RE: jbosse and database persistance

passed this on to an associate and this was his comment...

"They may be using Jboss Container Managed Persistence, we use Toplink so for us we are ok. They are being bit by using the CMP."

-----Original Message-----
From: oracle-l-bounce_at_freelists.org
[mailto:oracle-l-bounce_at_freelists.org]On Behalf Of Duret, Kathy Sent: Tuesday, September 21, 2004 9:55 AM To: 'ryan_gaffuri_at_comcast.net'; Duret, Kathy; Oracle L (E-mail) Cc: Duret, Kathy
Subject: RE: jbosse and database persistance

It is jbosse and you can turn it off, but we want in on for the persistance. This is new as of 3.2.5  

I don't know the details on the fast dual in 10G either, want to look into that as well.
-----Original Message-----
From: ryan_gaffuri_at_comcast.net [mailto:ryan_gaffuri_at_comcast.net] Sent: Tuesday, September 21, 2004 9:46 AM To: kduret_at_starkinvestments.com; Oracle L (E-mail) Cc: Duret, Kathy
Subject: Re: jbosse and database persistance

we are using jboss also. we have a million hits a day against dual. i wonder if its jboss. why does jboss do that? anyway to turn it off?

i've been concerned about x$dual because its an x$table and noone outside oracle really knows with absolute certainty why it has no LIOs and if there are any consequences(I'm anal). You can use an IOT to reduce the LIOs from 3 to 1?

I know 10g has a fast dual so you totally bypass a select on dual when getting stuff like sysdate etc... don't know the details.

• Original message --------------

> Jbosse in a new version 3.2.5 checks database persistance by using select
> 'x' from dual. 5,000,000 hits in 10 days.... ouch!
>
> Since the developers are using a fair amount of connections - about 100
> needless to say my database is getting hit hard by this.
>
> I have the developer looking into whether we can change it to using the
> x$dual table instead.
>
> Does anyone have any other suggestions as to what I could do? Is anyone
> one else having this issue?
>
> We are on 8i, 9i (which is less intensive) and migrating to 10G on
Solaris.
>
> merci,
>
> Kathy
>
>
> This transmission contains information solely for intended recipient and
may
> be privileged, confidential and/or otherwise protect from disclosure. If
> you are not the intended recipient, please contact the sender and delete
all
> copies of this transmission. This message and/or the materials contained
> herein are not an offer to sell, or a solicitation of an offer to buy, any

> securities or other instruments. The information has been obtained or
> derived from sources believed by us to be reliable, but we do not
represent
> that it is accurate or complete. Any opinions or estimates contained in
> this information constitute our judgment as of this date and are subject
to
> change without notice. Any information you share with us will be used in
> the operation of our business, and we do not request and do not want any
> material, nonpublic information. Absent an express prior written
agreement,
> we are not agreeing to treat any information confidentially and will use
any
> and all information and reserve the right to publish or disclose any
> information you share with us.
>
>
> --
> http://www.freelists.org/webpage/oracle-l

This transmission contains information solely for intended recipient and may be privileged, confidential and/or otherwise protect from disclosure. If you are not the intended recipient, please contact the sender and delete all copies of this transmission. This message and/or the materials contained herein are not an offer to sell, or a solicitation of an offer to buy, any securities or other instruments. The information has been obtained or derived from sources believed by us to be reliable, but we do not represent that it is accurate or complete. Any opinions or estimates contained in this information constitute our judgment as of this date and are subject to change without notice. Any information you share with us will be used in the operation of our business, and we do not request and do not want any material, nonpublic information. Absent an express prior written agreement, we are not agreeing to treat any information confidentially and will use any and all information and reserve the right to publish or disclose any information you share with us.

--
http://www.freelists.org/webpage/oracle-l
--
http://www.freelists.org/webpage/oracle-l