ORA-12516: TNS:listener could not find available handler with matching protocol stack
Posted: Wed 03 Oct 2007 21:49
Hello,
We are evaluating CoreLab oracle provider for use with our web services. (ASP.NET 2.0 to Oracle 10g). So, we did a stress test using ACT tool and got good results, but there were some errors.
The test created 100 concurrent connections for 2 minutes.
We averaged at about 460 requests per second, but around 5% were errors:
ORA-12516: TNS:listener could not find available handler with matching protocol stack
Here is our connection string:
User Id=usr;Password=psw;Data Source=dbname;Pooling=true
Since we are using Connection Pooling I would not expect this error.
Could you please provide any insight on how to avoid this?
Thank you,
Evgueni
We are evaluating CoreLab oracle provider for use with our web services. (ASP.NET 2.0 to Oracle 10g). So, we did a stress test using ACT tool and got good results, but there were some errors.
The test created 100 concurrent connections for 2 minutes.
We averaged at about 460 requests per second, but around 5% were errors:
ORA-12516: TNS:listener could not find available handler with matching protocol stack
Here is our connection string:
User Id=usr;Password=psw;Data Source=dbname;Pooling=true
Since we are using Connection Pooling I would not expect this error.
Could you please provide any insight on how to avoid this?
Thank you,
Evgueni