Subject | Re: [ib-support] Re: IB settings |
---|---|
Author | Jed Nicolau Filho |
Post date | 2002-08-05T22:58:10Z |
Thank you very much Andrew
I have a 3-tier application using BDE ! (Maybe the Problem !)
If two remote clients inpunt some concurrent information, for example two
different gus in different clients inpunt the differen quilometers for the
same car, this data have to be validate (several selects in other tables) If
ok it updates several records in several other tables. I need to use cursor
(Query for looping) two !
In this case raise freeze two clients app !
Using client and server app in the same computer, that issue raise
"Lock conflict on no wait transacation ..."
I suppose that is happening a blocking transaction when concurrent imput !
Thanks again for your reply
Best Regards
Jed
""csswa"" <csswa@...> escreveu na mensagem
news:aimeh2+rvti@......
I have a 3-tier application using BDE ! (Maybe the Problem !)
If two remote clients inpunt some concurrent information, for example two
different gus in different clients inpunt the differen quilometers for the
same car, this data have to be validate (several selects in other tables) If
ok it updates several records in several other tables. I need to use cursor
(Query for looping) two !
In this case raise freeze two clients app !
Using client and server app in the same computer, that issue raise
"Lock conflict on no wait transacation ..."
I suppose that is happening a blocking transaction when concurrent imput !
Thanks again for your reply
Best Regards
Jed
""csswa"" <csswa@...> escreveu na mensagem
news:aimeh2+rvti@......
>
> Jed, it's a long-running query -- why do you say the server 'freezes'
> when two people run the same long-running query? Please describe
> exactly what 'freezes' means, e.g. IB server process stays at 0%?
> 100%? You've monitored the process and can see that there is no disk
> activity on the db file or temp sort files?
>
> Sorry, but again there is no magic answer for you. There are too
> many variables to even guess at what's happening in your case.
>
> How does your app handle transactions? What type of IB connectivity
> does it use (e.g. BDE, ODBC, etc.). What are the server and client
> platforms? Size of db? Contents of query?
>
> As One-L would say, How long is a piece of string?
>
> You'll need to provide much more detail to get to the bottom of this.
>
> If it's transaction locking that you suspect, read more about it here:
>
> http://www.cvalde.com/document/TransactionOptions.htm
> http://www.cvalde.com/ibDocumentation.htm
>
> But believe me, transaction locking in IB is simple, elegant, and
> bombproof. The fault does not lie there.
>
> Regards,
> Andrew Ferguson
> -- I go to eleven.
>
>
> --- In ib-support@y..., "Jed Nicolau Filho" <jed@p...> wrote:
> > Thanks Andrew
> >
> > I have long trasaction for several business role ! I have tested
> for two
> > users imput at the same time exactly ! Interbase freeze !!!
> >
> > I don't know how is its schema lock transaction !!!
> >
> > Or If there is settings for that !
> >
> > What's the way, please ?
> >
> > Thanks in Advance
> >
> > Best Regards
> >
> > Jed
> >
> >
>
>
>
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