Subject Re: [IBO] Delphi hang up at Close all
Author John Peterson
Hi,
I have just been stress testing a system and observed the exact same
behaviour. Unplugging the lan cable from the client caused the server CPU
to go to 100% for approx. 30 seconds, then it returns to normal. The client
had registered to receive event notification.
Platform is NT4, IB6.0.0.627, TCP/IP connection.

I assume the server is trying to send the event to the dead connection, and
busy waiting.
IB still is operational during this time, though slower.

Can someone provide the fix for this?

TIA
John
----- Original Message -----
From: "Bill Morrison" <bmorrison@...>
To: <IBObjects@yahoogroups.com>
Sent: Saturday, January 12, 2002 9:47 AM
Subject: RE: [IBO] Delphi hang up at Close all


> Yes, there is an old InterBase problem involving that scenario when using
> IBEvents over a TCP/IP connection (including localhost), with a certain
> combination of gds32.dll and IB Server versions.
>
>
> Bill M
>
> -----Original Message-----
> From: paulphope [mailto:paulhope@...]
> Sent: Friday, January 11, 2002 3:12 PM
> To: IBObjects@yahoogroups.com
> Subject: Re: [IBO] Delphi hang up at Close all
>
>
> Isn't this an old disconnecting from Interbase problem - system hangs
> with 100% processor utilisation. I've had it for years and still do
> occasionally. It happens with SQL Explorer, Quickdesk and any Delphi
> app using IB (IBO or BDE) so I don't think it is anything to do with
> IBO.
>
> Regards
> Paul
>
> > > Just because the problem is with IBO projects does not mean the
> > > problem is with IBO. There are other possibilities...
> > >
> > > Conflict with other packages. I have had problems in the past with
> > > some of my own package that depend on IBO (and then packages that
> > > depend on both IBO and my own packages).
> >
> > With both Windows and Builder, I have found that after
> > several months things get in a mess. It used to be a joke
> > that Microsoft's responce to 'funnies' in Windows was
> > 'reinstall', in reality it's a pain, but an essential pain.
> > My development machine gets wipped and I JUST put back the
> > versions I am now using. It does not eliminate the niggles,
> > but often it flags where a problem has come from.
> >
> > > You could also have driver or other software problems in your
> system
> > > that are causing Delphi some problems. W2K seems pretty stable
> to me,
> > > but such problems can still occur.
> >
> > Has anybody been having problems with W2k SP2. I took it
> > back off again ( had to reinstall W2k <g> ) as my compile
> > times quardupled when I had it on - obviously some Microsoft
> > protection addon, but I can't be bothered to waste time
> > investigating. ( XP seems to be worse - it is only Microsoft
> > products that are supposed to run faster, isn't it? )
> >
> > --
> > Lester Caine
> > -----------------------------
> > L.S.Caine Electronic Services
>
>
>
>
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>
>
___________________________________________________________________________
> IB Objects - direct, complete, custom connectivity to Firebird or
InterBase
> without the need for BDE, ODBC or any other layer.
>
___________________________________________________________________________
> http://www.ibobjects.com - your IBO community resource for Tech Info
papers,
> keyword-searchable FAQ, community code contributions and more !
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
>