一、前言。
學習大數據組件，最好的方式是直接參照官網。不過官網的教程也讓我吃了一坑，在此記錄一下。因在個人筆記本資源有限，在此安裝為單機版安裝
官網參考地址：https://docs.cloudera.com/documentation/enterprise/6/6.0/topics/install_cm_cdh.html
二、搭建。
1.1配置主機名
hostnamectl set-hostname cdh
1.2配置hosts文件
vi /etc/hosts之后進行編輯，加入本機的ip映射關系（非單機時，有多個ip時，均加進來）
192.168.159.133 cdh
1.3關閉selinux
setenforce 0
1.4關閉防火牆
systemctl stop firewalld.service
systemctl disable firewalld.service
1.5配置免密登錄
ssh-keygen (后面一路回車就行)
ssh-copy-id cdh(cdh為主機名，非單機時有多個ip時，則執行多次進行免密配置)
1.6配置時間同步（時間服務器使用已有的，在此不介紹時間服務器的搭建1）yum install nt2）vi /etc/ntp.conf加入以下內容server 0.pool.ntp.org
3）sudo systemctl start ntpd
4）sudo systemctl enable ntpd
5）ntpdate -u 0.pool.ntp.org
6）hwclock --systohc
1.7安裝JDK
1）下載jdk
2）將jdk放至/usr/java/目錄下(一定要放至此目錄下，否則Clouder-Manager啟動會失敗！！！)
3）解壓並配置JAVA_HOME與PATH環境變量
4）導入TLS
1.8安裝Mysql（采用docker安裝）
1）安裝docker
yum install docker
system enable docker
vi /etc/docker/daemons.json並加入加速鏡像地址 {"registry-mirrors": ["http://hub-mirror.c.163.com"]}
system start docker
2)安裝mysql
docker run --name mysql -e MYSQL_ROOT_PASSWORD=root -d --restart=always -p 3306:3306 mysql:5.6
3)建庫
CREATE DATABASE scm DEFAULT CHARACTER SET utf8 DEFAULT COLLATE utf8_general_ci;
GRANT ALL ON scm.* TO 'scm'@'%' IDENTIFIED BY 'scm@123';
CREATE DATABASE rman DEFAULT CHARACTER SET utf8 DEFAULT COLLATE utf8_general_ci;
GRANT ALL ON rman.* TO 'rman'@'%' IDENTIFIED BY 'rman@123';
CREATE DATABASE hue DEFAULT CHARACTER SET utf8 DEFAULT COLLATE utf8_general_ci;
GRANT ALL ON hue.* TO 'hue'@'%' IDENTIFIED BY 'hue@123';
CREATE DATABASE metastore DEFAULT CHARACTER SET utf8 DEFAULT COLLATE utf8_general_ci;
GRANT ALL ON metastore.* TO 'metastore'@'%' IDENTIFIED BY 'metastore@123';
CREATE DATABASE sentry DEFAULT CHARACTER SET utf8 DEFAULT COLLATE utf8_general_ci;
GRANT ALL ON sentry.* TO 'sentry'@'%' IDENTIFIED BY 'sentry@123';
CREATE DATABASE nav DEFAULT CHARACTER SET utf8 DEFAULT COLLATE utf8_general_ci;
GRANT ALL ON nav.* TO 'nav'@'%' IDENTIFIED BY 'nav@123';
CREATE DATABASE navms DEFAULT CHARACTER SET utf8 DEFAULT COLLATE utf8_general_ci;
GRANT ALL ON navms.* TO 'navms'@'%' IDENTIFIED BY 'navms@123';
CREATE DATABASE oozie DEFAULT CHARACTER SET utf8 DEFAULT COLLATE utf8_general_ci;
GRANT ALL ON oozie.* TO 'oozie'@'%' IDENTIFIED BY 'oozie@123';
1.9設置數據庫
格式為：/opt/cloudera/cm/schema/scm_prepare_database.sh [options] -h <hostname> <databaseType> <databaseName> <username> <password>
執行時：/opt/cloudera/cm/schema/scm_prepare_database.sh mysql -h cdh scm root root
2.0安裝Cloudera Manager
下載地址： https://archive.cloudera.com/cm6/6.0.1/redhat7/yum/RPMS/x86_64/
下載：
1.cloudera-manager-daemons-6.0.1-610811.el7.x86_64.rpm
2.cloudera-manager-server-6.0.1-610811.el7.x86_64.rpm
3.cloudera-manager-agent-6.0.1-610811.el7.x86_64.rpm
執行rpm安裝： rpm -ivh cloudera-*
導入STL：JAVA_HOME=/usr/java/${jdk名稱} /opt/cloudera/cm-agent/bin/certmanager setup --configure-services
單機版時執行：
systemctl start cloudera-scm-server
查看日志：tail -f /var/log/cloudera-scm-server/cloudera-scm-server.log
顯示如下表示服務已經正常起來：INFO WebServerImpl:com.cloudera.server.cmf.WebServerImpl: Started Jetty server.
vi /etc/cloudera-scm-agent/config.ini，修改server_host=cdh
啟動cloudera-scm-agent服務：systemctl start cloudera-scm-agent
查看cloudera-scm-agent狀態：systemctl status cloudera-scm-agent
查看cloudera-scm-agent日志：tail -f /var/log/cloudera-scm-agent/cloudera-scm-agent.log
多機版時：
在server端執行cloudera-scm-server與cloudera-scm-agent操作
在agent端只執行cloudera-scm-agent操作
2.1配置CDH
Cloudera Manager Server啟動起來以后就可以登錄Web界面進行CDH的安裝配置工作了。
在瀏覽器中輸入 http://192.168.1.101:7180，默認用戶名與密碼均為：admin
2.2之后按自己的安裝需要去安裝大數據組件即可，就不一一介紹了。