操作系统：

$uname -a
Linux server2 3.10.0-327.el7.x86_64 #1 SMP Thu Nov 19 22:10:57 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
$cat /etc/redhat-release
CentOS Linux release 7.2.1511 (Core)

关闭防火墙：

systemctl stop  firewalld.service

安装 MySQL 不做阐述。我安装的 mysql 5.7，需支持远程登录。

使用如下语句创建数据库：

create database hive DEFAULT CHARSET utf8 COLLATE utf8_general_ci;
create database amon DEFAULT CHARSET utf8 COLLATE utf8_general_ci;
create database oozie DEFAULT CHARSET utf8 COLLATE utf8_general_ci;
create database hue DEFAULT CHARSET utf8 COLLATE utf8_general_ci;
flush privileges;

添加 cloudera cm 用户：

useradd -r -d /opt/cloudera-manager/cm-5.15.2/run/cloudera-scm-server -M -c "Cloudera SCM User" cloudera-scm
id cloudera-scm

创建 cdh 软件仓库目录：

mkdir -p /opt/cloudera/parcel-repo
chown cloudera-scm:cloudera-scm /opt/cloudera/parcel-repo
mkdir -p /opt/cloudera/parcels
chown cloudera-scm:cloudera-scm /opt/cloudera/parcels

初始化 cloudera-manager：

/opt/cloudera-manager/cm-5.15.2/share/cmf/schema/scm_prepare_database.sh  mysql cm -h 192.168.30.217 root 123456 --verbose

配置 cloudera-scm-server

cp /opt/cloudera-manager/cm-5.15.2/etc/init.d/cloudera-scm-server /etc/init.d/cloudera-scm-server
vim /etc/init.d/cloudera-scm-server

#找到CMF_DEFAULTS=${CMF_DEFAULTS:-/etc/default}
#修改为

CMF_DEFAULTS="/opt/cloudera-manager/cm-5.15.2/etc/default"

启动 cloudera-scm-server

/etc/init.d/cloudera-scm-server start

初始化 cloudera-agent：

修改 agent config 中的 server_host 参数，配置为 cloudera-scm-server IP 或者 hostname:

vim /opt/cloudera-manager/cm-5.15.2/etc/cloudera-scm-agent/config.ini
server_host=server2

配置启动脚本：

mkdir /opt/cloudera-manager/cm-5.15.2/run/cloudera-scm-agent
cp /opt/cloudera-manager/cm-5.15.2/etc/init.d/cloudera-scm-agent /etc/init.d/cloudera-scm-agent
chmod +x /etc/init.d/cloudera-scm-agent
vim /etc/init.d/cloudera-scm-agent
找到CMF_DEFAULTS=${CMF_DEFAULTS:-/etc/default}
修改成CMF_DEFAULTS="/opt/cloudera-manager/cm-5.15.2/etc/default"

启动 cloudera-manager

/etc/init.d/cloudera-scm-agent start

配置 CDH:

启动和重启(需先启动MySQL)：

systemctl restart cloudera-scm-server
systemctl restart cloudera-scm-agent

注意（重装需要）：sudo rm /var/lib/cloudera-scm-agent/cm_guid

安装后地址：http://192.168.30.140:7180/ admin/admin

文件系统权限问题：

sudo -u yarn  hdfs dfs -mkdir /user/yarn
mkdir: Permission denied: user=yarn, access=WRITE, inode="/user":hdfs:supergroup:drwxrwxr-x
[root@node1 data]# sudo -u hdfs  hdfs dfs -mkdir /user/yarn
[root@node1 data]# sudo -u hdfs  hdfs dfs -chown yarn:supergroup /user/yarn

安装配置信息：

# 日志地址
/var/log/${service}

# 各种服务配置数据
/var/lib/${service}

# 实际安装地址（CDH控制）
/opt/cloudera/parcels/CDH-6.3.2-1.cdh6.3.2.p0.1605554/lib

配置文件地址：
/etc/${service}