Re: LPRng: 2 print servers both spooling to one physical printer

[christoph . beyer]

Hey Toby,

this might be a bad idea because of
 locking problems, if one spooler has a hanging connection or is
performing a long timeout (WINDOWS !!!) the printer is unavailable for the
second spooler. Also if you got 100 jobs in one queue on one server the
job on the second server  will most likely wait for a long time because
the printer port will not get unlocked during printing the 1000 jobs from
the first server. Generally it probably depends on your local environment
wether you will have problems or not.

The advantadge thow is that you can put rm=spooler1,spooler2:\ in
the client printcap so that the client will try the second server if the
first one is unavailable (groovy, hidden failover feature)

 best regards
~christoph


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On Thu, 31 Oct 2002, Toby Blake wrote:

 Very quick question: is there any reason why this shouldn't be done?
 I seem to recall somebody saying that it's a bad idea, but my brief
 tests seem to indicate it works OK.

 Thanks
 Toby Blake
 University of Edinburgh


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Re: LPRng: 2 print servers both spooling to one physical printer

[Ivan Petrovich]

[EMAIL PROTECTED] a e'crit:

 second spooler. Also if you got 100 jobs in one queue on one server the
 job on the second server  will most likely wait for a long time because
 the printer port will not get unlocked during printing the 1000 jobs from
 the first server. Generally it probably depends on your local environment

My personal experience seems to contradict that, and would, in a
different way, discourage the use of more than one server.

We have a primary printer server which serves all the normal print
jobs. Once in a while, I would send a print job off to the secondary
server, to be printed on the same physical printer. If there are 10
jobs already waiting on the primary server, the job that I just queued
on the other server should rightfully wait for its turn after those 10
jobs. But that ain't the case. The printer seems to take requests from
the two servers alternatively. As a result, my other print job gets
served as soon as the current print job on the primary server is
completed.

This is a great feature for those who wish to jump the queue (like I
do from time to time for my personal stuff), but is probably not ideal
for most normal purposes.

Regards.

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