Ofer Inbar:
> > Postfix hash_queue_names uses one-character (letter or digit)
> > directory names. This is sufficient to implement a tree.
> >
> > Current queue file names are longer than 1, because they have two
> > parts (inode number and time).
>
> Thanks!
>
> > A future queue implementation may use a different organization:
> > one tree that combines incoming, active and deferred, with file
> > names that are cryptograpically unique, and without rename()
> > operations, but some other mechanism to keep track of state
> > so that we can eliminate reading directories.
>
> Would such a theoretical queue implementation provide a simple way to
> ask postfix how many items are in each queue?
That state is kept in "some other mechanism" as mentioned above.
Sendmail X uses Berkeley DB. I would not trust any of the UNIX
user-level "databases" for that purpose.
Wietse
