ORA-1400 encountered when generating server alert SMG-4121 after downgrade from 12c to 11.2.0.4 (Doc ID 2169006.1)

Last updated on JULY 06, 2017

Applies to:

Oracle Database - Enterprise Edition - Version 11.2.0.1 to 12.1.0.2 [Release 11.2 to 12.1]
Information in this document applies to any platform.

Symptoms

 
After the database is downgraded successfully from 12.1.0.2 to 11.2.0.4 following the instructions in Chapter "Downgrading Oracle Database to an Earlier Release" from the 12c Database Upgrade Guide, the alert.log shows the following message repeatedly:

Wed Aug 03 09:18:35 2016
ORA-1400 encountered when generating server alert SMG-4121
Wed Aug 03 09:23:35 2016
ORA-1400 encountered when generating server alert SMG-4121
Wed Aug 03 09:28:35 2016
ORA-1400 encountered when generating server alert SMG-4121
Wed Aug 03 09:33:35 2016
ORA-1400 encountered when generating server alert SMG-4121
Wed Aug 03 09:38:36 2016

 

Changes

 Downgraded the database from 12.1.0.2 to 11.2.0.4

Cause

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