RE: jbosse and database persistance
- From: "Duret, Kathy" <kduret@xxxxxxxxxxxxxxxxxxxx>
- To: "'ryan_gaffuri@xxxxxxxxxxx'" <ryan_gaffuri@xxxxxxxxxxx>, "Duret, Kathy" <kduret@xxxxxxxxxxxxxxxxxxxx>, "Oracle L (E-mail)" <oracle-l@xxxxxxxxxxxxx>
- Date: Tue, 21 Sep 2004 09:54:46 -0500
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@xxxxxxxxxxx [mailto:ryan_gaffuri@xxxxxxxxxxx]
Sent: Tuesday, September 21, 2004 9:46 AM
To: kduret@xxxxxxxxxxxxxxxxxxxx; 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
>
>
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