CDH6.0.1详细安装步骤

系统环境
• 操作系统：3台 CentOS 7.3 x64
• Cloudera Manager：6.0.1
• CDH: 6.0.1

VM Name	VM IP Adress	Centos_HostName	Role
Centos_wjg1	192.168.1.101	hadoop01	Cloudera Manager Server + Cloudera Manager Agent
Centos_wjg2	192.168.1.102	hadoop02	Cloudera Manager Agent
Centos_wjg6	192.168.1.106	hadoop06	Cloudera Manager Agent

一、配置网络环境

编辑/etc/sysconfig/network-scripts/ifcfg-eth0配置文件，修改其中以下红色颜色标示的项目：
vi /etc/sysconfig/network-scripts/ifcfg-eth0
TYPE=Ethernet
BOOTPROTO=static
DEFROUTE=yes
PEERDNS=yes
PEERROUTES=yes
IPV4_FAILURE_FATAL=no
IPV6INIT=yes
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6_PEERDNS=yes
IPV6_PEERROUTES=yes
IPV6_FAILURE_FATAL=no
NAME=eth0
UUID=3719cf03-5d05-454b-903f-e1e26ad34fd6
DEVICE=eth0
ONBOOT=yes
IPADDR=192.168.1.101
NETWORK=192.168.1.1
NETSTAT=255.255.255.0
GATEWAY=192.168.1.1
DNS1=222.186.160.70
DNS2=114.114.114.114
2.编辑/etc/default/grub文件，在GRUB_CMD_LINE_LINUX=""项中，插入"net.ifnames=0 biosdevname=0"（与原有项之间用空格隔开），保存退出。
3.调用命令grub2-mkconfig -o /boot/grub2/grub.cfg更新配置，然后直接reboot重启。
这样之后再用ifconfig -a命令查看时，就有eth0网卡存在了。
更改hostname
hostnamectl set-hostname hadoop01
修改hosts文件
vi /etc/hosts

192.168.1.101 hadoop01
192.168.1.102 hadoop02
192.168.1.106 hadoop06

关闭防火墙
sed -i ‘s/SELINUX=enforcing/SELINUX=disabled/g’ /etc/selinux/config
setenforce 0
systemctl stop firewalld.service
systemctl disable firewalld.service
配置免密登录：
在每台主机上生成rsa公钥和私钥
ssh-keygen -t rsa
cd .ssh
cat id_rsa.pub >> authorized_keys
登录其他主机，将其他主机的公钥文件内容都拷贝到hadoop01主机上的authorized_keys文件中，命令如下：
[root@hadoop06 .ssh]# ssh-copy-id -i hadoop01
/usr/bin/ssh-copy-id: INFO: attempting to log in with the new key(s), to filter out any that are already installed
/usr/bin/ssh-copy-id: INFO: 1 key(s) remain to be installed — if you are prompted now it is to install the new keys
wjg@hadoop01’s password:

Number of key(s) added: 1

Now try logging into the machine, with: "ssh ‘hadoop01’"
and check to make sure that only the key(s) you wanted were added.
在每台主机上重复以上步骤，使任意两台主机间都能相互连通。

至此，免密码登录已经设定完成。

更改系统时间：
进入home目录，修改.bash_profile
#setup time region
TZ=’Asia/Shanghai’
export TZ
或者: tzselect

将当前时间和日期写入BIOS，避免重启后失效
hwclock –w

配置NTP同步各台服务器的时间
9.1主节点配置

在配置之前，先使用ntpdate手动同步一下时间，免得本机与对时中心时间差距太大，使得ntpd不能正常同步。这里选用65.55.56.206作为对时中心,ntpdate -u ntp1.aliyun.com
vi /etc/ntp.conf
#Hosts on local network are less restricted.
取消下面一行的注释，并将其中IP和掩码修改为真实环境IP和掩码，此行配置为允许ntp客户端连接的配置
restrict 192.168.1.0 mask 255.255.255.0 nomodify notrap
找到server 0.centos.pool.ntp.org iburst，并将所有server配置进行注释
添加下面两行内容
server 127.127.1.0 # local clock
fudge 127.127.1.0 stratum 10

启动NTP服务
设置后，重启ntpd服务，用ntpstat来检查效果【大概几秒钟就可以看到效果】
#systemctl restart ntpd
#ntpstat

vi /etc/sysconfig/ntpdate
#Set to ‘yes’ to sync hw clock after successful ntpdate
SYNC_HWCLOCK=yes

9.2 Agent节点配置
修改/etc/ntp.conf
对该文件进行以下内容的修改：
1、注释所有restrict和server配置
2、添加下面注释，需要修改以下的IP为NTP服务器的IP（在本案例中就是server主机的IP）
server 192.168.1.100

将所有主机的ntp服务设置为开机自动启动
chkconfig ntpd on
systemctl enable ntpd.service

二、配置163 yum源
1）下载repo文件
cd /etc/yum.repos.d/
wget http://mirrors.163.com/.help/CentOS7-Base-163.repo

2）备份并替换系统的repo文件
mv CentOS-Base.repo CentOS-Base.repo.bak
cp CentOS7-Base-163.repo CentOS-Base.repo

3）执行yum源更新命令
yum clean all
yum makecache
yum update

yum install chkconfig python bind-utils psmisc libxslt zlib sqlite cyrus-sasl-plain cyrus-sasl-gssapi fuse fuse-libs redhat-lsb –y

yum install httpd mod_ssl openssl-devel python-psycopg2 –y
yum install MySQL-python
yum install perl
yum install autoconf

三、安装MySQL:

查看并卸载CentOS系统自带的MySQL和Mariadb
rpm -qa | grep MySQL
rpm -qa | grep mariadb

rpm -e –nodeps MySQL-python-1.2.5-1.el7.x86_64
rpm -e –nodeps mariadb-libs-5.5.60-1.el7_5.x86_64
下载并上传以下rpm包到主节点
MySQL-client-5.6.42-1.el7.x86_64.rpm
MySQL-devel-5.6.42-1.el7.x86_64.rpm
MySQL-server-5.6.42-1.el7.x86_64.rpm
在主节点上执行以下命令安装MySQL
rpm -ivh MySQL*

安装完成后启动MySQL:
service mysql start
systemctl start mysql.service

修改MySQL的配置文件
vi /etc/my.cnf
[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
transaction-isolation = READ-COMMITTED
#Disabling symbolic-links is recommended to prevent assorted security risks;
#to do so, uncomment this line:
symbolic-links = 0
key_buffer_size = 32M
max_allowed_packet = 32M
thread_stack = 256K
thread_cache_size = 64
query_cache_limit = 8M
query_cache_size = 64M
query_cache_type = 1
max_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=1
binlog_format = mixed
read_buffer_size = 2M
read_rnd_buffer_size = 16M
sort_buffer_size = 8M
join_buffer_size = 8M
#InnoDB settings
innodb_file_per_table = 1
innodb_flush_log_at_trx_commit = 2
innodb_log_buffer_size = 64M
innodb_buffer_pool_size = 4G
innodb_thread_concurrency = 8
innodb_flush_method = O_DIRECT
innodb_log_file_size = 512M
[mysqld_safe]
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid
sql_mode=STRICT_ALL_TABLES

获取系统初始密码：
[root@hadoop01 wjg]# cat /root/.mysql_secret
#The random password set for the root user at Tue Dec 18 20:37:59 2018 (local time): pP4xR06U9nPyWrhA

登录MySQL:
[root@hadoop01 wjg]# mysql -uroot -ppP4xR06U9nPyWrhA
Warning: Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor. Commands end with ; or /g.
Your MySQL connection id is 2
Server version: 5.6.42

SET PASSWORD FOR ‘root’@’localhost’ = PASSWORD(‘xxxxxxx’)

grant all on . to root@"%" identified by " xxxxxxx "

设置MySQL开机自启动
systemctl enable mysql.service
初始化MySQL
/usr/bin/mysql_secure_installation

下载mysql-connector-java-5.1.46.tar.gz并解压
在解压目录下找到mysql-connector-java.jar, 复制到所有主机的/usr/share/java目录下
cd mysql-connector-java-5.1.46
cp mysql-connector-java-5.1.46.jar /usr/share/java/mysql-connector-java.jar

[root@hadoop01 usr]# ls -l /usr/share/java/mysql-connector-java.jar
-rw-r–r– 1 root root 1004838 Dec 19 20:45 /usr/share/java/mysql-connector-java.jar

下载Oracle JDK包oracle-j2sdk1.8-1.8.0+update141-1.x86_64.rpm上传到所有主机并安装
下载地址：https://archive.cloudera.com/cm6/6.0.1/redhat7/yum/RPMS/x86_64/
rpm -ivh oracle-j2sdk1.8-1.8.0+update141-1.x86_64.rpm

Creating Databases for Cloudera Software
需要建的库有
scm、amon、rman、hue、metastore、sentry、nav、navms、oozie
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’;

CDH6.0.1详细安装步骤

初始化cloudera manager数据库
/opt/cloudera/cm/schema/scm_prepare_database.sh mysql scm scm

四、下载并安装Cloudera Manager
https://archive.cloudera.com/cm6/6.0.1/redhat7/yum/RPMS/x86_64/

cloudera-manager-daemons-6.0.1-610811.el7.x86_64.rpm
cloudera-manager-server-6.0.1-610811.el7.x86_64.rpm
cloudera-manager-agent-6.0.1-610811.el7.x86_64.rpm

在主节点hadoop01服务器上安装1,2,3；
在Agent服务器上安装1,3；

在主节点hadoop01上执行：
systemctl start cloudera-scm-server
systemctl restart cloudera-scm-server

查看日志：
tail -f /var/log/cloudera-scm-server/cloudera-scm-server.log
显示如下表示服务已经正常起来
INFO WebServerImpl:com.cloudera.server.cmf.WebServerImpl: Started Jetty server.
CDH6.0.1详细安装步骤
Cloudera Manager将自动下载文件到/opt/cloudera/parcel-repo目录下
CDH-6.0.1-1.cdh7.0.1.p0.590678-el7.parcel
CDH-6.0.1-1.cdh7.0.1.p0.590678-el7.parcel.sha
CDH-6.0.1-1.cdh7.0.1.p0.590678-el7.parcel.torrent
manifest.json

在所有Agent节点hadoop01, hadoop02, hadoop06上执行：

配置Agent的Server指向
vi /etc/cloudera-scm-agent/config.ini
[General]
#Hostname of the CM server.
server_host=hadoop01

[Security]
#Use TLS and certificate validation when connecting to the CM server.
use_tls=1

启动cloudera-scm-agent服务：
systemctl status cloudera-scm-agent
systemctl start cloudera-scm-agent
systemctl restart cloudera-scm-agent

Agent Log文件位置：/var/log/cloudera-scm-agent
cloudera-scm-agent.log

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

登录Cloudera Manager管理界面

http://192.168.1.101:7180

用户名和密码都是admin
CDH6.0.1详细安装步骤

Cloudera 安装Parcel提示主机运行状况不良
解决方法
删除agent目录下面的cm_guid文件，并重启失败节点的agent服务。
[root@hadoop06 ~]# cd /var/lib/cloudera-scm-agent/
[root@hadoop06 cloudera-scm-agent]# ll
total 32
-rw——- 1 root root 2 Dec 28 14:27 active_parcels.json
drwxr-xr-x 2 cloudera-scm cloudera-scm 4096 Dec 28 23:01 agent-cert
-rw-r–r– 1 root root 36 Dec 28 14:25 cm_guid
-rw——- 1 root root 13813 Dec 29 07:10 response.avro
-rw-r–r– 1 root root 36 Dec 28 14:25 uuid
[root@hadoop06 cloudera-scm-agent]# rm -rf cm_guid
[root@hadoop06 cloudera-scm-agent]# systemctl restart cloudera-scm-agent

CDH6.0.1详细安装步骤
在所有节点上删除cm_guid以后，cloudera manager会自动继续进行安装。

稍微等一段时间后就会看到parcel已经安装到所有主机上并全部激活。

点击继续就会进入检查主机正确性的界面

第1个警告：Cloudera 建议将 /proc/sys/vm/swappiness 设置为最大值 10。当前设置为 30。使用 sysctl 命令在运行时更改该设置并编辑 /etc/sysctl.conf，以在重启后保存该设置。您可以继续进行安装，但 Cloudera Manager 可能会报告您的主机由于交换而运行状况不良。以下主机将受到影响：
查看详细信息
hadoop[01-02, 06]
解决办法：
临时调整： sysctl vm.swappiness=10
永久调整： vi /etc/sysctl.conf
增加下面一行
vm.swappiness=10

CDH6.0.1详细安装步骤
第2个警告：已启用透明大页面压缩，可能会导致重大性能问题。请运行“echo never > /sys/kernel/mm/transparent_hugepage/defrag”和“echo never > /sys/kernel/mm/transparent_hugepage/enabled”以禁用此设置，然后将同一命令添加到 /etc/rc.local 等初始化脚本中，以便在系统重启时予以设置。以下主机将受到影响:
查看详细信息
hadoop[01-02, 06]
解决办法：
echo never > /sys/kernel/mm/transparent_hugepage/defrag
echo never > /sys/kernel/mm/transparent_hugepage/enabled
修改/etc/rc.local将上面两行添加进去
vi /etc/rc.local
echo never > /sys/kernel/mm/transparent_hugepage/defrag
echo never > /sys/kernel/mm/transparent_hugepage/enabled

第3个警告：psycopg2版本太低的处理
安装pip
yum -y install epel-release
yum -y install python-pip
pip install –upgrade pip
yum install postgresql-devel

安装psycopg2
下载psycopg2-2.7.6.1.tar.gz并解压
[root@hadoop01 psycopg2-2.7.6.1]# python setup.py build
[root@hadoop01 psycopg2-2.7.6.1]# python setup.py install

重新运行检查主机，所有项目检查通过
CDH6.0.1详细安装步骤
点击继续进入选择安装产品界面

选择所有服务然后点击继续，进入主机角色分配界面

点击按主机查看对主机分配的角色会看得更清楚一些

点击继续进入数据库设置界面，填写先前创建的数据库名称、用户名和密码
CDH6.0.1详细安装步骤
点击继续进入审核更改界面

点击继续开始进行安装

安装完成后点击继续，进入Summary界面