14.01.2012 18:39, Nick Upson wrote:

>
> using 2.1.4 (epel) on centos 5.5, We had a firebird crash with this message:
>
> Fatal lock manager error: invalid lock id (0), errno: 4
>
> The system was under heavy load and it happened just after nbackup level 2
> started (which may be related)
>
> We need to work out how to avoid it happening again but currently don't
> know why it happened.

I'd suggest to avoid using nbackup until you upgrade to FB 2.5.


Dmitry