> We have several lists that are connected to either Oracle or SQL
> Server database tables.
>
> We have been getting more and more of these errors stating that the
> list in use by another process.
>
> Can someone explain exactly what is going on?
>
> The timing of this particular example 00:03:02 leads me to believe
> that Listserv keeps trying to access the list, since I doubt that
> there is user trying to mail to this list at midnight.
Midnight is when digests are sent. It appears to me the problem is
what it states, another process has a lock on the file. This is
generally a backup process or perhaps a virus scanner. Since this is
just after midnight, I'll bet on the backup process.