"background updates of print queues via a dedicated process"

Gerald (Jerry) Carter jerry at samba.org
Wed Feb 12 05:32:09 GMT 2003

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On Wed, 12 Feb 2003, Martin Pool wrote:

> The Samba 3.0 roadmap mentions this as a wishlist item for 3.x.  I'm
> interested in looking at it. 
> Has anybody else already worked on it?

JF started on it, but do to some bugs it got sidetracked after killing 
the build farm machines.

> It seemed like it would involve a separate smbd process repeatedly
> parsing the output of lpq and feeding it into a database, rather than
> this being done on-demand from a regular smbd child.  I suppose when
> some change is noticed it will have to send a message to prod other
> smbds.

or the child smbd can always assume that it is up to date (of course
locking during an update makes sure that a smbd doesn't get a half done 
queue listing).

> It might be good for there to also be a way for the spooler to notify
> Samba when something has happened, so as to avoid polling.  

CUPS might support this.  I dunno.  or it could be added to lpd of course.

> This seems like it might help print server efficiency with many jobs
> or printers. 
> Am I on the right track? 

Sounds good to me.

cheers, jerry
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