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Oracle 12c DG Standby alert error ORA-01110

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The environment is 12.2.0.1 version, Oracle data Guard repository failed to recover today, after Rman recovery found that the standby alert has been error, but the Repository Master library synchronization consistent, data consistent.
2018-07-05t23:42:22.184048+08:00
Errors in FILE/U01/APP/ORACLE/DIAG/RDBMS/DWJRSTDYDB/DWJRSTDYDB/TRACE/DWJRSTDYDB_M000_129832.TRC:
Ora-01110:data file 7: '/U01/APP/ORACLE/ORADATA/DWJRSTDYDB/USERS01.DBF '
2018-07-05t23:42:22.258112+08:00
Errors in FILE/U01/APP/ORACLE/DIAG/RDBMS/DWJRSTDYDB/DWJRSTDYDB/TRACE/DWJRSTDYDB_M000_129832.TRC:
Ora-01110:data file 8: '/U01/APP/ORACLE/ORADATA/DWJRSTDYDB/DWJRDBPDB/SYSTEM01.DBF '
2018-07-05t23:42:22.332476+08:00
Errors in FILE/U01/APP/ORACLE/DIAG/RDBMS/DWJRSTDYDB/DWJRSTDYDB/TRACE/DWJRSTDYDB_M000_129832.TRC:
Ora-01110:data file 9: '/U01/APP/ORACLE/ORADATA/DWJRSTDYDB/DWJRDBPDB/SYSAUX01.DBF '
2018-07-05t23:42:22.406769+08:00
Errors in FILE/U01/APP/ORACLE/DIAG/RDBMS/DWJRSTDYDB/DWJRSTDYDB/TRACE/DWJRSTDYDB_M000_129832.TRC:
Ora-01110:data file: '/u01/app/oracle/oradata/dwjrstdydb/dwjrdbpdb/undotbs01.dbf '
2018-07-05t23:42:22.481081+08:00
Errors in FILE/U01/APP/ORACLE/DIAG/RDBMS/DWJRSTDYDB/DWJRSTDYDB/TRACE/DWJRSTDYDB_M000_129832.TRC:
Ora-01110:data file One: '/u01/app/oracle/oradata/dwjrstdydb/dwjrdbpdb/users01.dbf '

Refer to MOS Documentation:
ORA-01110 for all Files in Standby Database (document ID 2322290.1)

Changes
New or upgraded Standby on 12.2.0.1

Cause

Unpublished Bug 24844841:phsb:cdb M000 reported ORA-1110 on ADG when A datafile was ADDED on PRIMARY

Is logged for error ORA-1110 being reported incorrectly on the Standby database alert log when a datafile change is made O n the primary.

The bug is a fixed in 19.1.

Backport requests can made for 12.1 & 12.2

Rediscovery:

=========

Function Kcidr_file_header_check_common is the file header check which cause of this issue. If you see the ' this ' in the Stack Trace and Standby opens Read only successfully then your is most likely encountering this bug .

Solution
To Solve the issue:

Apply fix of Bug 24844841. Please check the backports for your version and operating system.

If patch#24844841 is a available then, open an SR to request.

To workaround:

Restart  the standby database and managed recovery.

I would like to record that a good memory than a bad pen ~

Oracle 12c DG Standby alert error ORA-01110

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