ORA01102 cannot mount database in EXCLUSIVE mode
How To Check Alert Log Errors In Oracle Database - Techgoeasy. With this view, you can view not only the database, but also the error messages related to different components (rdbms, diagtool, clients, asm, tnslsnr). Alert.log file is written to the directory specified by the background_dump_dest parameter.
Recognizing severe errors in the alert log. When used interactively by issuing the “adrci” command from a system prompt, which is often the way it is used, a user can easily extract alert log detail with very simple commands such as the following: Test message in alert log 10 rows selected. To view errors in the alert log: On the dbaas monitor home page, click errors in the alerts box. Check the alert log and trace files of an instance periodically to learn whether the background processes have encountered errors. Read oracle alert log using v$diag_alert_ext. These errors are all serious in nature and require intervention by the oracle dba. For example, when the log writer process (lgwr) cannot write to a member of a log group, an error message indicating the nature of the problem is written to the lgwr trace file and the alert log. You can query errors in alert.log by sql query.
Find the error in alert log of last 15 days: As of enterprise manager 10g, grid control, version 10.2.0.5.0 (and database control for 11g databases), 11g databases no longer use the 'generic alert log' metric to raise alerts for errors logged in the database alert log. You can also choose to review the. The alert log is named alert_ sid.log and is found in the adr directory specified by the parameter diagnostic_dest in the initialization parameter file. The purpose of a database is to store and retrieve related information. You can query errors in alert.log by sql query. Such an error message means that a media or i/o. Select group#, bytes, 'online' as type from v$log union select group#, bytes, 'standby' as type from v$standby_log order by 1; A database server is a key to solving the problems of information management. For example, when the log writer process (lgwr) cannot write to a member of a log group, an error message indicating the nature of the problem is written to the lgwr trace file and the alert log. To display the last 10 lines of the alert log.
