本教程为离线安装版本，在线安装太费时间了，本教程是本人根据官方文档亲自操作完成，中间踩过坑，趟过雷，现把过程记录一下。

一、准备工作

1、准备四台电脑

192.168.1.101 node1 2CPU 8G内存 50G硬盘192.168.1.102 node2 2CPU 2G内存 50G硬盘192.168.1.103 node3 2CPU 2G内存 50G硬盘192.168.1.104 mysql.node 2CPU 1G内存 50G硬盘所有电脑禁用防火墙systemctl stop firewalldsystemctl disable firewalld

2、离线文件下载

CM 6.2.0

下载地址：

CDH 6.2.0

下载地址：

JDK1.8.0_212

准备 linux JDK： jdk-8u212-linux-x64.tar.gz

二、配置hostname及hosts

1、在node1上执行以下命令

#将主机名改为node1> hostnamectl set-hostname node1# 编辑 /etc/hosts文件，增加以下行192.168.1.101 node1192.168.1.102 node2192.168.1.103 node3192.168.1.104 mysql.node

2、在node2上执行以下命令

#将主机名改为node2> hostnamectl set-hostname node2# 编辑 /etc/hosts文件，增加以下行192.168.1.101 node1192.168.1.102 node2192.168.1.103 node3192.168.1.104 mysql.node

3、在node3上执行以下命令

#将主机名改为node3> hostnamectl set-hostname node3# 编辑 /etc/hosts文件，增加以下行192.168.1.101 node1192.168.1.102 node2192.168.1.103 node3192.168.1.104 mysql.node

4、在mysql.node上执行以下命令

> hostnamectl set-hostname mysql.node# 编辑 /etc/hosts文件，增加以下行192.168.1.101 node1192.168.1.102 node2192.168.1.103 node3192.168.1.104 mysql.node

三、JDK安装

分别在 node1、node2、node3电脑上安装JDK，JDK 要求

必需是64位必需1.8及以上相同版本的JDK安装在所有的集群电脑上必需安装在 /usr/java/目录下

四、配置免密登录

1、分别在node1、node2、node3 机器上生成密钥对

# 进入用户主目录> cd ~# 生成密钥对> ssh-keygen -t rsa然后一路回车键

2、在node1上执行

# 进入.ssh> cd ~/.ssh# 把本机的公钥追加到自身的~/.ssh/authorized_keys文件里> ssh-copy-id node1# 将authorized_keys文件复制到第二台主机> scp ~/.ssh/authorized_keys node2:~/.ssh/

3、在node2上执行

> cd ~/.ssh> ssh-copy-id node2> scp ~/.ssh/authorized_keys node3:~/.ssh/

4、在node3上执行

> cd ~/.ssh> ssh-copy-id node3> scp ~/.ssh/authorized_keys mysql.node:~/.ssh/

5、在mysql.node上执行

> cd ~/.ssh> ssh-copy-id mysql.node> scp ~/.ssh/authorized_keys node1:~/.ssh/> scp ~/.ssh/authorized_keys node2:~/.ssh/> scp ~/.ssh/authorized_keys node3:~/.ssh/

6、免密码ssh配置完成

五、安装Cloudera Manager Server

1、将下载下来的cloudera-manager-daemons-6.2.0-968826.el7.x86_64.rpm、cloudera-manager-agent-6.2.0-968826.el7.x86_64.rpm、cloudera-manager-server-6.2.0-968826.el7.x86_64.rpm上传到 node1电脑/tmp目录下

2、node1上安装cloudera-manager-daemons、cloudera-manager-agent、cloudera-manager-server

> cd /tmp> yum -y localinstall cloudera-manager-daemons-6.2.0-968826.el7.x86_64.rpm> yum -y localinstall cloudera-manager-agent-6.2.0-968826.el7.x86_64.rpm> yum -y localinstall cloudera-manager-server-6.2.0-968826.el7.x86_64.rpm

3、node2、node3 上只安装cloudera-manager-daemons、cloudera-manager-agent，把这两个安装文件上传到 node2、node3 /tmp目录下

> cd /tmp> yum -y localinstall cloudera-manager-daemons-6.2.0-968826.el7.x86_64.rpm> yum -y localinstall cloudera-manager-agent-6.2.0-968826.el7.x86_64.rpm

4、将以下文件拷贝到node1 /opt/cloudera/parcel-repo 目录下，安装CDH 本地源

CDH-6.2.0-1.cdh6.2.0.p0.967373-el7.parcelmanifest.jsonCDH-6.2.0-1.cdh6.2.0.p0.967373-el7.parcel.sha1CDH-6.2.0-1.cdh6.2.0.p0.967373-el7.parcel.sha1 将此文件重命名为CDH-6.2.0-1.cdh6.2.0.p0.967373-el7.parcel.sha

5、修改node1、node2、node3电脑中 /etc/cloudera-scm-agent/config.ini文件

将文件中 server_host=localhost 改为 server_host=node1

六、安装MySQL数据库

1、在mysql.node电脑上安装Mysql

# 如果电脑中没有 wget工具> yum -y install wget> wget ; rpm -ivh mysql-community-release-el7-5.noarch.rpm> yum install mysql-server

2、按照官方的建议，将/etc/my.cnf文件内容更改为以下配置

[mysqld]datadir=/var/lib/mysqlsocket=/var/lib/mysql/mysql.socktransaction-isolation = READ-COMMITTED# Disabling symbolic-links is recommended to prevent assorted security risks;# to do so, uncomment this line:symbolic-links = 0key_buffer_size = 32Mmax_allowed_packet = 32Mthread_stack = 256Kthread_cache_size = 64query_cache_limit = 8Mquery_cache_size = 64Mquery_cache_type = 1max_connections = 550#expire_logs_days = 10#max_binlog_size = 100M#log_bin should be on a disk with enough free space.#Replace '/var/lib/mysql/mysql_binary_log' with an appropriate path for your#system and chown the specified folder to the mysql user.log_bin=/var/lib/mysql/mysql_binary_log#In later versions of MySQL, if you enable the binary log and do not set#a server_id, MySQL will not start. The server_id must be unique within#the replicating group.server_id=1binlog_format = mixedread_buffer_size = 2Mread_rnd_buffer_size = 16Msort_buffer_size = 8Mjoin_buffer_size = 8M# InnoDB settingsinnodb_file_per_table = 1innodb_flush_log_at_trx_commit = 2innodb_log_buffer_size = 64Minnodb_buffer_pool_size = 4Ginnodb_thread_concurrency = 8innodb_flush_method = O_DIRECTinnodb_log_file_size = 512M[mysqld_safe]log-error=/var/log/mysqld.logpid-file=/var/run/mysqld/mysqld.pidsql_mode=STRICT_ALL_TABLES

3、将mysql设置为开机启动

> systemctl enable mysqld

4、启动Mysql server

> systemctl start mysqld

5、运行/usr/bin/mysql_secure_installation设置MySQL root密码和其他安全相关设置。

> /usr/bin/mysql_secure_installation[...]Enter current password for root (enter for none):OK, successfully used password, moving on...[...]Set root password? [Y/n] YNew password:Re-enter new password:Remove anonymous users? [Y/n] Y[...]Disallow root login remotely? [Y/n] N[...]Remove test database and access to it [Y/n] Y[...]Reload privilege tables now? [Y/n] YAll done!

6、Mysql安装完成

7、为Cloudera 软件创建相应的数据库及用户

mysql> CREATE USER '<user>' IDENTIFIED BY '<password>';mysql> CREATE DATABASE <database> DEFAULT CHARACTER SET utf8 DEFAULT COLLATE utf8_general_ci;mysql> GRANT ALL ON <database>.* TO '<user>'@'%' IDENTIFIED BY '<password>';

注：可能Mysql会无法远程连接，如果无法连接请进行以下步骤

> mysql -uroot -p[password]mysql> show databases;mysql> use mysql;mysql> select host from user where user = 'root';mysql> update user set host='%' where user='root' and host='localhost';mysql> exit

七、Cloudera Manager Server 连接数据库

1、在node1上，提供JDBC连接驱动

这里提供的是 mysql-connector-java-5.1.46.jar，将此文件放到 node1电脑/usr/share/java/（必需这个目录）目录下，并重命名为mysql-connector-java.jar

2、Cloudera Manager Server 提供了一个脚本来配置数据库

> /opt/cloudera/cm/schema/scm_prepare_database.sh [options] <databaseType> <databaseName> <databaseUser> <password>

databaseType: [mysql | oracle | postgresql]databaseName: 数据库名databaseUser: 数据库用户名password: 数据库密码

3、如果Mysql和Cloudera Manager Server 在同一台机器上，则执行以下命令

# 此示例假定您已创建Cloudera Management Server数据库和数据库用户，同时命名为scm：> /opt/cloudera/cm/schema/scm_prepare_database.sh mysql scm scmEnter SCM password:...[main] DbCommandExecutor INFO Successfully connected to database.All done, your SCM database is configured correctly!

4、如果Mysql和Cloudera Manager Server 不在同一台机器上，则执行以下命令

# 本教程为不同机器安装，所以执行这个命令> /opt/cloudera/cm/schema/scm_prepare_database.sh mysql -h mysql.node --scm-host node1 scm scmEnter database password:...[main] DbCommandExecutor INFO Successfully connected to database.All done, your SCM database is configured correctly!

八、启动Cloudera Manager Server 和 Agent

1、启动 Cloudera Manager Server

> systemctl start cloudera-scm-server

2、执行以下命令可以查看server日志

> tail -f /var/log/cloudera-scm-server/cloudera-scm-server.log

当看到此日志条目时，Cloudera Manager管理控制台已准备就绪：

INFO WebServerImpl:com.cloudera.server.cmf.WebServerImpl: Started Jetty server.

3、分别在 node1、node2、node3 上启动agent

> systemctl start cloudera-scm-agent

4、执行以下命令查看agent日志

> tail -f /var/log/cloudera-scm-agent/cloudera-scm-agent.log

5、在浏览器中打开 ;server_host>:7180， 默认用户名、密码：admin

6、登录成功，配置集群，结束