> -----Original Message-----
> From: julien_ferraro [mailto:j.ferraro@...]
> Sent: Wednesday, August 28, 2002 1:41 PM
> To: ib-support@yahoogroups.com
> Subject: [ib-support] Re: error reading data from connection
>
>
> Hello,
>
> I have the same problem. And I don't see anything wrong with my
> application. I use Delphi, TIBDatabase and TIBTransaction ... maybe

I had same meanig - no problem in application, but I think that is some
problem
with concurent access into one connection. GDS32 don't support concurency
:(.
(look at
http://sourceforge.net/tracker/index.php?func=detail&aid=446227&group_id=902
8&atid=109028).
If you use more thread, you must use more connections. But I had this
problem
in single thread application too. Some function is ranning windows message
queue
(for example TIB_Query.Refresh) and other part of your code may be ran in
bad order.

Zdenek

>
> --- In ib-support@y..., "Alan McDonald" <alan@m...> wrote:
> > that's not a bug in gds32.dll - that a bug in your transaction
> assignment.
> > Alan
> >
> > > -----Original Message-----
> > > From: Kotala Zdenìk [mailto:Zdenek.Kotala@M...]
> > > Sent: Wednesday, 21 August 2002 22:34
> > > To: 'ib-support@y...'
> > > Subject: RE: [ib-support] error reading data from connection
> > >
> > >
> > >
> > >
> > > > -----Original Message-----
> > > > From: geroldschwarz [mailto:gschwarz@i...]
> > > > Sent: Tuesday, August 20, 2002 10:33 PM
> > > > To: ib-support@y...
> > > > Subject: [ib-support] error reading data from connection
> > > >
> > >
> > > > I built a Delphi app server that creates a new session for each
> > > > client. Now with increasing traffic I will sometimes get the
> error
> > > > message "error reading data from connection". All other
> > > > clients/sessions are not influenced by this error and work
> properly.
> > >
> > > I have similar problem, I use only one connection in single
> thread. It
> > > is depend on database size and used function. I trying locate
> > > this problem,
> > > but I don't have solution in this moment. I mean that problem is
> some bug
> > > in gds32.dll and I want recompile this lib in debug for better
> monitoring,
> > > but I don't know how it do. Can some body help me with compile
> gds32.dll?
> > >
> > > With Regards Zdenek Kotala
> > >
> > > Appendix:
> > >
> > > I get next errors:
> > >
> > > 1)
> > > ISC ERROR CODE:335544726
> > > ISC ERROR MESSAGE:
> > > Error reading data from the connection.
> > > SQL ERROR CODE:-902
> > > SQL ERROR MESSAGE:
> > > Unsuccessful execution caused by a system error that precludes
> > > successful execution of subsequent statements
> > >
> > > or some time:
> > >
> > > 2)
> > > ISC ERROR CODE:335544332
> > > ISC ERROR MESSAGE:
> > > invalid transaction handle (expecting explicit transaction start)
> > > SQL ERROR CODE:-901
> > > SQL ERROR MESSAGE:
> > > Unsuccessful execution caused by system error that does not
> preclude
> > > successful execution of subsequent statements
> > >
> > > and in finaly a get next error :(
> > >
> > > Access violation at address 4055EAC4 in module 'gds32.dll'.
> > > Read of address 00000004
> > >
> > >
> > >
> > >
> > > To unsubscribe from this group, send an email to:
> > > ib-support-unsubscribe@e...
> > >
> > >
> > >
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> http://docs.yahoo.com/info/terms/
> > >
> > >
>
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