Subject Re: [firebird-support] Re: Problems after FB3 upgrade
Author Tony Christiansen
Hi Dmitry

First thanks for the fantastic work you do on Firebird.

I updated from FB3.0.0 (release version) to the 8-Sep-2016 snapshot and my exception count dropped from 100's of seemingly random exceptions a day to zero :)

Most returned a generic "Error Writing Data to the Connection" (even for select queries) but the stack trace suggested problems with blob data in other cases and I see a fix that mentioned blob data in about July.

Best regards

On 07/09/2016 1:11 AM, 'livius' liviuslivius@... [firebird-support] wrote:

as Dmitry say problems can be already solved in snapshot build
e.g. can be same as your problems –
use napshot build from
Karol Bieniaszewski
Sent: Tuesday, September 6, 2016 8:17 AM
Subject: [firebird-support] Re: Problems after FB3 upgrade

06.09.2016 08:55, Tony Christiansen wrote:
> My client needed a server rebuild after a ransomware attack so I took
> the opportunity to upgrade from FB2.5 to FB3. My client application is
> Delphi using IBX components.
> Now they are experiencing repeated crashes with an array of exceptions
> - the most common being "Error writing data to the connection" and
> "invalid transaction handle (expecting explicit transaction start)"
> mostly on select queries.

It's worth trying a v3.0.1 snapshot before considering downgrade. It may
have these issue fixed already.