OCM_Session6_1_Instance Configuration

• 1. Instance Configuration

 1.1 Configure your database to record checkpoints in the alert.log file.

 1.2 Ensure all user trace files are placed in the USER_DUMP_DEST location.

实例配置：1.配置数据库记录检查点在告警日志日志中，2.确保所有用户的跟踪文件放在 USER_DUMP_DEST

• 1.1 Configure your database to record checkpoints in the alert.log file.

LOG_CHECKPOINTS_TO_ALERT lets you log your checkpoints to the alert file. Doing so is useful for determining whether checkpoints are occurring at the desired frequency.

SQL> alter system set log_checkpoints_to_alert=true;

 

System altered.

• 1.2 Ensure all user trace files are placed in the USER_DUMP_DEST location.

可能需要更改USER_DUMP_DEST位置

USER_DUMP_DEST specifies the pathname for a directory where the server will write debugging trace files on behalf of a user process.

SQL> show parameter dump

NAME                                 TYPE        VALUE

------------------------------------ ----------- ------------------------------

background_core_dump                 string      partial

background_dump_dest                 string      /u01/app/oracle/admin/PROD/bdu

                                                 mp

core_dump_dest                       string      /u01/app/oracle/admin/PROD/cdu

                                                 mp

max_dump_file_size                   string      UNLIMITED

shadow_core_dump                     string      partial

user_dump_dest                       string      /u01/app/oracle/admin/PROD/udump--所有用户的跟踪文件会放在此处。