RE: JDBC and MTS

We add:
1. Application (Java)
Using a JDBC Connection Pooling (CP)feature...

2. Database
Oracle in MTS, pooling or not pooling enabled

This was not good for us...so we kept the Java pooling side of the app and Oracle configured to run in dedicated mode.

We'got a XML policy file which disables JDBC connection pooling for our application and gives the DBA a choice to configure a MTS... So in our case we two scenarios:

1. DB(MTS) and app(without CP) this is OK
2. DB(dedicated) and app(with CP)

Regis

-----Original Message-----
Sent: Tuesday, June 17, 2003 1:25 PM
To: Multiple recipients of list ORACLE-L

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
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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
  INET: [EMAIL PROTECTED]

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To REMOVE yourself from this mailing list, send an E-Mail message
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also send the HELP command for other information (like subscribing).
*********************************************************************
This electronic transmission is strictly confidential and intended solely
for the addressee. It may contain information which is covered by legal,
professional or other privilege. If you are not the intended addressee,
you must not disclose, copy or take any action in reliance of this
transmission. If you have received this transmission in error, 
please notify the sender as soon as possible.

This footnote also confirms that this message has been swept
for computer viruses.
**********************************************************************

-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.net
-- 
Author: Regis Biassala
  INET: [EMAIL PROTECTED]

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