On the primary database's alert<SID>.log you will see the following messages:
Errors in file /oracle/<SID>/saptrace/background/<sid>_arcn_<pid>.trc:
ORA-12154: TNS:could not resolve the connect identifier specified
PING[ARC7]: Heartbeat failed to connect to standby '<STDBYSID>'. Error is
Error 12154 received logging on to the standby
You TNSPING successfully with ora<sid> from the primary server to the standby database.
- Oracle database release independent
- Data Guard
- UNIX or Linux release independent
oracle, dataguard, data guard, tns, ORA-12154, TNS-12154, standby, connectivity, connection, TNS_ADMIN, failed, resolve, tns-03505 , KBA , BC-DB-ORA , Oracle , Problem
About this pageThis is a preview of a SAP Knowledge Base Article. Click more to access the full version on SAP ONE Support launchpad (Login required).
Search for additional results
Visit SAP Support Portal's SAP Notes and KBA Search.