Fix for ORA-03113: end-of-file on communication channel
Oracle Database Server 12c Here is how to fix ORA-03113: end-of-file on communication channel
Cause: I issued shutdown immediate command in a running database instance. The database was busy and it took ages to shut it down. I was impatient and I did kill a virtual machine server. After virtual machine restart, the database did not start any more, throwing ORA-03113 error.
[oracle@host ~]$ sqlplus / as sysdba ... ... Copyright (c) 1982, 2014, Oracle. All rights reserved. Connected to an idle instance. SQL> startup ORACLE instance started. Total System Global Area 2147483648 bytes Fixed Size 2926472 bytes Variable Size 1224738936 bytes Database Buffers 905969664 bytes Redo Buffers 13848576 bytes Database mounted. ORA-03113: end-of-file on communication channel Process ID: 4903 Session ID: 237 Serial number: 26032
Solution:
SQL> exit Disconnected from Oracle Database 12c Enterprise Edition Release 12.1.0.2.0 - 64bit Production [oracle@zeus ~]$ sqlplus / as sysdba ... ... Connected to an idle instance. SQL> startup nomount ORACLE instance started. Total System Global Area 2147483648 bytes Fixed Size 2926472 bytes Variable Size 1224738936 bytes Database Buffers 905969664 bytes Redo Buffers 13848576 bytes SQL> alter database mount; Database altered. SQL> alter database clear unarchived logfile group 1; Database altered. SQL> alter database clear unarchived logfile group 2; Database altered. SQL> alter database clear unarchived logfile group 3; Database altered. SQL> shutdown immediate ORA-01109: database not open Database dismounted. ORACLE instance shut down. SQL> startup ORACLE instance started. Total System Global Area 2147483648 bytes Fixed Size 2926472 bytes Variable Size 1224738936 bytes Database Buffers 905969664 bytes Redo Buffers 13848576 bytes Database mounted. Database opened. SQL>
Uff… Database opened!
Cheers!
