Hadoop教程

Hadoop环境配置(zookeeper环境搭建)

本文主要是介绍Hadoop环境配置(zookeeper环境搭建),对大家解决编程问题具有一定的参考价值,需要的程序猿们随着小编来一起学习吧!

注:安装之前关闭防火墙

1、关闭防火墙

(1)、防火墙状态的查看

命令:systemctl status firewalld

(2)、关闭防火墙

命令:systemctl stop firewalld

(3)、设置开机防火墙不启动

命令:systemctl disable firewalld

2、将zookeeper安装包拉到/opt/software/文件夹中

安装包版本:apache-zookeeper-3.5.7-bin.tar.gz

3、解压zookeeper安装包到/opt/module/文件夹下

命令:

cd /opt/software/
tar -zxvf 安装包名 -C  /opt/module/ 

4、在解压后的zookeeper文件下,创建log文件夹和data文件夹

命令:cd /opt/module/apache-zookeeper-3.5.7-bin/

创建命令:

mkdir data
mkdir log

 

4、 拷贝配置文件,命令:

cd /opt/module/apache-zookeeper-3.5.7-bin/conf/
cp zoo_sample.cfg zoo.cfg
在此路径下,将zoo_sample.cfg文件拷贝一份并重命名为zoo.cfg

5、进行配置文件更改,命令:

vi zoo.cfg
在页面中添加如下内容

# 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=/opt/module/apache-zookeeper-3.5.7-bin/data
dataLogDir=/opt/module/apache-zookeeper-3.5.7-bin/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.0=192.168.1.100:2888:3888
server.1=192.168.1.101:2888:3888
server.2=192.168.1.102:2888:3888

6、创建服务器myid

命令:

cd /opt/module/apache-zookeeper-3.5.7-bin/data/
 
touch myid

7、集群拷贝

命令:

scp -r /opt/module/apache-zookeeper-3.5.7-bin root@hadoop101:/opt/module/apache-zookeeper-3.5.7-bin
 
将Hadoop100/opt/module/apache-zookeeper-3.5.7-bin里面的文件拷贝到Hadoop101/opt/module/apache-zookeeper-3.5.7-bin里面
 
scp -r /opt/module/apache-zookeeper-3.5.7-bin root@hadoop102:/opt/module/apache-zookeeper-3.5.7-bin
 
将Hadoop100/opt/module/apache-zookeeper-3.5.7-bin里面的文件拷贝到Hadoop102/opt/module/apache-zookeeper-3.5.7-bin里面 

8、集群myid更改

进入每个节点进行更改:

命令:cd /opt/module/apache-zookeeper-3.5.7-bin/data/

Hadoop100的myid,改成0

命令:touch myid

Hadoop101的myid,改成1

Hadoop102的myid,改成2

9、添加系统环境变量

命令:vi /etc/profile

 在页面中添加如下内容

 

export ZOOKEEPER_HOME=/opt/module/apache-zookeeper-3.5.7-bin
export PATH=$PATH:$ZOOKEEPER_HOME/bin

10、zookeeper集群启动,每个节点都要启动

命令:cd /opt/module/apache-zookeeper-3.5.7-bin

启动命令:(在100、101、102里面都要启动)

zkServer.sh start
zkServer.sh status
依次启动

 

 

 11、zkCli连接验证

命令:zkCli.sh -server hadoop100:2181

按Ctrl+Z停止运行

用jps查看出现ZooKeeperMain进程

出现QuorumPeerMain则说明zookeeper启动成功

这篇关于Hadoop环境配置(zookeeper环境搭建)的文章就介绍到这儿,希望我们推荐的文章对大家有所帮助,也希望大家多多支持为之网!