkData/data/myid

hadoop03

echo '3' > ~/software/apache-zookeeper-3.5.6-bin/zkData/data/myid

三、启动Zookeeper

（1）启动

zookeeper没有集群启动需要每个机器各自启动

hadoop01、hadoop02、hadoop03都执行启动指令

~/software/apache-zookeeper-3.5.6-bin/bin/zkServer.sh  start

（2）检查启动状态

~/software/apache-zookeeper-3.5.6-bin/bin/zkServer.sh  status

hadoop01 

 

hadoop02

hadoop03

 （3）创建节点

haddoop01登录zk

~/software/apache-zookeeper-3.5.6-bin/bin/zkCli.sh 
ls /
create /test
ls /
delete /test

hadoop02登录zk

~/software/apache-zookeeper-3.5.6-bin/bin/zkCli.sh 
ls /

hadoop03登录zk

~/software/apache-zookeeper-3.5.6-bin/bin/zkCli.sh 
ls /

（4）关闭

~/software/apache-zookeeper-3.5.6-bin/binzkServer.sh  stop