Configuration files related to the host name in the virtual machine (configuration files that need to be modified after modifying the host name)

I. Introduction

        In order to complete the project requirements, it is very troublesome to reconfigure a new virtual machine. The fastest way is to modify the existing virtual machine so that it can be used after meeting the project requirements.

        There is no doubt that when we modify the host name, we must also modify any other configuration files that use the host name as address mapping . So what are these configuration files?

2. Process

1. Modify the host name

hostnamectl set-hostname 主机名

2.core-site.xml

Modify the core-site.xml file in the etc/hadoop/ directory of hadoop

%HADOOP_HOME%/etc/hadoop/


vi core-site.xml

3.yarn-site.xml

Modify the yarn-site.xml file in the etc/hadoop/ directory of hadoop

%HADOOP_HOME%/etc/hadoop/


vi yarn-site.xml

4.hbase-site.xml

Modify the hbase-site.xml file in the conf directory of HBase

%HBASE_HOME%/conf/


vi hbase-site.xml

5. hosts file under Windows

Add a new host name and address mapping in the hosts file under Windows (hosts needs to be opened with administrator privileges)

文件位置：
C:\Windows\System32\drivers\etc\hosts




#hosts文件末尾添加：
虚拟机ip 主机名 

6. The hosts file under the virtual machine

文件位置：
/etc/hosts




#hosts文件末尾添加：
虚拟机ip 主机名 

Summarize

After modifying the above configuration file, the virtual machine can basically be used normally in the future.