shutdown immediate tries to start MMON and gets ORA-01089: immediate shutdown or close in progress - no operations are permitted

From: Noveljic Nenad <>
Date: Mon, 25 May 2020 08:36:13 +0000
Message-ID: <>

Shutdown immediate resulted in "ORA-01089: immediate shutdown or close in progress", although no other process was executing shutdown:

Shutting down instance (immediate) (OS id: 10745) Stopping background process SMCO
Shutting down instance: further logons disabled 2020-05-25T06:48:45.309287+02:00
Stopping background process CJQ0
Stopping background process MMON
Stopping background process MMON
Starting background process MMON
Process MMON submission failed with error = 1089 2020-05-25T06:48:52.322416+02:00
Errors in file /u00/oracle/orabase/diag/rdbms/dbprim/DB/trace/DB_ora_9958.trc: ORA-01089: immediate shutdown or close in progress - no operations are permitted

We can see above that MMON was first stopped. Then, strangely, the MMON start was attempted. Since the database was already shutting down, MMON start got ORA-01089. This error got then propagated to SQLPlus.

The dedicated server process trace confirms this and adds a bit more information:

more /u00/oracle/orabase/diag/rdbms/dbprim/DB/trace/DB_ora_9958.trc Trace file /u00/oracle/orabase/diag/rdbms/dbprim/DB/trace/DB_ora_9958.trc Oracle Database 18c Enterprise Edition Release - Production Version

Build label:    RDBMS_18.
ORACLE_HOME:    /u00/oracle/orabase/product/
System name:    SunOS
Node name:      host
Release:        5.11
Machine:        i86pc

Instance name: DB
Redo thread mounted by this instance: 1
Oracle process number: 95
Unix process pid: 9958, image: oracle_at_host
  • 2020-05-25T06:48:33.828369+02:00
  • SESSION ID:(1998.64288) 2020-05-25T06:48:33.828447+02:00
  • CLIENT ID:() 2020-05-25T06:48:33.828480+02:00
  • SERVICE NAME:(SYS$USERS) 2020-05-25T06:48:33.828512+02:00
  • MODULE NAME:(SQL*Plus) 2020-05-25T06:48:33.828546+02:00
  • ACTION NAME:() 2020-05-25T06:48:33.828578+02:00
  • CLIENT DRIVER:(SQL*PLUS) 2020-05-25T06:48:33.828620+02:00
Stopping background process MMNL
  • 2020-05-25T06:48:51.315340+02:00 Stopping background process MMON
  • 2020-05-25T06:48:52.321784+02:00
    <error barrier> at 0x7fffbffefde0 placed ksb.c_at_8384
    ORA-01089: immediate shutdown or close in progress - no operations are permitted kebmtsde-3: Error 450 kebmts: Error 450 when transitting MMON to state [KEBMSTATEID_MMON_S2_UP_MOUNTED]

Could anybody guess the reason for MMON start in the course of the shutdown and how to prevent it?

Best regards,


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Received on Mon May 25 2020 - 10:36:13 CEST

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