cm安装前，创建元数据库和创建相应的用户，放java操作mysql的jar包

cdh001节点上操作

# 以下的密码太简单了，所以临时设置下密码规则
set global validate_password_policy=0;
set global validate_password_mixed_case_count=0;
set global validate_password_number_count=3;
set global validate_password_special_char_count=0;
set global validate_password_length=3;
# 创建数据库cmf 和 amon
create database cmf DEFAULT CHARACTER SET utf8;
create database amon DEFAULT CHARACTER SET utf8;
# 授权cmf用户拥有cmf数据库的所有权限
# 授权amon用户拥有amon数据库的所有权限
grant all on cmf.* TO 'cmf'@'%' IDENTIFIED BY 'cmf%123';
grant all on amon.* TO 'amon'@'%' IDENTIFIED BY 'amon%123';
# 刷新系统权限表
flush privileges;

每个节点都要操作
必须为 /usr/share/java/ 目录，文件名必须为 mysql-connector-java.jar
mkdir -p /usr/share/java/
cp mysql-connector-java-5.1.47.jar /usr/share/java/mysql-connector-java.jar