Very weird client connection problem: customer TAF can only access in standby mode
I have created service and trigger on the principal database and the service started.However if I test it on my workstation, I can not open into the fermenter at all with the ora-12514 error.
However, if I do a failover to the standby database, at this time there Eve becomes primary, I am able to connect to this service.
Or I tried to start the service on the database pending while the watch is in sleep mode, I can't connect to the service_name even relaxation for the primary database connection.
How to diagnose this problem?
Help, please. Enjoy your time.
Hello;
I would check the client side first. I think you probably have a problem minor tnsnames.
If the listener is not running, you can't get a TNS-12514 - means that you get a listener is running, but it's good?
Troubleshooting - ORA-12514
1. Enter the command-line command "lsnrctl status".
2. check the host for which the listener is listening if it is not correct, the difficulty of the LISTENER. ORA
3. check (on this host) port on which the listener is listening if it is not correct, the difficulty of the LISTENER. ORA
4. check if the listener knows of this service
Client side in the TNSNAMES file. ORA
1 make sure that the points of entry to the correct host ADDRESS (verification of strike fault).
2. check the ADDRESS of the entry points to the right port (PORT = 1521) (this would cause this error)
3. check the ADDRESS of the entry points to a known service (once again a small typo will really hurt)
If it still does not work, check the SQLNET. ORA make sure that domaine_par_defaut is not incorrect (it is a long shot)
I guess your trigger start service, begins in the affirmative and lsnrctl shows, to Client-side. Sleep works if the triggers will fire OK it. Recheck the service name vs say what tnsnames. Try to manually start the service outside the trigger and if it still doesn't work its probably isn't the trigger.
Any chance one of the entries is missing in the tnsnames file? Or has a hidden piece of white space around it for the primary is broken but the work of sleep?
I would check "The tnsnames.ora used by the customers of the Application" here:
http://uhesse.WordPress.com/2010/11/05/real-time-query-for-read-mostly-applications/
Best regards
mseberg
Published by: mseberg on December 17, 2011 09:02
Tags: Database
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