weblogic TNS listener problem

[ravikanth reddy]

Hi,

I have configured 4 managed servers, ms1,ms2 on system1 and ms3,ms4 on system2.
Weblogic version 10.3.6,

all managed servers connecting to same database.

sporadically I am facing issue on one of the managed server or multiple managed servers with below exception. Most of the times on one/two managed servers.

ORA-12514, TNS:listener does not currently know of service requested in connect descriptor


After restarting managed server issue is resolving.

If TNS listener goes down this problem should appear on all nodes. why on only 1 node this problem is coming. All other nodes serving the requests as usual.



Thanks in advance for your reply.

[German Gonzalez-Morris]

is it the same datasource in each MS ?

[ravikanth reddy]

Thanks for the reply

It is the same data source, connecting to same database

[sudipto shekhar]

There must be some other errors as well. Can you please check the logs once again?