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

I will install the latest snapshot to see if it changes. (This is a big shock after FB2.x has been running rock solid for about 20 years)

Is it possible to downgrade a v3 database back to v2.5 - google suggests "maybe" but my tests all fail with gbak giving errors about backup version or ods



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.