On Tue, Sep 28, 2010 at 11:28, Niall Naughton
<niall.naugh...@meritsolutions.ie> wrote:
> Just recently we have been experiencing a lot of our firebird installations
> generating errors of type 'Error reading data from the connection.'. Our
> Firebird installations are of the 'Classic' type and have used version 1.5.2
> for the past few years. Our .Net based software connects with the
> FirebirdSql.Data.Firebird dll (version 1.0.1241.28320). To date our
Wow, this is *really*, no really, I mean really, old version.
> installations have caused very few incidents of the above error. In recent
> months the frequency of these error has grown considerably and is now a
> serious concern for us.
>
> The errors are sourced to mainly the
> FirebirdSql.Data.Firebird.FbResultset.Fetch() call. While the FirebirdFaq
> site states that this error is:
> a) someone rebooted or restarted the server
> b) Firebird server crashed
> this contradicts the fact that other PC's that are also connected to the
> same Server and not generating these errors. Some PC's seem to experience
> these problems more frequently than others connected to same server.
> Furthermore, while the Fetch() is the main source of these errors, this
> error is also (to a lesser extent) sourced by the calls
> FirebirdSql.Data.Firebird.FbConnection.Close()
> FirebirdSql.Data.Firebird.FbStatement.DropStatement().
>
> Is there a reason why we should expect the Fetch( ) call to be the main
> source of these errors? Is this error an issue with Firebird itself?
>
> We are under a lot of pressure to resolve this issue, and we'd appreciate
> any help that anyone can give us.
This is caused, by some network issue between the client and server.
It might by HW problem (i.e. cables) or SW as well (i.e. network card
driver bug).
I would start with pinging the server and logging times/success and
then merge these data with application exceptions. I'm pretty sure
there will be some pattern.
--
Jiri {x2} Cincura (x2develop.com founder)
http://blog.cincura.net/ | http://www.ID3renamer.com
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