[Samba] PDC migration: printing trouble. Summary.

[L.P.H. van Belle]

Hi, 

try this, first set alle the properties from user Administrator ( root ) 
then disconnect the printers for all users.

reconnect. try now how fast it is.

This works for my if the printer properties are slow.

Greetz, 

Louis 

>-----Oorspronkelijk bericht-----
>Van: samba-bounces+belle=bazuin.nl at lists.samba.org 
>[mailto:samba-bounces+belle=bazuin.nl at lists.samba.org] Namens 
>Ryan Novosielski
>Verzonden: dinsdag 6 mei 2008 8:28
>Aan: samba at lists.samba.org
>Onderwerp: Re: [Samba] PDC migration: printing trouble. Summary.
>
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>Remy Zandwijk wrote:
>
>> Second: all printers had an 'invalid users' setting in the share
>> definition.
>> It turned out that this considerably stresses the CPU. It 
>took about 10
>> seconds for the properties to show up for a 'HP 4250PS 
>driver' printer.
>> While
>> truss-ing the smbd process, we saw that the smbpasswd file was opened
>> for 85
>> times (from the click on 'properties' to when the properties 
>appeared). I
>> think that's a lot. We have around 4700 entries in the 
>smbpasswd file, so I
>> can imagine why it takes long for the properties to show up 
>when 6 invalid
>> users are configured. Only one would expect that the 
>smbpasswd file is
>> opened
>> just 6 to 10 times, and not 85 times. I guess this won't happen when
>> using a
>> tdbsam passdb backend (which is not an option for us for now).
>
>I can confirm that your results will be much improved in all respects
>when you move to a proper backend. In our situation, the PW file was
>always locked as a result of too many reads and we were entirely unable
>to change passwords for a period of time. In fact, I would 
>encourage you
>to do something about this before you get bitten by it, 
>because with the
>file being read so often, you may run into this problem too.
>
>- --
> ---- _  _ _  _ ___  _  _  _
> |Y#| |  | |\/| |  \ |\ |  | |Ryan Novosielski - Systems Programmer II
> |$&| |__| |  | |__/ | \| _| |novosirj at umdnj.edu - 
>973/972.0922 (2-0922)
> \__/ Univ. of Med. and Dent.|IST/AST - NJMS Medical Science 
>Bldg - C630
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