On Fri, 10 Dec 2004, Gerald (Jerry) Carter wrote:
Ryan Novosielski wrote:
| I changed the 'lpq cache time' parameter to 5 | (from the default) and the problem seems to | have gone away. The status (Paused/Printing, | or nothing for jobs that are queued) has | returned. However, now the Pages are all | N/A (as it was before I upgraded), and the size | field is back (but static). The port field is blank...
All of those fields are filling in via change notify messages. Please note that MS has broken this functionality with XP sp2 (even in a Windows network). I don't know of any hotfix that addresses it yet.
Ah! That may be the cause of it then -- my desktop is running XP SP2. If anyone DOES have any information on this, please send it along.
Also be aware that setting 'lpq cache = 5' will cause high loads (and without the patch I mentioned possibly large memory consumption caused by excessive amounts of print_queue_update() calls.
OK, I will look more carefully at this value.
| Before changing this parameter, as I noted below, | Status was missing, but pages was listed (and dynamic) | as was size (same). Now I only get this on incoming | jobs (jobs with a "Spooling" status). I'm curious if | there is any good documentation on how to expect this | to work... the printing stuff doesn't cover this | particular part of it too much.
Nope. It's all way to complicated IMO. Right now we batch up the print change notify messages before sending to the client. We also consolidate things like the page count and size messages so that we send one per printer per batch.
I have another question related to this. My NT admin appears to have disabled the channel that allows back-communication to the PC's -- does anyone know off the top of their head what setting/service on NT enables that so that I can try it out and ask him to re-enable it if it is helpful?
| I will apply the patch and let you know -- Samba | has been segfaulting somewhat too on 3.0.9, so I'm | hoping this will cure that as well.
I'm pretty sure it will.
Thanks for your efforts!
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