ORA-12154 on PRnn Process at Standby Database
(Doc ID 2759156.1)
Last updated on APRIL 17, 2023
Applies to:
Oracle Database - Enterprise Edition - Version 12.2.0.1 and laterInformation in this document applies to any platform.
Symptoms
After starting Redo Apply on Standby Database of Data Guard configuration, PRnn process continuously returns ORA-12154 error.
< alert.log on Standby Database >
2020-10-05T22:52:39.399185+09:00
Completed: alter database recover managed standby database disconnect
2020-10-05T23:17:16.218006+09:00
PR00 (PID:101178): Error 12154 received logging on to the standby
PR00 (PID:101178): FAL: Error 12154 connecting to <DB1>,<DB2> for fetching gap sequence
2020-10-05T23:17:16.218248+09:00
ORA-12154: TNS:could not resolve the connect identifier specified
2020-10-05T22:52:39.399185+09:00
Completed: alter database recover managed standby database disconnect
2020-10-05T23:17:16.218006+09:00
PR00 (PID:101178): Error 12154 received logging on to the standby
PR00 (PID:101178): FAL: Error 12154 connecting to <DB1>,<DB2> for fetching gap sequence
2020-10-05T23:17:16.218248+09:00
ORA-12154: TNS:could not resolve the connect identifier specified
Changes
Setting multiple service names in FAL_SERVER prameter on Standby Database incorrectly.
< example of hitting this case >
fal_server = '<service name of DB1>,<service name of DB2>'
fal_server = '<service name of DB1>,<service name of DB2>'
Cause
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In this Document
Symptoms |
Changes |
Cause |
Solution |