大数据平台CDH6.2.0部署

1、yum install cloudera-manager-daemons cloudera-manager-agent cloudera-manager-server

2、cd /opt/cloudera/parcel-repo

（1）将第一部分下载的CDH Parcel文件（CDH-6.2.0-1.cdh6.2.0.p0.967373-el7.parcelCDH-6.2.0-1.cdh6.2.0.p0.967373-el7.parcel.sha256和manifest.json）上传至该目录下

（2）mv CDH-6.2.0-1.cdh6.2.0.p0.967373-el7.parcel.sha256 CDH-6.2.0-1.cdh6.2.0.p0.967373-el7.parcel.sha

（3）chown -R cloudera-scm:cloudera-scm /opt/cloudera/parcel-repo/*

3、将mysql-connector-java-5.1.47-bin.jar文件上传至CM Server节点上的/usr/share/java/目录下并重命名为mysql-connector-java.jar

4、安装 mysql（安装过程略），并创建相应库

mysql>CREATE DATABASE scm DEFAULT CHARACTER SET utf8 DEFAULT COLLATE utf8_general_ci

mysql>CREATE DATABASE amon DEFAULT CHARACTER SET utf8 DEFAULT COLLATE utf8_general_ci

mysql>CREATE DATABASE rman DEFAULT CHARACTER SET utf8 DEFAULT COLLATE utf8_general_ci

mysql>CREATE DATABASE metastore DEFAULT CHARACTER SET utf8 DEFAULT COLLATE utf8_general_ci

mysql>GRANT ALL ON scm.* TO 'scm'@'%' IDENTIFIED BY 'scm'

mysql>GRANT ALL ON amon.* TO 'amon'@'%' IDENTIFIED BY 'amon'

mysql>GRANT ALL ON rman.* TO 'rman'@'%' IDENTIFIED BY 'rman'

mysql>GRANT ALL ON metastore.* TO 'hive'@'%' IDENTIFIED BY 'hive'

mysql>FLUSH PRIVILEGES

mysql数据库与CM Server是同一台主机

执行命令：/opt/cloudera/cm/schema/scm_prepare_database.sh mysql scm scm

mysql数据库与CM Server不在同一台主机上

执行命令：/opt/cloudera/cm/schema/scm_prepare_database.sh mysql -h --scm-host scm scm

5、启动cloudera-scm-server

systemctl start cloudera-scm-server

6、登录页面进行配置

ip:7180

有个连接数据库的jar包用来驱动

2.连接数据库，具体代码网上有，主要就是设置数据库类型，名字，用户名，密码之类的

3.调用连接，写入数据，

Connection con=new Connection()

String sql="insert into 表名 (列名1,列名2) values(值1,值2)"

PreparedStatement ps=con.getPerpareStatment()

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