I have experienced a number of issues just like this in the past 10 months. I wish I could help, but I don't know the answer. I have tried a bazillion different solutions. I've ripped out switches, changed the server hardware, changed cables, tested NIC cards, and prayed to the voodoo gods. I usually run Firebird on a Linux server as well, but today is the first day we are running our production database on a Windows 2008 Server.

I'm crossing my fingers that this behaves better on W2k8.

--- In firebird-support@yahoogroups.com, "jay_r42@..." <jay_r42@...> wrote:
>
> Hi,
>
> We have recently installed firebird 2.1.2.18118 Super Server onto a Dell R710 running Debian 5 (lenny).
>
> The firebird server appears to run fine for a while (anywhere between 1-5 days) but will then become unresponsive (i.e cannot connect to the database). The firebird process is still running, so the only way to resolve has been to restart the firebird service and connections to the database can then resume.
>
> In the firebird.log i have noticed frequent messages regarding 'read erno = 9' shown below.
> I have checked the FAQ on the firebird website (http://www.firebirdfaq.org/faq120/) for the meaning of this message and it seems to be related to a bad file number?
>
> We have two other servers running firebird and while they do get these errors it is not as frequent.
>
> If anyone could offer advice on how to stop these messages appearing, and also clarify if this is the reason the server becomes unresponsive it would be most apreciated.
>
> Thankyou,
> Jason
>
> mercury2 (Server) Thu Oct 22 15:50:33 2009
> INET/inet_error: read errno = 9
>
>
> mercury2 (Server) Thu Oct 22 15:50:33 2009
> INET/inet_error: read errno = 9
>
>
> mercury2 (Server) Thu Oct 22 15:50:34 2009
> INET/inet_error: select in packet_receive errno = 9
>
>
> mercury2 (Server) Thu Oct 22 15:50:37 2009
> INET/inet_error: read errno = 9
>
>
> mercury2 (Server) Thu Oct 22 15:50:38 2009
> INET/inet_error: select in packet_receive errno = 9
>
>
> mercury2 (Server) Thu Oct 22 15:50:40 2009
> INET/inet_error: read errno = 9
>