Connection Pooling wrong/strange behaviour

Question

Hi
I have ORACLE 10g Instance with many schemas user1, user2, user3 ...
I have IIS Windows 2003 Server with .NET 3.5
I use Oracle.DataAccess, Version 2.102.2.20
Application work in one SITE and one Application Pool
Sameting going wrong with database connection pool.
I use connection strings like this
ConnectionString1=Data Source=aaa;User ID=user1;Password=123;Connection Lifetime=30
ConnectionString2=Data Source=aaa;User ID=user2;Password=123;Connection Lifetime=30
ConnectionString3=Data Source=aaa;User ID=user3;Password=123;Connection Lifetime=30
after sometime of work I have got violation of foreing key
and my surprise I request connection ConnectionString1 and work in user2
when Recycle IIS Application Pool all go ok
that case I have one time for now
Other strange case I have with one stored procedure and problem persist in time
not every day but often
procedure AppLoginBySessionId(iSessionId in out applogins.sessionid%type,
iState out number,
iUserName out bsusers.username%type,
iRoles out varchar2,
iLcid out applogins.lcid%type) as
begin
end;
When all is OK procedure return some values for iState, iUserName, iRoles, iLcid
When going wrong iState, iUserName, iRoles, iLcid are empty
When problem happen I try to modify procedure like this:
procedure AppLoginBySessionId(iSessionId in out applogins.sessionid%type,
iState out number,
iUserName out bsusers.username%type,
iRoles out varchar2,
iLcid out applogins.lcid%type) as
begin
raise_application_error(-20001,'error ... ');
end;
and when application try execute stored procedure for my surprise
no error happend, but parameters are empty (iState, iUserName, iRoles, iLcid)
When in aplication execute OracleConnection.ClearAllPools() all go OK again
or other time I fix problem with "alter system flush shared_pool"
I try to fix problem with ConnectionString parameter Statement Cache Size=0;Statement Cache Purge=true;Min Pool Size=0,
also set database parameter session_cached_cursors=0, and change client to 11g
But problem persist time to time

Answer 1

Hi Chris,
I tried to reproduce your complaint, but was unable to. I didnt use auditting however, just a series of "select user from dual" with proxy authentication. You might want to see if you can put together a small complete testcase for this and open a sr with support.
Cheers
Greg