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Instance termination got error 27120 from SGA destruction.

Christy H.Jun 22 2017 — edited Jul 24 2017

Hello,

I investigated and found the following in alert_XE.log

Instance terminated by DBW0, pid = 46808

Errors in file /u01/app/oracle/diag/rdbms/xe/XE/trace/XE_dbw0_46808.trc:

ORA-27300: OS system dependent operation:semctl failed with status: 43

ORA-27301: OS failure message: Identifier removed

ORA-27302: failure occurred at: sskgpwrm1

ORA-27157: OS post/wait facility removed

ORA-27300: OS system dependent operation:semop failed with status: 43

ORA-27301: OS failure message: Identifier removed

ORA-27302: failure occurred at: sskgpwwait1

Thu Jun 22 09:02:40 2017

Instance termination got error 27120 from SGA destruction.

  Error cleared. Process exiting.

  1. I have 64 GB RAM with 500 SSD disk space on dedicated server.
  2. I am running Plesk and Oracle both on CentOS 6.7
  3. This error is occurred when I edit any Plesk utility and Oracle become auto shutdown
  4. I know CentOS is not recommended system for Oracle but Plesk is not supporting Oracle Linux that's why I am working on CentOS that is Plesk recommended OS.
  5. Here is my show sga result

SQL> show sga

Total System Global Area 1068937216 bytes

Fixed Size                  2233344 bytes

Variable Size             859835392 bytes

Database Buffers          201326592 bytes

Redo Buffers                5541888 bytes

How can I fix this errors?

Please advise

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Locked on Jul 22 2017
Added on Jun 22 2017
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