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Oracle shuts down with "Instance terminated by PMON"

  • Article Type: General
  • Product: Aleph
  • Product Version: 20

Problem Symptoms:
Oracle shuts down. The Oracle Alert Log shows "DBWR process terminated with error" and "Instance terminated by PMON". (See Additional information below for complete log entry text....)

Cause:
Machine running out of memory, killing Oracle.

Resolution:
Upgrading the machine from:

4 CPU
16G RAM
8G SWAP

to:

8 CPU
32G RAM
32G SWAP

corrected the problem.

Additional Information

Complete Alert Log entry:

Errors in file /exlibris/app/oracle/diag/rdbms/aleph20/aleph20/trace/aleph20_pmon_27755.trc:
ORA-00471: DBWR process terminated with error
Tue Jul 30 22:12:09 2013
Errors in file /exlibris/app/oracle/diag/rdbms/aleph20/aleph20/trace/aleph20_j003_32194.trc:
ORA-00471: DBWR process terminated with error
PMON (ospid: 27755): terminating the instance due to error 471
Instance terminated by PMON, pid = 27755
Tue Jul 30 23:32:21 2013
Starting ORACLE instance (normal)
<etc.>

For location of log, see Article 000010582 ("Where's the Oracle alert log in version 20?")


  • Article last edited: 12/5/2013