AW: JDBC and MTS

Hi Mladen

We started evaluating MTS and JDBC Thin Driver (newest version for JDK 1.4, running on Win2k against a test db on win2k, test db is oracle 9.2.0.3.0). I never used SRVR=DEDICATED. I have a dispatcher running on port 5000 and a listener on port 1521.
The only thing I do to direct the connection to either use MTS or dedicated server is setting the port it connects to to either 1521 or 5000. That works just fine.

Stefan

-----Ursprüngliche Nachricht-----
Von: Mladen Gogala [mailto:[EMAIL PROTECTED] Gesendet: Dienstag, 17. Juni 2003 14:25
An: Multiple recipients of list ORACLE-L Betreff: Re: JDBC and MTS

OK. Let me get some things straight:
a) I'm not a developer. I'm one of those vile creatures called DBAs.

    I don't program. I troubleshoot other people's programs. Other people     program, I nag. When developers start writing bug-free software which

uses the database in the most optimal way, my job is gone. b) The whole problem is that even after specifying SRVR=DEDICATED in the

    connect string, the darned thing still connects as an MTS connection. c) What was the issue that you faced? That was my original question.

On 2003.06.17 07:09, Regis Biassala wrote:
> Richard is right...If ur Java application uses it own connection
> pooling...then do not use MTS...it slows down connections and more...We
> faced the same issue here....
>
> Our configuration allows DBA to choose weather connection pooling should
> handled by the app or the database...
> Use dedicated servers if there's noway you can disable the application
> connection pooling...
>
>
> Regis
>
> -----Original Message-----
> Sent: Tuesday, June 17, 2003 6:05 AM
> To: Multiple recipients of list ORACLE-L
>
>
> I used to seen problems with JDBC Thin with MTS on Linux and switching to
> a dedicated connection seemed to fix the problem. But JDBC Thin and MTS
> worked fine on my Solaris box. Not sure with HP-UX. Is the Java
> application
> running on an Application Server?
>
> Richard Ji
>
> -----Original Message-----
> Sent: Monday, June 16, 2003 11:25 PM
> To: Multiple recipients of list ORACLE-L
>
>
> I'm not a Java expert so please forgive me my ignorance. JDBC application
> is facing very strange performance problems during connect. Every now and
> then
> everything appears to be hung and then, 10 minutes later, users proceed
> normally but with the elevated blood pressure and serious lack of
patience.
> I was told that JDBC has it's own connection pooling mechanism and that it
> will start it's own dedicated server connection. It seems though that the
> string "SRVR=DEDICATED" has been ignored and that users are acquiring a
> shared
> server connection.
> Does anybody in this group have any experience with JDBC and MTS? Version
is
> 8.1.7.1, 64 bit on HP-UX 11 with OPS. Dispatchers are cross-registered
with
> listeners on all 4 nodes for load balancing purposes. I found surprisingly
> little material on the Metalink. No network collisions, no retransmits, no
> timeouts can be seen from netstat -i and netstat -s. The NIC is 1GB
Ethernet
> and I would be very surprised if approximately 100 users could kill it
with
> a
> JDBC application. They could use DBA as a human sacrifice, though.
>
>
>
> --
> Mladen Gogala
> Oracle DBA
> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.net
> --
> Author: Mladen Gogala
> INET: [EMAIL PROTECTED]
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> Author: Regis Biassala
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-- 
Mladen Gogala
Oracle DBA
-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.net
-- 
Author: Mladen Gogala
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Author: Stefan Jahnke
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