安装cm初始脚本配置数据库scm_prepare_database.sh(在主节点上)遇到的问题

遇到的问题：

ERROR com.cloudera.enterprise.dbutil.DbProvisioner  - Exception when creating/dropping database with user 'root' and jdbc url 'jdbc:mysql://localhost/?useUnicode=true&characterEncoding=UTF-8'
java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES)

解决方案：

1、配置/etc/hosts文件如下：

127.0.0.1 localhost.hadoop1
192.168.160.132  hadoop3
192.168.160.130  hadoop1
192.168.160.131  hadoop2

注意:如果执行的时候报一下错误,可能是配置host的有问题，127.0.0.1 localhost.hadoop1 这个localhost不能少

2、

需要修改mysql登录密码：

解决：
修改MySQL的root用户的密码以及打开远程连接
mysql>use mysql;
mysql>desc user;
mysql>GRANT ALL PRIVILEGES ON *.* TO root@"%" IDENTIFIED BY "hadoop";　　//为root添加远程连接的能力。
mysql>update user set Password = password('hadoop') where User='root';
mysql>select Host,User,Password  from user where User='root';
mysql>flush privileges;
mysql>exit

[root@hadoop1 ~]# /opt/cm-5.3.3/share/cmf/schema/scm_prepare_database.sh mysql cm -hlocalhost -uroot -phadoop --scm-host localhost scm scm scm
JAVA_HOME=/usr/local/jdk1.7.0_67
Verifying that we can write to /opt/cm-5.3.3/etc/cloudera-scm-server
Creating SCM configuration file in /opt/cm-5.3.3/etc/cloudera-scm-server
Executing:  /usr/local/jdk1.7.0_67/bin/java -cp /usr/share/java/mysql-connector-java.jar:/usr/share/java/oracle-connector-java.jar:/opt/cm-5.3.3/share/cmf/schema/../lib/* com.cloudera.enterprise.dbutil.DbCommandExecutor /opt/cm-5.3.3/etc/cloudera-scm-server/db.properties com.cloudera.cmf.db.
[                          main] DbCommandExecutor              INFO  Successfully connected to database.
All done, your SCM database is configured correctly!