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Database report errors when Flashback Logs are deleted Manually (Doc ID 302488.1)

Last updated on JANUARY 16, 2022

Applies to:

Oracle Database Cloud Schema Service - Version N/A and later
Gen 1 Exadata Cloud at Customer (Oracle Exadata Database Cloud Machine) - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database - Enterprise Edition - Version 10.1.0.2 and later
Oracle Database Backup Service - Version N/A and later
Information in this document applies to any platform.

Symptoms

..
Database startup fails after mounting the database while opening with the following error :


SQL> startup
ORACLE instance started.

Total System Global Area 171966464 bytes
Fixed Size 787988 bytes
Variable Size 145750508 bytes
Database Buffers 25165824 bytes
Redo Buffers 262144 bytes
Database mounted.
ORA-38760: This database instance failed to turn on flashback database.



The alert log would have error as shown below:

Errors in file <udump directory>\<oracle_sid>_ora_38800.trc:
ORA-38701: Flashback database log 1 seq 1 thread 1: "<fra dir>\O1_MF_1425DVK2_.FLB"
ORA-27041: unable to open file
OSD-04002: unable to open file
O/S-Error: (OS 2) The system cannot find the file specified.

Changes

..the current flashbacklog is deleted

Cause

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