Maxjobs being ignored in cupsd.conf #1546

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michaelrsweet opened this Issue Apr 7, 2006 · 4 comments

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michaelrsweet commented Apr 7, 2006

Version: 1.1.23
CUPS.org User: ericross

Same problem as #999.

Setting MaxJobs to 0 or any number above 1000 still limits the number of jobs to 1000 at most. We have a program that spools several hundred jobs to a print queue and the queue sometimes stops accepting at around 300-400 jobs, when other print queues have no more than 10 jobs all combined.

Will this be fixed or is there a workaround?

Some cupsd.conf settings:

PreserveJobHistory No
PreserveJobFiles No
AutoPurgeJobs Yes (we're not using quotas, but I set it anyway)

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michaelrsweet commented Apr 7, 2006

CUPS.org User: mike

Are you using the standard 1.1.23 release, or packages from a Linux distributor?

Can you attach your error_log and cupsd.conf files?

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michaelrsweet commented Apr 11, 2006

CUPS.org User: mike

Thanks for the files; will get to it after I return from the printing summit...

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michaelrsweet commented Apr 13, 2006

CUPS.org User: ericross

I discovered something ...

The program generating the print jobs is writing to the UNC name of the Samba print queue. I found a setting in Samba that was also limiting print jobs to 1000 per queue. I increased Samba and CUPS to 5000 jobs.

In testing, I've gotten it over 4000 jobs in a stopped queue. It appears to be working.

Sorry for the trouble.

Thanks.

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michaelrsweet commented Apr 14, 2006

"cupsd.conf":

"$Id: cupsd.conf.in,v 1.5 2002/05/27 14:40:42 mike Exp $"

Sample configuration file for the Common UNIX Printing System (CUPS)

scheduler.

Copyright 1997-2002 by Easy Software Products, all rights reserved.

These coded instructions, statements, and computer programs are the

property of Easy Software Products and are protected by Federal

copyright law. Distribution and use rights are outlined in the file

"LICENSE.txt" which should have been included with this file. If this

file is missing or damaged please contact Easy Software Products

at:

Attn: CUPS Licensing Information

Easy Software Products

44141 Airport View Drive, Suite 204

Hollywood, Maryland 20636-3111 USA

Voice: (301) 373-9603

EMail: cups-info@cups.org

WWW: http://www.cups.org

########################################################################

This is the CUPS configuration file. If you are familiar with

Apache or any of the other popular web servers, we've followed the

same format. Any configuration variable used here has the same

semantics as the corresponding variable in Apache. If we need

different functionality then a different name is used to avoid

confusion...

########################################################################

########
######## Server Identity
########

ServerName: the hostname of your server, as advertised to the world.

By default CUPS will use the hostname of the system.

To set the default server used by clients, see the client.conf file.

#ServerName myhost.domain.com
ServerName hubmain.hublaw.com

ServerAdmin: the email address to send all complaints/problems to.

By default CUPS will use "root@hostname".

#ServerAdmin root@your.domain.com
ServerAdmin root

########
######## Server Options
########

AccessLog: the access log file; if this does not start with a leading /

then it is assumed to be relative to ServerRoot. By default set to

"/var/log/cups/access_log"

You can also use the special name "syslog" to send the output to the

syslog file or daemon.

#AccessLog /var/log/cups/access_log
#AccessLog /var/log/cups_access_log
##AccessLog syslog
AccessLog /var/log/cups_access_log

Classification: the classification level of the server. If set, this

classification is displayed on all pages, and raw printing is disabled.

The default is the empty string.

#Classification classified
#Classification confidential
#Classification secret
#Classification topsecret
#Classification unclassified

ClassifyOverride: whether to allow users to override the classification

on printouts. If enabled, users can limit banner pages to before or

after the job, and can change the classification of a job, but cannot

completely eliminate the classification or banners.

The default is off.

#ClassifyOverride off

DataDir: the root directory for the CUPS data files.

By default "/usr/share/cups".

#DataDir /usr/share/cups

DefaultCharset: the default character set to use. If not specified,

defaults to "utf-8". Note that this can also be overridden in

HTML documents...

#DefaultCharset utf-8

DefaultLanguage: the default language if not specified by the browser.

If not specified, the current locale is used.

#DefaultLanguage en

DocumentRoot: the root directory for HTTP documents that are served.

By default "/usr/share/doc/cups".

#DocumentRoot /usr/share/doc/cups

ErrorLog: the error log file; if this does not start with a leading /

then it is assumed to be relative to ServerRoot. By default set to

"/var/log/cups/error_log"

You can also use the special name "syslog" to send the output to the

syslog file or daemon.

#ErrorLog /var/log/cups/error_log
ErrorLog /var/log/cups_error_log

FontPath: the path to locate all font files (currently only for pstoraster)

By default "/usr/share/cups/fonts".

#FontPath /usr/share/cups/fonts

LogLevel: controls the number of messages logged to the ErrorLog

file and can be one of the following:

debug2 Log everything.

debug Log almost everything.

info Log all requests and state changes.

warn Log errors and warnings.

error Log only errors.

none Log nothing.

#LogLevel info
#LogLevel warn
#LogLevel debug
##LogLevel warn
LogLevel info

MaxLogSize: controls the maximum size of each log file before they are

rotated. Defaults to 1048576 (1MB). Set to 0 to disable log rotating.

#MaxLogSize 0

PageLog: the page log file; if this does not start with a leading /

then it is assumed to be relative to ServerRoot. By default set to

"/var/log/cups/page_log"

You can also use the special name "syslog" to send the output to the

syslog file or daemon.

#PageLog /var/log/cups/page_log
PageLog syslog

PreserveJobHistory: whether or not to preserve the job history after a

job is completed, cancelled, or stopped. Default is Yes.

#PreserveJobHistory Yes
PreserveJobHistory No

PreserveJobFiles: whether or not to preserve the job files after a

job is completed, cancelled, or stopped. Default is No.

#PreserveJobFiles No
PreserveJobFiles No

AutoPurgeJobs: automatically purge jobs when not needed for quotas.

Default is No.

#AutoPurgeJobs No
AutoPurgeJobs Yes

MaxJobs: maximum number of jobs to keep in memory (active and completed.)

Default is 500; the value 0 is used for no limit.

#MaxJobs 500
MaxJobs 1000

Printcap: the name of the printcap file. Default is /etc/printcap.

Leave blank to disable printcap file generation.

#Printcap /etc/printcap

PrintcapFormat: the format of the printcap file, currently either

BSD or Solaris. The default is "BSD".

#PrintcapFormat BSD
#PrintcapFormat Solaris

PrintcapGUI: the name of the GUI options panel program to associate

with print queues under IRIX. The default is "/usr/bin/glpoptions"

from ESP Print Pro.

This option is only used under IRIX; the options panel program

must accept the "-d printer" and "-o options" options and write

the selected printer options back to stdout on completion.

#PrintcapGUI /usr/bin/glpoptions

RequestRoot: the directory where request files are stored.

By default "/var/spool/cups".

#RequestRoot /var/spool/cups

RemoteRoot: the name of the user assigned to unauthenticated accesses

from remote systems. By default "remroot".

#RemoteRoot remroot

ServerBin: the root directory for the scheduler executables.

By default "/usr/lib/cups".

#ServerBin /usr/lib/cups

ServerRoot: the root directory for the scheduler.

By default "/etc/cups".

#ServerRoot /etc/cups

########
######## Encryption Support
########

ServerCertificate: the file to read containing the server's certificate.

Defaults to "/etc/cups/ssl/server.crt".

#ServerCertificate /etc/cups/ssl/server.crt

ServerKey: the file to read containing the server's key.

Defaults to "/etc/cups/ssl/server.key".

#ServerKey /etc/cups/ssl/server.key

########
######## Filter Options
########

User/Group: the user and group the server runs under. Normally this

must be lp and sys, however you can configure things for another

user or group as needed.

Note: the server must be run initially as root to support the

default IPP port of 631. It changes users whenever an external

program is run, or if the RunAsUser directive is specified...

#User lp
#Group sys
User lp
Group sys

RIPCache: the amount of memory that each RIP should use to cache

bitmaps. The value can be any real number followed by "k" for

kilobytes, "m" for megabytes, "g" for gigabytes, or "t" for tiles

(1 tile = 256x256 pixels.) Defaults to "8m" (8 megabytes).

#RIPCache 8m

TempDir: the directory to put temporary files in. This directory must be

writable by the user defined above! Defaults to "/var/spool/cups/tmp" or

the value of the TMPDIR environment variable.

#TempDir /var/spool/cups/tmp

FilterLimit: sets the maximum cost of all job filters that can be run

at the same time. A limit of 0 means no limit. A typical job may need

a filter limit of at least 200; limits less than the minimum required

by a job force a single job to be printed at any time.

The default limit is 0 (unlimited).

#FilterLimit 0

########
######## Network Options
########

Ports/addresses that we listen to. The default port 631 is reserved

for the Internet Printing Protocol (IPP) and is what we use here.

You can have multiple Port/Listen lines to listen to more than one

port or address, or to restrict access:

Port 80

Port 631

Listen hostname

Listen hostname:80

Listen hostname:631

Listen 1.2.3.4

Listen 1.2.3.4:631

NOTE: Unfortunately, most web browsers don't support TLS or HTTP Upgrades

for encryption. If you want to support web-based encryption you'll

probably need to listen on port 443 (the "https" port...)

#Port 80
#Port 443
#Port 631
Listen hubmain:631
Listen localhost:631

HostNameLookups: whether or not to do lookups on IP addresses to get a

fully-qualified hostname. This defaults to Off for performance reasons...

#HostNameLookups On
HostNameLookups Off

KeepAlive: whether or not to support the Keep-Alive connection

option. Default is on.

#KeepAlive On

KeepAliveTimeout: the timeout before Keep-Alive connections are

automatically closed. Default is 60 seconds.

#KeepAliveTimeout 60

MaxClients: controls the maximum number of simultaneous clients that

will be handled. Defaults to 100.

#MaxClients 100

MaxRequestSize: controls the maximum size of HTTP requests and print files.

Set to 0 to disable this feature (defaults to 0.)

#MaxRequestSize 0

Timeout: the timeout before requests time out. Default is 300 seconds.

#Timeout 300

########
######## Browsing Options
########

Browsing: whether or not to broadcast and/or listen for CUPS printer

information on the network. Enabled by default.

#Browsing On
Browsing Off

BrowseProtocols: which protocols to use for browsing. Can be

any of the following separated by whitespace and/or commas:

all - Use all supported protocols.

cups - Use the CUPS browse protocol.

slp - Use the SLPv2 protocol.

The default is "cups".

NOTE: If you choose to use SLPv2, it is strongly recommended that

you have at least one SLP Directory Agent (DA) on your

network. Otherwise, browse updates can take several seconds,

during which the scheduler will not response to client

requests.

#BrowseProtocols cups

BrowseAddress: specifies a broadcast address to be used. By

default browsing information is not sent!

Note: HP-UX does not properly handle broadcast unless you have a

Class A, B, C, or D netmask (i.e. no CIDR support).

Note: Using the "global" broadcast address (255.255.255.255) will

activate a Linux demand-dial link with the default configuration.

If you have a LAN as well as the dial-up link, use the LAN's

broadcast address.

The @Local address broadcasts to all non point-to-point interfaces.

For example, if you have a LAN and a dial-up link, @Local would

send printer updates to the LAN but not to the dial-up link.

Similarly, the @if(name) address sends to the named network

interface, e.g. @if(eth0) under Linux. Interfaces are refreshed

automatically (no more than once every 60 seconds), so they can

be used on dynamically-configured interfaces, e.g. PPP, 802.11, etc.

#BrowseAddress x.y.z.255
#BrowseAddress x.y.255.255
#BrowseAddress x.255.255.255
#BrowseAddress 255.255.255.255
#BrowseAddress @Local
#BrowseAddress @if(name)

BrowseShortNames: whether or not to use "short" names for remote printers

when possible (e.g. "printer" instead of "printer@host".) Enabled by

default.

#BrowseShortNames Yes

BrowseAllow: specifies an address mask to allow for incoming browser

packets. The default is to allow packets from all addresses.

BrowseDeny: specifies an address mask to deny for incoming browser

packets. The default is to deny packets from no addresses.

Both "BrowseAllow" and "BrowseDeny" accept the following notations for

addresses:

All

None

*.domain.com

.domain.com

host.domain.com

nnn.*

nnn.nnn.*

nnn.nnn.nnn.*

nnn.nnn.nnn.nnn

nnn.nnn.nnn.nnn/mm

nnn.nnn.nnn.nnn/mmm.mmm.mmm.mmm

@Local

@if(name)

The hostname/domainname restrictions only work if you have turned hostname

lookups on!

#BrowseAllow address
#BrowseDeny address

BrowseInterval: the time between browsing updates in seconds. Default

is 30 seconds.

Note that browsing information is sent whenever a printer's state changes

as well, so this represents the maximum time between updates.

Set this to 0 to disable outgoing broadcasts so your local printers are

not advertised but you can still see printers on other hosts.

#BrowseInterval 30
BrowseInterval 45

BrowseOrder: specifies the order of BrowseAllow/BrowseDeny comparisons.

#BrowseOrder allow,deny
#BrowseOrder deny,allow

BrowsePoll: poll the named server(s) for printers

#BrowsePoll address:port

BrowsePort: the port used for UDP broadcasts. By default this is

the IPP port; if you change this you need to do it on all servers.

Only one BrowsePort is recognized.

#BrowsePort 631

BrowseRelay: relay browser packets from one address/network to another.

#BrowseRelay source-address destination-address
#BrowseRelay @if(src) @if(dst)

BrowseTimeout: the timeout for network printers - if we don't

get an update within this time the printer will be removed

from the printer list. This number definitely should not be

less the BrowseInterval value for obvious reasons. Defaults

to 300 seconds.

#BrowseTimeout 300

ImplicitClasses: whether or not to use implicit classes.

Printer classes can be specified explicitly in the classes.conf

file, implicitly based upon the printers available on the LAN, or

both.

When ImplicitClasses is On, printers on the LAN with the same name

(e.g. Acme-LaserPrint-1000) will be put into a class with the same

name. This allows you to setup multiple redundant queues on a LAN

without a lot of administrative difficulties. If a user sends a

job to Acme-LaserPrint-1000, the job will go to the first available

queue.

Enabled by default.

#ImplicitClasses On

ImplicitAnyClasses: whether or not to create "AnyPrinter" implicit

classes.

When ImplicitAnyClasses is On and a local queue of the same name

exists, e.g. "printer", "printer@server1", "printer@server1", then

an implicit class called "Anyprinter" is created instead.

When ImplicitAnyClasses is Off, implicit classes are not created

when there is a local queue of the same name.

Disabled by default.

#ImplicitAnyCLasses Off

HideImplicitMembers: whether or not to show the members of an

implicit class.

When HideImplicitMembers is On, any remote printers that are

part of an implicit class are hidden from the user, who will

then only see a single queue even though many queues will be

supporting the implicit class.

Enabled by default.

#HideImplicitMembers On

########
######## Security Options
########

SystemGroup: the group name for "System" (printer administration)

access. The default varies depending on the operating system, but

will be "sys", "system", or "root" (checked for in that order.)

#SystemGroup sys

Access permissions for each directory served by the scheduler.

Locations are relative to DocumentRoot...

AuthType: the authorization to use:

None - Perform no authentication

Basic - Perform authentication using the HTTP Basic method.

Digest - Perform authentication using the HTTP Digest method.

(Note: local certificate authentication can be substituted by

the client for Basic or Digest when connecting to the

localhost interface)

AuthClass: the authorization class; currently only "Anonymous", "User",

"System" (valid user belonging to group SystemGroup), and "Group"

(valid user belonging to the specified group) are supported.

AuthGroupName: the group name for "Group" authorization.

Order: the order of Allow/Deny processing.

Allow: allows access from the specified hostname, domain, IP address,

network, or interface.

Deny: denies access from the specified hostname, domain, IP address,

network, or interface.

Both "Allow" and "Deny" accept the following notations for addresses:

All

None

*.domain.com

.domain.com

host.domain.com

nnn.*

nnn.nnn.*

nnn.nnn.nnn.*

nnn.nnn.nnn.nnn

nnn.nnn.nnn.nnn/mm

nnn.nnn.nnn.nnn/mmm.mmm.mmm.mmm

@Local

@if(name)

The host and domain address require that you enable hostname lookups

with "HostNameLookups On" above.

The @Local address allows or denies from all non point-to-point

interfaces. For example, if you have a LAN and a dial-up link,

@Local could allow connections from the LAN but not from the dial-up

link. Similarly, the @if(name) address allows or denies from the

named network interface, e.g. @if(eth0) under Linux. Interfaces are

refreshed automatically (no more than once every 60 seconds), so

they can be used on dynamically-configured interfaces, e.g. PPP,

802.11, etc.

Encryption: whether or not to use encryption; this depends on having

the OpenSSL library linked into the CUPS library and scheduler.

Possible values:

Always - Always use encryption (SSL)

Never - Never use encryption

Required - Use TLS encryption upgrade

IfRequested - Use encryption if the server requests it

The default value is "IfRequested".

Order Deny,Allow Deny From All Allow From 127.0.0.1 Allow From 192.168.4.

#<Location /classes>

You may wish to limit access to printers and classes, either with Allow

and Deny lines, or by requiring a username and password.

#

#<Location /classes/name>

You may wish to limit access to printers and classes, either with Allow

and Deny lines, or by requiring a username and password.

#

<Location /jobs>

You may wish to limit access to job operations, either with Allow

and Deny lines, or by requiring a username and password.

AuthType Basic Require valid-user

#<Location /printers>

You may wish to limit access to printers and classes, either with Allow

and Deny lines, or by requiring a username and password.

#

#<Location /printers/name>

You may wish to limit access to printers and classes, either with Allow

and Deny lines, or by requiring a username and password.

Anonymous access (default)

#AuthType None

Require a username and password (Basic authentication)

#AuthType Basic
#AuthClass User

Require a username and password (Digest/MD5 authentication)

#AuthType Digest
#AuthClass User

Restrict access to local domain

#Order Deny,Allow
#Deny From All
#Allow From .mydomain.com
#

<Location /admin>

You definitely will want to limit access to the administration functions.

The default configuration requires a local connection from a user who

is a member of the system group to do any admin tasks. You can change

the group name using the SystemGroup directive.

AuthType Basic
AuthClass System

Restrict access to local domain

Order Deny,Allow
Deny From All
Allow From 127.0.0.1
Allow From 192.168.4.

#Encryption Required

End of "$Id: cupsd.conf.in,v 1.5 2002/05/27 14:40:42 mike Exp $".

michaelrsweet added this to the Stable milestone Mar 17, 2016

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