大数据 CDH 6.2 安装

环境信息

如果是单节点的，建议将虚拟机的内存最小设置为8G，硬盘大小为100G

类别	版本	备注
CDH	6.2.0	下载网址
数据库	mysql 5.7
系统	CentOS7
jdk	1.8	cdh 修改过的
parcels		下载网址

CDH6.2.0中的软件版本信息

Component	Component Version
Apache Avro	1.8.2
Apache Flume	1.9.0
Apache Hadoop	3.0.0
Apache HBase	2.1.2
HBase Indexer	1.5
Apache Hive	2.1.1
Hue	4.3.0
Apache Impala	3.2.0
Apache Kafka	2.1.0
Kite SDK	1.0.0
Apache Kudu	1.9.0
Apache Solr	7.4.0
Apache Oozie	5.1.0
Apache Parquet	1.9.0
Parquet-format	2.3.1
Apache Pig	0.17.0
Apache Sentry	2.1.0
Apache Spark	2.4.0
Apache Sqoop	1.4.7
Apache ZooKeeper	3.4.5

基础环境

修改 HOST 文件

192.168.200.129 ifan scm bogon

关闭防火墙

# 临时关闭防火墙
systemctl stop firewalld.service 
# 开机不启动
systemctl disable firewalld.service

ssh 免登录

ssh-keygen -t rsa
ssh-copy-id localhost

关闭 SELinux

什么是 SELinux

wiki

鸟哥的Linuxi私房菜-SELinux描述

Linuxtoy

sed -i 's#SELINUX=enforcing#SELINUX=disabled#g' /etc/selinux/config
setenforce 0

时钟同步

yum install ntp
crontab -e
# 添加定时任务
* * * * * /usr/sbin/ntpdate time1.aliyun.com 2>&1

禁用透明大页面压缩

CDH 配置需要

echo never > /sys/kernel/mm/transparent_hugepage/defrag
echo never > /sys/kernel/mm/transparent_hugepage/enabled

优化交换分区

echo "vm.swappiness = 10" >> /etc/sysctl.conf
sysctl -p

安装CDH

基础包准备

从官方网站下载这些软件包

cloudera-manager-agent-6.2.0-968826.el7.x86_64.rpm
cloudera-manager-daemons-6.2.0-968826.el7.x86_64.rpm
cloudera-manager-server-6.2.0-968826.el7.x86_64.rpm
oracle-j2sdk1.8-1.8.0+update181-1.x86_64.rpm

RPM-GPG-KEY-cloudera
cloudera-manager.repo

安装 mysql

安装

创建用户和数据库

# 创建 scm 数据库 用户名和密码为 scm/scm
CREATE DATABASE scm DEFAULT CHARACTER SET utf8 DEFAULT COLLATE utf8_general_ci;
GRANT ALL ON scm.* TO 'scm'@'%' IDENTIFIED BY 'scm';
# 创建 amon 数据库 并设置用户名密码为 amon/amon
CREATE DATABASE amon DEFAULT CHARACTER SET utf8 DEFAULT COLLATE utf8_general_ci;
GRANT ALL ON amon.* TO 'amon'@'%' IDENTIFIED BY 'amon';
# 创建 rman 数据库 并设置用户名密码为 rman/rman
CREATE DATABASE rman DEFAULT CHARACTER SET utf8 DEFAULT COLLATE utf8_general_ci;
GRANT ALL ON rman.* TO 'rman'@'%' IDENTIFIED BY 'rman';

# 创建 hive 数据库 并设置用户名密码为 hive/hive
create database hive default charset utf8 collate utf8_general_ci;
create user hive@'%' identified by 'hive';
grant all privileges on hive.* to hive@'%';
# 创建 activity_monitor 数据库 并设置用户名密码为 activity_monitor
create database activity_monitor default charset utf8 collate utf8_general_ci;
create user activity_monitor@'%' identified by 'activity_monitor';
grant all privileges on activity_monitor.* to activity_monitor@'%';
# 创建 reports_manager 并设置用户名密码为 reports_manager/reports_manager
create database reports_manager default charset utf8 collate utf8_general_ci;
create user reports_manager@'%' identified by 'reports_manager';
grant all privileges on reports_manager.* to reports_manager@'%';
# 创建 oozie 数据库 并设置用户名密码为 oozie/oozie
create database oozie default charset utf8 collate utf8_general_ci;
create user oozie@'%' identified by 'oozie';
grant all privileges on oozie.* to oozie@'%';
# 创建 hue 数据库 并设置用户名密码为 hue/hue
create database hue default charset utf8 collate utf8_general_ci;
create user hue@'%' identified by 'hue';
grant all privileges on hue.* to hue@'%';
# 刷新权限
FLUSH PRIVILEGES;

配置 Cloudera Manager 仓库 (需要所有节点)

mv cloudera-manager.repo /etc/yum.repos.d/
rpm --import RPM-GPG-KEY-cloudera

安装JDK

rpm -ivh oracle-j2sdk1.8-1.8.0+update181-1.x86_64.rpm
# 添加环境变量
vim /etc/profile

export JAVA_HOME=/usr/java/jdk1.8.0_181-cloudera
export PATH=$JAVA_HOME/bin:$PATH

source /etc/profile

安装 CM Server 和 Agent

# 仅在master上安装
yum install 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
# 在所有的节点上安装
yum install cloudera-manager-daemons-6.2.0-968826.el7.x86_64.rpm cloudera-manager-agent-6.2.0-968826.el7.x86_64.rpm 

添加连接mysql的jar包

mkdir /usr/share/java/
cd /usr/share/java/
wget http://central.maven.org/maven2/mysql/mysql-connector-java/5.1.47/mysql-connector-java-5.1.47.jar
# 必须将其改名
mv mysql-connector-java-5.1.47.jar mysql-connector-java.jar

初始化信息 连接数据库

cd /opt/cloudera/cm/schema 
# mysql 和 CM Server 在同一台机器上
./scm_prepare_database.sh mysql scm scm 
# mysql 和 CM Server 不在同一台机器上
./scm_prepare_database.sh mysql -h <mysql-host-ip> --scm-host <cm-server-ip> scm scm

启动 Cloudera Manager Server 服务

# 启动服务
systemctl start cloudera-scm-server
# 监控日志信息
tail -f /var/log/cloudera-scm-server/cloudera-scm-server.log

当出现 INFO WebServerImpl:com.cloudera.server.cmf.WebServerImpl: Started Jetty server. 则启动成功

CDH 配置界面