It looks like a corrupt DB to me.

I don't know exactly what circumstance, but I guess either the version of
the record your transaction would give has been "removed", which should not
happen, or garbage collection is expecting there to be a back version, but
there isn't one there.

I would get everyone off the DB, shut it down and do an os "oh my god" copy,
then go through the standard DB corruption fix routines (gfix, backup and
restore whatever).

JAC.


""Leos Urban"" <leos.urban@...> wrote in message
news:002601c249b5$23418580$0b01a8c0@......

> Hello,
> we use Firebird 1.0.796 SuperServer on RedHat Linux box.
>
> Some time ago and yesterday again we got in log file following message:
>
> clever.idum.cz (Server) Sun Aug 18 19:46:51 2002
> Database: /home/firebird/is.gdb
> internal gds software consistency check (cannot find record back version
> (291))
>
> My questions are:
> What is reason of this message?
> How to prevent this error?
> And how to solve problem for now?
>
> Thank you very much.
> Leos
>
>
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