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EM 13c: Repository Database Alert log Getting Filled With "ORA-01555 Caused By SQL Statement Below (SQL ID: 4atpmpqmu7dzu, SCN: 0x073a.48c7968c)" (Doc ID 2730482.1)

Last updated on JANUARY 17, 2023

Applies to:

Enterprise Manager Base Platform - Version and later
Information in this document applies to any platform.


13c Enterprise Manager Cloud Control configured with as a repository database.
Alert log of Repository database is getting filled with below error:

Tue Nov 17 09:16:36 2020
ORA-01555 caused by SQL statement below (SQL ID: 4atpmpqmu7dzu, SCN: 0x073a.48e28f7f):
Tue Nov 17 09:16:36 2020
BEGIN EM_NOTIF_PKG.DEQUEUE(:1 , :2 , :3 , :4 , :5 , :6 ); END;
Tue Nov 17 11:16:36 2020
ORA-01555 caused by SQL statement below (SQL ID: 4atpmpqmu7dzu, SCN: 0x073a.48e45f60):
Tue Nov 17 11:16:36 2020
BEGIN EM_NOTIF_PKG.DEQUEUE(:1 , :2 , :3 , :4 , :5 , :6 ); END;

Current configuration of UNDO:

SQL> show parameter undo

NAME                                         TYPE        VALUE
------------------------------------ ----------- ------------------------------
temp_undo_enabled                    boolean    FALSE
undo_management                     string       AUTO
undo_retention                           integer     900
undo_tablespace                         string       UNDOTBS1

Collected UNDO details with the help of below document:
Script - Check Current Undo Configuration and Advise Recommended Setup <Note ID 1579035.1>

Retention Recommendation Shows the below:
The best possible retention with current configuration is : 1111035 Seconds
The longest running query ran for : 1909 Seconds
The undo retention required to avoid errors is : 1909 Seconds
PL/SQL procedure successfully completed.





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