Subject Re: [firebird-support] FB 1.5 Connection lost problem
Author Dan Wilson
On 8/13/2004 at 5:48 AM dirknaudts wrote:

> I'm setting up up a project on a customer's Server (Redhat Advanced
> Server 2.1 on Compaq Proliant Server), FB1.5 SS

> ISC ERROR CODE:335544721
> Unable to complete network request to host "".
> Error writing data to the connection.
> An established connection was aborted by the software in your host
> machine.
> This error only occurs after having been connected for some time
> (sometimes minutes, sometimes hours) so in the beginning all apps are
> working fine.

This seems to be either a 'feature' of Linux or something inside the Linux version of Firebird. I see this on my Linux Server as well (Fedora Core 2). I have never seen it happen with Firebird running under Windows. It is simple to duplicate: on a client machine, run isql, connect to a database, play with it (show tables, whatever), then leave isql alone for a while. Next time you try to issue a command via that isql session, it will freeze for a while and then finally report that the server connection was terminated. I have no explanation for it at this time, but find it very highly annoying.... In one's own code, one could certainly set up a periodic 'keepalive' request, but of course that won't work in isql.