rpm -ivh jdk-6u31-linux-amd64.rpm # 竟然还指定装这个，有点莫名奇妙，我给机器自己装了jdk1.7的还配了环境变量，但这个cloudera还是说没找到，还自己下载安装，不知道是不是我没配置好呢？
rpm -ivh cloudera-manager-agent-4.1.2-1.cm412.p0.428.x86_64.rpm
rpm -ivh cloudera-manager-daemons-4.1.2-1.cm412.p0.428.x86_64.rpm
rpm -ivh bigtop-utils-0.4+359-1.cdh4.1.2.p0.34.el5.noarch.rpm
rpm -ivh bigtop-jsvc-0.4-cdh4.1.2.p0.43.el5.x86_64.rpm
rpm -ivh bigtop-tomcat-0.4-cdh4.1.2.p0.38.el5.noarch.rpm
rpm -ivh flume-ng-1.2.0-cdh4.1.2.p0.7.el5.noarch.rpm
rpm -ivh hadoop-2.0.0-cdh4.1.2.p0.27.el5.x86_64.rpm
rpm -ivh hadoop-hdfs-2.0.0-cdh4.1.2.p0.27.el5.x86_64.rpm
rpm -ivh hadoop-httpfs-2.0.0-cdh4.1.2.p0.27.el5.x86_64.rpm
rpm -ivh hadoop-yarn-2.0.0.1.cdh4.1.2.p0.27.el5.x86_64.rpm
rpm -ivh hadoop-mapreduce-2.0.0-cdh4.1.2.p0.27.el5.x86_64.rpm
rpm -ivh hadoop-0.20-mapreduce-0.20.21.cdh4.1.2.p0.24.el5.x86_64.rpm
rpm -ivh hadoop-libhdfs-2.0.0-cdh4.1.2.p0.27.el5.x86_64.rpm
rpm -ivh hadoop-client-2.0.0-cdh4.1.2.p0.27.el5.x86_64.rpm
rpm -ivh hadoop-hdfs-fuse-2.0.0-cdh4.1.2.p0.27.el5.x86_64.rpm
rpm -ivh zookeeper-3.4.31.cdh4.1.2.p0.34.el5.noarch.rpm
rpm -ivh hbase-0.92.1-cdh4.1.2.p0.24.el5.noarch.rpm
rpm -ivh hive-0.9.0-cdh4.1.2.p0.21.el5.noarch.rpm
rpm -ivh oozie-3.2.0-cdh4.1.2.p0.10.el5.noarch.rpm
rpm -ivh oozie-client-3.2.0-cdh4.1.2.p0.10.el5.noarch.rpm
rpm -ivh pig-0.10.01.cdh4.1.2.p0.24.el5.noarch.rpm
rpm -ivh hue-common-2.1.0-cdh4.1.2.p0.9.el5.x86_64.rpm
rpm -ivh hue-about-2.1.-cdh4.1.2.p0.9.el5.x86_64.rpm
rpm -ivh hue-help-2.1.0-cdh4.1.2.p0.9.el5.x86_64.rpm
rpm -ivh hue-filebrowser-2.1.0-cdh4.1.2.p0.9.el5.x86_64.rpm
rpm -ivh hue-jobbrowser-2.1.0-cdh4.1.2.p0.9.el5.x86_64.rpm
rpm -ivh hue-jobsub-2.1.0-cdh4.1.2.p0.9.el5.x86_64.rpm
rpm -ivh hue-beeswax-2.1.0-cdh4.1.2.p0.9.el5.x86_64.rpm
rpm -ivh hue-oozie-2.1.0-cdh4.1.2.p0.9.el5.x86_64.rpm
rpm -ivh hue-plugins-2.1.0-cdh4.1.2.p0.9.el5.x86_64.rpm
rpm -ivh hue-proxy-2.1.0-cdh4.1.2.p0.9.el5.x86_64.rpm
rpm -ivh hue-shell-2.1.0-cdh4.1.2.p0.9.el5.x86_64.rpm
rpm -ivh hue-useradmin-2.1.0-cdh4.1.2.p0.9.el5.x86_64.rpm
rpm -ivh sqoop-1.4.11.cdh4.1.2.p0.21.el5.noarch.rpm
6）安装过程有由于顺序问题引起某些包安装不全，请重复执行上述命令4-5次直到所有安装包提示已经安装为止
7）用cloudera-manager进行“安装”，这过程基本上就是完成配置文件和启动cloudera-scm-agent（这个重要，有可能会提示出错，出错原因稍后补充）而已，很快。
8）最后提示成功，则这台机器已经受cloudera-scm-agent管理，基本上安装配置完毕，剩下的就是根据cloudera-manager提示界面按需要完成hadoop组件、节点配置，如选择namenode，datanode等。
这个过程很简单很方便，但当然如果配置完成并启动后再修改某些节点的内容如什么什么mapreduce、什么Tracker之类，可能会出现问题再也启动不了，具体内容出现过但没深入研究，
有的问题还没法解决只能换了机器（除了hadoop安装过程依赖多，配置多，服务器本身环境也复杂。所以官方文档建议用干净的机器）。