Shulou(Shulou.com)06/03 Report--

(1) Experimental environment

L experimental medium

N CentOS-7-x86_64-Everything-1708.iso

N jdk-8u161-linux-x64.rpm

N cloudera-manager-centos7-cm5.12.1_x86_64.tar.gz

N CDH-5.12.1-1.cdh6.12.1.p0.3-el7.parcel

N CDH-5.12.1-1.cdh6.12.1.p0.3-el7.parcel.sha1

N manifest.json

L prepare three CentOS virtual machines, three nodes: one Cloudera Manager node, two Agent nodes

The installation is as follows:

N CDH71:Server GUI 、 Development Tools 、 MariaDB

N CDH72 、 CDH73:Server GUI 、 Development Tools

(2) install and configure CentOS (each machine)

Note that the following two options are selected

L Server With GUI

L Development Tools

L MariaDB Server (that is, MySQL database): note that it is only installed on cdh71

L turn off the firewall

Systemctl stop firewalld.service

Systemctl disable firewalld.service

L configure hostname: edit / etc/hosts file

L configure password-free login

L configure ntp service

Create directory: mkdir / root/cdroom/

* Mount CD: mount / dev/cdrom / root/cdroom/

Delete all original repo files

Create the source file of yum: vi / etc/yum.repos.d/my.repo

[centos-yum]

Baseurl= file:///root/cdroom

Enabled=1

Gpgcheck=0

Open the NTP service

Yum install ntp

Systemctl is-enabled ntpd

Systemctl enable ntpd

Systemctl start ntpd

L yum-y install psmisc-> install the pstree command

(3) install JDK (per machine)

Be careful, this step is not the same as before!

L uninstall the original Java environment of the system

Step 1: view the installation packages for all current Java environments using the following command

Rpm-qa | grep java

Step 2: remove all Java installation packages using the following command

Rpm-e-- nodeps package name

L install the new JDK environment

Upload jdk-8u161-linux-x64.rpm to the / opt directory

Install JDK:rpm-ivh jdk-8u161-linux-x64.rpm

Z. execute the following command to set the environment variable:

Echo "JAVA_HOME=/usr/java/latest/" > > / etc/environment

L verify the JDK environment

(IV) configure MariaDB (on cdh71)

L start MariaDB

Systemctl start mariadb

Systemctl enable mariadb (Boot self-boot)

L configure MariaDB

Mysql_secure_installation

# the first step is to set the password, which will prompt you to enter the password first

Enter current password for root (enter for none):

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