How do I fix ORA 03113 end of communication channel?
Solution 3:
- Startup the instance in nomount: SQL> startup nomount.
- Open database into mount state: alter database mount;
- Clear the redo log files having issue due to power failure or unclean shutdown of database. SQL> alter database clear unarchived logfile group 1;
- Shutdown the database and open it.
What is ORA 03113?
The source of an ORA-03113 is a broken connection between Client and Server process, a blanket end-of-file on a communication channel error. When the error occurs during the process of connecting, it suggests a lost connection that is similar to a timeout.
What is OERR utility?
Oerr is an Oracle utility that extracts error messages with suggested actions from the standard Oracle message files. This utility is very useful as it can extract OS-specific errors that are not in the generic Error Messages and Codes Manual.
What is alert log in Oracle?
Alert logs contain important information about error messages and exceptions that occur during database operations. Each Oracle Database for Windows instance has one alert log; information is appended to the file each time you start the instance. All threads can write to the alert log.
How do I view alert logs?
To view alert log, first you need to find it’s location using show parameter command. To view alert log you can use tail command with options and filename. In the following output you will see the last 20 lines of the alert log, but if you want to see more number of lines (ex: 100 line) you can use 100f like that.
Where is the alert log file in Oracle?
Location of the ALERT. LOG file[edit] log will be created in a directory below the value of the DIAGNOSTIC_DEST parameter: DIAGNOSTIC_DEST/diag/rdbms/DB_NAME/ORACLE_SID/trace. If this later parameter is not set, the alert. log file is created in the ORACLE_HOME/rdbms/trace directory.
What causes ora-03113 end of file on communication channel?
ORA-03113 is a quite a common error. Let us take a deep dive into it Cause: The connection between the Client and Server process was broken. It may also happen if the external agent extproc crashes for some reason. Action: There was a communication error that requires further investigation.
What is the MOSC ID for ora-03113?
For generic troubleshooting, see MOSC Note 17613.1 titled “ORA-03113” and Troubleshooting ORA-03113 (MOSC ID 1506805.1) For example, ORA-03113 could be signaled for any of these scenarios:
What does end of file on communication channel mean?
The ORA-03113: end-of-file on communication channel error is a generic error. The ORA-03113 error when connecting suggests that the connection was established, but lost later, like a timeout. Note: Windows users report ORA-03113 errors from non-Oracle issues like Windows logs becoming full.
How to find the ora-03113 problem statement?
Use SQL_TRACE on the session to find the problem statement. The ” ORA-03113 is received when running catpatch after applying the 9.2.0.5 or 9.2.0.6 patchset”.
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