首先我们为了之后继续搭建软件,这里没有使用docker-compose,而是通过构建四台centos,再在里面搭建我们所需要的组件
宿主机最好提供10 GB的RAM,硬盘占用大概会在40G以上
本次采用的在线安装方式,cdh为6.3.2版本,系统为centos7.4, docker节点可以为任意多个,下文将以3个docker容器为示例进行展示。此方法也可用在docker swarm上,docker容器能够互连,网络互通即可
离线安装包地址:
链接: https://pan.baidu.com/s/1vMm0yMYya2vhbEabeJMPHQ 提取码: xbrx
0. docker安装
卸载(可选)
如果之前安装过旧版本的Docker,可以使用下面命令卸载:
yum remove docker docker-client docker-client-latest docker-common docker-latest docker-latest-logrotate docker-logrotate docker-selinux docker-engine-selinux docker-engine docker-ce安装docker
首先需要大家虚拟机联网,安装yum工具
yum install -y yum-utils device-mapper-persistent-data lvm2 –skip-broken然后更新本地镜像源:
# 设置docker镜像源 yum-config-manager –add-repo https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo # 第二步 sed -i s/download.docker.com/mirrors.aliyun.com/docker-ce/g /etc/yum.repos.d/docker-ce.repo # 第三步 yum makecache fast然后输入命令:
yum install -y docker-cedocker-ce为社区免费版本。稍等片刻,docker即可安装成功。
1. 构建Centos-cdh镜像
宿主机初始化
yum install -y wget && mkdir -p /etc/yum.repos.d/repo_bak && mv /etc/yum.repos.d/*.repo /etc/yum.repos.d/repo_bak/ && wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo && wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo && yum clean all && yum makecache && yum update –y构建容器的Dockerfile文件(创建这个文件)
FROM docker.io/ansible/centos7-ansible RUN yum -y install openssh-server RUN yum -y install bind-utils RUN yum -y install which RUN yum -y install sudo在Dockerfile同级目录执行:
docker build -t centos7-cdh .生成要用的基础centos7的镜像
接着我们给镜像创建一个网桥
docker network create –subnet=172.10.0.0/16 hadoop_net && docker network ls启动容器
docker run -d –add-host cm.hadoop:172.10.0.2 –net hadoop_net –ip 172.10.0.2 -h cm.hadoop -p 10022:22 -p 7180:7180 –restart always –name cm.hadoop –privileged centos7-cdh /usr/sbin/init && docker ps参数解释:
run -d # 后台启动–add-host cm.hadoop:172.10.0.2 # 给容器分配一个固定的ip,主机名为:cm.hadoop–net hadoop_net # 将容器加入到上一步创建的网桥中-p # 端口映射–restart always # docker重启后会自动开启此容器–name cm.hadoop # 给容器起名字,在docker中可以用主机名代替ip镜像访问–privileged # 声明此容器可以定制化,例如使container内的root拥有真正的root权限等2. 容器安装ClouderaManager
2.1 初始化环境
我们进入容器,配置一些东西
docker exec -it cm.hadoop bash将root的登录密码改为root
$ su root $ passwd $ root $ root安装基础环境
yum install -y kde-l10n-Chinese telnet reinstall glibc-common vim wget ntp net-tools && yum clean all此步如果出错,请尝试容器是否可以正常联网,检查docker网桥设置
2.2 配置中文环境变量
vim ~/.bashrc ,在末尾添加
export LC_ALL=zh_CN.utf8 export LANG=zh_CN.utf8 export LANGUAGE=zh_CN.utf8执行
localedef -c -f UTF-8 -i zh_CN zh_CN.utf8 && source ~/.bashrc && echo $LANG2.3 设置NTP时间同步服务
这一步是必须要做的,因为hadoop集群如果时间不同步会出现通讯失败的情况
安装ntp
yum install ntp -y同步时间
ntpdate -u ntp1.aliyun.com修改时区
ln -sf /usr/share/zoneinfo/Asia/Shanghai /etc/localtime再创建一个定时任务,用于定时同步时间(防止虚拟机停止后时间异常)
crontab -e # 添加 0 */2 * * * /usr/sbin/ntpdate ntp1.aliyun.com启动ntp服务
systemctl start ntpd && systemctl enable ntpd && date2.4 安装mysql
使用wget安装(也可以单独部署,单独部署这里不再赘述):
mkdir -p /root/hadoop__CHD/mysql && wget -O /root/hadoop_CHD/mysql/mysql-5.7.27-1.el7.x86_64.rpm-bundle.tar https://dev.mysql.com/get/Downloads/MySQL-5.7/mysql-5.7.27-1.el7.x86_64.rpm-bundle.tar && ls /root/hadoop_CHD/mysql使用wget会非常的慢,我们可以上传给宿主机,然后通过docker命令拷贝给centos-chd
# 前提是容器的/root/hadoop_CHD/mysql目录必须事先创建。 docker cp mysql-5.7.27-1.el7.x86_64.rpm-bundle.tar {容器ID}:/root/hadoop_CHD/mysql准备MySQL JDBC驱动
mkdir -p /root/hadoop_CHD/mysql-jdbc && wget -O /root/hadoop_CHD/mysql-jdbc/mysql-connector-java-5.1.48.tar.gz https://dev.mysql.com/get/Downloads/Connector-J/mysql-connector-java-5.1.48.tar.gz && ls /root/hadoop_CHD/mysql-jdbc2.5 准备Cloudera-Manager安装包
这样下载很慢,建议用finalshell等工具直接从自己的电脑上上传到虚拟机中,直接连接宿主机的10022端口即可
mkdir -p /root/hadoop_CHD/cloudera-repos && wget -O /root/hadoop_CHD/cloudera-repos/allkeys.asc https://archive.cloudera.com/cm6/6.3.0/allkeys.asc && wget -O /root/hadoop_CHD/cloudera-repos/cloudera-manager-agent-6.3.0-1281944.el7.x86_64.rpm https://archive.cloudera.com/cm6/6.3.0/redhat7/yum/RPMS/x86_64/cloudera-manager-agent-6.3.0-1281944.el7.x86_64.rpm && wget -O /root/hadoop_CHD/cloudera-repos/cloudera-manager-daemons-6.3.0-1281944.el7.x86_64.rpm https://archive.cloudera.com/cm6/6.3.0/redhat7/yum/RPMS/x86_64/cloudera-manager-daemons-6.3.0-1281944.el7.x86_64.rpm && wget -O /root/hadoop_CHD/cloudera-repos/cloudera-manager-server-6.3.0-1281944.el7.x86_64.rpm https://archive.cloudera.com/cm6/6.3.0/redhat7/yum/RPMS/x86_64/cloudera-manager-server-6.3.0-1281944.el7.x86_64.rpm && wget -O /root/hadoop_CHD/cloudera-repos/cloudera-manager-server-db-2-6.3.0-1281944.el7.x86_64.rpm https://archive.cloudera.com/cm6/6.3.0/redhat7/yum/RPMS/x86_64/cloudera-manager-server-db-2-6.3.0-1281944.el7.x86_64.rpm && wget -O /root/hadoop_CHD/cloudera-repos/enterprise-debuginfo-6.3.0-1281944.el7.x86_64.rpm https://archive.cloudera.com/cm6/6.3.0/redhat7/yum/RPMS/x86_64/enterprise-debuginfo-6.3.0-1281944.el7.x86_64.rpm && wget -O /root/hadoop_CHD/cloudera-repos/oracle-j2sdk1.8-1.8.0+update181-1.x86_64.rpm https://archive.cloudera.com/cm6/6.3.0/redhat7/yum/RPMS/x86_64/oracle-j2sdk1.8-1.8.0+update181-1.x86_64.rpm && ll /root/hadoop_CHD/cloudera-repos准备Parcel包
mkdir -p /root/hadoop_CHD/parcel && wget -O /root/hadoop_CHD/parcel/ CDH-6.3.2-1.cdh6.3.2.p0.1605554-el7.parcel https://archive.cloudera.com/cdh6/6.3.2/parcels/CDH-6.3.2-1.cdh6.3.2.p0.1605554-el7.parcel && wget -O /root/hadoop_CHD/parcel/manifest.json https://archive.cloudera.com/cdh6/6.3.2/parcels/manifest.json && ll /root/hadoop_CHD/parcel搭建本地yum源
yum -y install httpd createrepo && systemctl start httpd && systemctl enable httpd && cd /root/hadoop_CHD/cloudera-repos/ && createrepo . && mv /root/hadoop_CHD/cloudera-repos /var/www/html/ && yum clean all && ll /var/www/html/cloudera-repos2.6 安装jdk
yum install -y java-1.8.0-openjdk-devel.x86_64查看一下:
java -versionjdk会默认安装在/usr/lib/jvm目录下:
这样安装没有配置JAVA_HOME,我们需要进一步配置,不然后面安装会报错
( cat <<EOF #set java environment JAVA_HOME=/usr/lib/jvm/jre-1.8.0-openjdk PATH=$PATH:$JAVA_HOME/bin CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar export JAVA_HOME CLASSPATH PATH EOF ) >> /etc/profile && source /etc/profile && java -version2.7 启动前准备
安装配置MySQL数据库(采用docker独立安装跳过此步)
cd /root/hadoop_CHD/mysql/ && tar -xvf mysql-5.7.27-1.el7.x86_64.rpm-bundle.tar && yum install -y libaio numactl && rpm -ivh mysql-community-common-5.7.27-1.el7.x86_64.rpm && rpm -ivh mysql-community-libs-5.7.27-1.el7.x86_64.rpm && rpm -ivh mysql-community-client-5.7.27-1.el7.x86_64.rpm && rpm -ivh mysql-community-server-5.7.27-1.el7.x86_64.rpm && rpm -ivh mysql-community-libs-compat-5.7.27-1.el7.x86_64.rpm && echo character-set-server=utf8 >> /etc/my.cnf && rm -rf /root/hadoop_CHD/mysql/ && yum clean all && rpm -qa |grep mysql建数据库表
( cat <<EOF set password for root@localhost = password(123456Aa.); grant all privileges on *.* to root@% identified by 123456Aa.; flush privileges; CREATE DATABASE scm DEFAULT CHARACTER SET utf8 DEFAULT COLLATE utf8_general_ci; CREATE DATABASE amon DEFAULT CHARACTER SET utf8 DEFAULT COLLATE utf8_general_ci; CREATE DATABASE rman DEFAULT CHARACTER SET utf8 DEFAULT COLLATE utf8_general_ci; CREATE DATABASE hue DEFAULT CHARACTER SET utf8 DEFAULT COLLATE utf8_general_ci; CREATE DATABASE metastore DEFAULT CHARACTER SET utf8 DEFAULT COLLATE utf8_general_ci; CREATE DATABASE sentry DEFAULT CHARACTER SET utf8 DEFAULT COLLATE utf8_general_ci; CREATE DATABASE nav DEFAULT CHARACTER SET utf8 DEFAULT COLLATE utf8_general_ci; CREATE DATABASE navms DEFAULT CHARACTER SET utf8 DEFAULT COLLATE utf8_general_ci; CREATE DATABASE oozie DEFAULT CHARACTER SET utf8 DEFAULT COLLATE utf8_general_ci; GRANT ALL ON scm.* TO scm@% IDENTIFIED BY 123456Aa.; GRANT ALL ON amon.* TO amon@% IDENTIFIED BY 123456Aa.; GRANT ALL ON rman.* TO rman@% IDENTIFIED BY 123456Aa.; GRANT ALL ON hue.* TO hue@% IDENTIFIED BY 123456Aa.; GRANT ALL ON metastore.* TO hive@% IDENTIFIED BY 123456Aa.; GRANT ALL ON sentry.* TO sentry@% IDENTIFIED BY 123456Aa.; GRANT ALL ON nav.* TO nav@% IDENTIFIED BY 123456Aa.; GRANT ALL ON navms.* TO navms@% IDENTIFIED BY 123456Aa.; GRANT ALL ON oozie.* TO oozie@% IDENTIFIED BY 123456Aa.; SHOW DATABASES; EOF ) >> /root/c.sql保存为:/root/c.sql
获取MySQL初始密码
systemctl start mysqld && grep password /var/log/mysqld.log | sed s/.*(…………)$/1/执行SQL脚本
mysql -u root -p输入查询出的默认密码,然后执行:
source /root/c.sql配置mysql jdbc驱动
$ mkdir -p /usr/share/java/ $ cd /root/hadoop_CHD/mysql-jdbc/ $ tar -zxvf mysql-connector-java-5.1.48.tar.gz $ cp /root/hadoop_CHD/mysql-jdbc/mysql-connector-java-5.1.48/mysql-connector-java-5.1.48-bin.jar /usr/share/java/mysql-connector-java.jar $ rm -rf /root/hadoop_CHD/mysql-jdbc/ $ ls /usr/share/java/这里有坑,就是这个驱动版本不能太高,刚开始我的是5.1.47的驱动,然后就会报错,换了5.1.6的就好了(手动上传),还有就是驱动不能带版本号
名字要为mysql-connector-java.jar
安装Cloudera Manager
( cat <<EOF [cloudera-manager] name=Cloudera Manager 6.3.0 baseurl=http://172.10.0.2/cloudera-repos/ gpgcheck=0 enabled=1 EOF ) >> /etc/yum.repos.d/cloudera-manager.repo && yum clean all && yum makecache && yum install -y cloudera-manager-daemons cloudera-manager-agent cloudera-manager-server && yum clean all && rpm -qa | grep cloudera-manager配置parcel库
cd /opt/cloudera/parcel-repo/;mv /root/hadoop_CHD/parcel/* ./ && sha1sum CDH-6.3.2-1.cdh6.3.2.p0.1605554-el7.parcel | awk { print $1 } > CDH-6.3.2-1.cdh6.3.2.p0.1605554-el7.parcel.sha && rm -rf /root/hadoop_CHD/parcel/ && chown -R cloudera-scm:cloudera-scm /opt/cloudera/parcel-repo/* && ll /opt/cloudera/parcel-repo/初始化scm库
/opt/cloudera/cm/schema/scm_prepare_database.sh mysql scm scm 123456Aa.接着上面的,如果驱动没有问题
启动cloudera-server服务
systemctl start cloudera-scm-server.service && sleep 2 && tail -f /var/log/cloudera-scm-server/cloudera-scm-server.log | grep “INFO WebServerImpl:com.cloudera.server.cmf.WebServerImpl: Started Jetty server”这里如果出错,请多看错误日志,一般为驱动未找到,或者是bean构建失败等等,如果失败不要反复重启服务,因为scm数据库里面的数据很可能会出现问题,应该删除该数据库再重新启动
到这里如果没有什么问题,你可以在你的浏览器里面看到页面,http://IP:7180/cmf/login 账号密码:admin/admin
先别急着操作,先配置两个slave结点
3. 配置CDH的worker节点
以下为worker容器的准备方式,若为多个时,重复执行以下步骤,创建多个worker节点
3.1 创建多个worker容器
创建2个work容器
Worker-1:
docker run -d –add-host cm.hadoop:172.10.0.2 –add-host cdh01.hadoop:172.10.0.3 –net hadoop_net –ip 172.10.0.3 -h cdh01.hadoop -p 20022:22 –restart always –name cdh01.hadoop –privileged centos7-cdh /usr/sbin/init && docker psWorker-2:
docker run -d –add-host cm.hadoop:172.10.0.2 –add-host cdh02.hadoop:172.10.0.4 –net hadoop_net –ip 172.10.0.4 -h cdh02.hadoop -p 30022:22 –restart always –name cdh02.hadoop –privileged centos7-cdh /usr/sbin/init && docker ps到这里正常的话我们就有三台主机了
和之前的操作一样,先安装基本工具
上一步创建的所有容器均执行,修改root的登录密码改为root
$ su root $ passwd $ root $ root然后执行
配置中文环境
yum install -y kde-l10n-Chinese telnet reinstall glibc-common vim wget ntp net-tools && yum clean all3.2 环境配置
配置中文环境变量
( cat <<EOF export LC_ALL=zh_CN.utf8 export LANG=zh_CN.utf8 export LANGUAGE=zh_CN.utf8 EOF ) >> ~/.bashrc && localedef -c -f UTF-8 -i zh_CN zh_CN.utf8 && source ~/.bashrc && echo $LANG这一步是必须要做的,因为hadoop集群如果时间不同步会出现通讯失败的情况
安装ntp
yum install ntp -y同步时间
ntpdate -u ntp1.aliyun.com修改时区
ln -sf /usr/share/zoneinfo/Asia/Shanghai /etc/localtime再创建一个定时任务,用于定时同步时间(防止虚拟机停止后时间异常)
crontab -e# 添加0 */2 * * * /usr/sbin/ntpdate ntp1.aliyun.com启动ntp服务
systemctl start ntpd && systemctl enable ntpd && date配置MySQL JDBC
这里为了防止出错,建议配置和master结点一样的驱动,且不要带版本号
mkdir -p /usr/share/java/上传驱动即可
修改CM主机的host文件
这样我们可以很方便的使用后面的名字访问这些主机
echo “172.10.0.3 cdh01.hadoop cdh01” >> /etc/hosts echo “172.10.0.4 cdh02.hadoop cdh02” >> /etc/hosts这里我们还可以配置一下免密码登录
4. CM管理平台创建CDH集群
4.1 登陆CM管理平台
http://IP:7180/cmf/login 账号密码:admin/admin
欢迎界面:
此面一直点击继续,需要同意条款的同意条款
然后就可以来到集群安装的欢迎界面
我们来安装集群
选择继续,并给集群起一个名字
设置主机地址: 172.10.0.[2-4]
选择存储
自定义存储库:http://172.10.0.2/cloudera-repos
Jdk安装
SSH凭据,密码为容器root用户的登录密码,此处为root
安装代理
安装大数据组件
集群状态检查
集群设置
选择你要安装的组件
选择好你要安装的大数据组件,然后点继续
这里如果选择了hive之类的组件,需要在cm结点上创建一个数据库,可以用组件名命名
CREATE DATABASE scm DEFAULT CHARACTER SET utf8 DEFAULT COLLATE utf8_general_ci; CREATE DATABASE hive DEFAULT CHARACTER SET utf8 DEFAULT COLLATE utf8_general_ci; grant all privileges on scm.* to scm@localhost identified by 密码; grant all privileges on scm.* to scm@% identified by 密码; grant all privileges on hive.* to hive@localhost identified by 密码; grant all privileges on hive.* to hive@% identified by 密码; CREATE DATABASE hue DEFAULT CHARACTER SET utf8 DEFAULT COLLATE utf8_general_ci; grant all privileges on hue.* to hue@% identified by 密码; grant all privileges on hue.* to hue@localhost identified by 密码2; CREATE DATABASE rm DEFAULT CHARACTER SET utf8 DEFAULT COLLATE utf8_general_ci; grant all privileges on rm.* to rm@localhost identified by 密码; grant all privileges on rm.* to rm@% identified by 密码; flush privileges;红色表示必填的项目
Datanode-> /dfs/datanode
Namenode-> /dfs/namenode
HDFS检查点-> /dfs/checkpoint
NodeManager 本地目录-> /dfs/nodemanager
然后就等待集群构建完成!
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