[cups] empty page_log file

[Alex Korobkin]

Btw, I'm curious why CUPS sometimes puts total number of pages into the
log, but not every time.

I mean, sometimes it is
printer1 userA job# time 1 1 ..
printer1 userA job# time 2 1 ..
printer1 userA job# time 3 1 ..

And sometimes it is
printer1 userB job# time 1 1 ..
printer1 userB job# time 2 1 ..
printer1 userB job# time total 2 ..

What makes it omit writing total for certain jobs?

On Fri, Jun 10, 2016 at 1:37 PM, Brian Potkin <claremont102 at gmail.com>
wrote:

> On Fri 10 Jun 2016 at 16:56:22 +0200, Helge Blischke wrote:
>
> > > Am 10.06.2016 um 14:40 schrieb Brian Potkin <claremont102 at gmail.com>:
> > >
> > > cups-filter 1.9.0 introduces page logging for the pdftopdf filter. It
> > > will do page logging on behalf of printer drivers such as hpps which
> > > (at present) do not do it themselves.
> >
> > There is a directive PageLogFormat for use in cupsd.conf. It uses a
> > template defining the desired format for the page_log entries (see the
> > online help for details.
> >
> > If this keyword is *not* present, the default format is used.  But, if
> > the keyword is used without an argument, this means that *no* page log
> > entries are written, and an empty page_log file is created.
>
> Indeed, yes. PageLogFormat has to be non-empty or absent from cupsd.conf
> for pdftopdf to do page logging. It will do it when it is the last
> filter before the job is sent to the printer, something it doesn't do at
> present.
>
> When it isn't the final filter it checks what the last filter in the
> filtering chain is. If it gstopxl, foomatic-rip or hpps it logs to the
> page_log. Otherwise, it lets the last filter do its own thing.
>
> Regards,
>
> Brian.
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-- 
-Alex