On 20-11-2012 11:24, hugo.larson wrote:

> Hello,
>
> I have a strange problem.
> I'm running JayBird 2.0.0, JBuilder with FB 1.5.3 on localhost.
>
> It happens sporadically when I want to change a generator with this statement:
> SELECT GEN_ID (REC_ID,1) AS ID from rdb$database
>
> I get the exception:
> GDS Exception. 335544721. Unable to complete network request to host "".
> Reason: Unable to complete network request to host "".
>
> It happens seldom but it happens. The funny thing is that just before the generator statement, other statements runs fine without any problems whatsoever, ever.
>
> Any clue?

There have been 3 more releases for FB 1.5 since 1.5.3; I scanned that
releasenotes but nothing really stood out, although some crashes were
fixed. Are you using classic or superserver? Does the entire server
crash, or do you just lose the connection?

The message seems to suggest that Jaybird loses the connection with
Firebird, but a full stacktrace would be helpful here. Also check the
Firebird.log of your server if there are problems logged around that time.

Mark

--
Mark Rotteveel