samba - Apr 2014 - samba and cups printing.

Hai, 
?
Im?working on the?print server, samba cups, and so fare, looks ok.
?
but im seeing messages like. 
?
[2014/04/08 08:39:29.804575,? 0]
../source3/rpc_server/rpc_ep_register.c:136(rpc_ep_register_loop)
? Failed to register endpoint 'spoolss'!

?
[2014/04/07 16:52:12.100752,? 0]
../source3/printing/nt_printing_ads.c:116(nt_printer_guid_get)
? Failed to get GUID for printer MyTestPrinter
[2014/04/07 16:52:12.101056,? 0]
../source3/rpc_server/spoolss/srv_spoolss_nt.c:4847(_spoolss_GetPrinter)
? _spoolss_GetPrinter: failed to construct printer info level 7 - WERR_BADFILE

[2014/04/07 16:46:17.540795,? 0]
../source3/rpc_server/spoolss/srv_spoolss_nt.c:8302(_spoolss_AddPrinterDriverEx)
? _spoolss_AddPrinterDriverEx: level 8 not yet implemented

im use-ing samba with the following settings:? (? basic member settings with? )
load printers = yes
rpc_server:spoolss = external
rpc_daemon:spoolssd = fork
spoolssd:prefork_min_children = 15?????????? # Minimum number of child processes
spoolssd:prefork_max_children = 75????????? # Maximum number of child processes
spoolssd:prefork_spawn_rate = 25??????????? # Start (fork) x new childs if one
connection comes in (up to prefork_max_children)
spoolssd:prefork_max_allowed_clients = 200? # Number of clients, a child process
should be responsible for
spoolssd:prefork_child_min_life = 60??????? # Minimum lifetime of a child
process (60 seconds is the minimum, even a lower value has been configured )
?
I?did setup the printer operator privileges.
(https://wiki.samba.org/index.php/Samba_as_a_print_server#Granting_print_operator_privileges)
( thanks Rowland?and Stephane, for there help, now it works great. ) 
I did setup the shares
https://wiki.samba.org/index.php/Setup_and_configure_file_shares#Change_permissions_on_folder_of_a_share?
?
I do need to setup the trusts
https://wiki.samba.org/index.php/Samba_as_a_print_server#Setting_up_a_GPO_for_trusting_printer_drivers
?
How mature is this new spoolssd? 
since im reading here : http://wiki.samba.org/index.php/Samba_as_a_print_server?
Note: Some features of spoolssd were broken before 4.0.17 and 4.1.7. That's
why it is recommended to use at least this versions!
?
4.1.7 ? does the next release has good fixed for spoolssd ? 
?
and how is the experiance at others with samba and cups printing, with the new
spoolssd.
?
any tips or?advices is apreciated. 
?
Thanks,
?
Louis
?

Hello Louis,

Am 08.04.2014 08:46, schrieb L.P.H. van Belle:
> but im seeing messages like.
>
> [2014/04/08 08:39:29.804575,  0]
../source3/rpc_server/rpc_ep_register.c:136(rpc_ep_register_loop)
>    Failed to register endpoint 'spoolss'!
>
>
> [2014/04/07 16:52:12.100752,  0]
../source3/printing/nt_printing_ads.c:116(nt_printer_guid_get)
>    Failed to get GUID for printer MyTestPrinter
> [2014/04/07 16:52:12.101056,  0]
../source3/rpc_server/spoolss/srv_spoolss_nt.c:4847(_spoolss_GetPrinter)
>    _spoolss_GetPrinter: failed to construct printer info level 7 -
WERR_BADFILE
>
> [2014/04/07 16:46:17.540795,  0]
../source3/rpc_server/spoolss/srv_spoolss_nt.c:8302(_spoolss_AddPrinterDriverEx)
>    _spoolss_AddPrinterDriverEx: level 8 not yet implemented
Don't worry about them.



> I do need to setup the trusts
 > 
https://wiki.samba.org/index.php/Samba_as_a_print_server#Setting_up_a_GPO_for_trusting_printer_drivers

If you don't want your users always to accept the warning when 
connecting to a printer, you should configure it. :-)



> How mature is this new spoolssd?
> since im reading here :
http://wiki.samba.org/index.php/Samba_as_a_print_server
> Note: Some features of spoolssd were broken before 4.0.17 and 4.1.7.
That's why it is recommended to use at least this versions!
It was planned, that 4.0.17 and 4.1.7 would be released last week. 
That's why I already put that versions into to the HowTo. But are 
delayed for a few days now.

The reason for at least this versions are, that they will include two 
patches for bugs I found:
1. In previous versions you have to configure the endpoint mapper, too. 
Otherwise spoolssd wouldn't start. Even if it's not a dependency. (Bug 
#10474)
2. But more serious was a bug that prevents uploading and assigning 
drivers, when spoolssd was enabled (Bug #10481).

So if you want to use spoolssd, you should wait for the next release or 
use the git version.



> and how is the experiance at others with samba and cups printing, with the
new spoolssd.
If you have a large number of printers, spoolssd should be an 
improvement. But before the HowTo, there was no documentation, so I 
guess nobody used it, even if it's included since 4.0. That's why it may
still contain bugs. But it's easy to disable in the config and then you 
are back at the traditional stuff.

It would be nice if more people would try spoolssd and report their 
experiences (and possible bugs to get them fixed soon).


Regards,
Marc