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Thread: slow print via Samba and Cups

  1. #1
    sluser NNTP User

    Default slow print via Samba and Cups

    Hello,

    sorry my english. We installed a new Server with Opensuse 11.0. We use the server as fileserver with Samba, cups (cyrus-imap,...). The old server used Suse 9.3Prof. The user and groups on the new server get the same uid and gid as on the old server. We tranfer all directories and files, published by Samba, to the new server. Erverything works well, but only the printing from WinXP-SP2-clients is slow. It theems that the beginnig need extremly long time befor the printig data spool to the server starts. The result on the Client is
    a) priniting via MS Office goes quickly (File-->print-->choose printer-->ok needs 2-3 seconds) and ~90s later(!) the printjob ist finished
    b) printing via Acrobat Reader or Notepad++ needs ~90s. In this time the programm-window ist frozen. After this time the indicator goes quickly to 100% an the printjob is finished 2-3s later.
    We try several changes, for instance
    - set lower access rights in /etc/cups/cupsd.conf
    - delete "#" befor "application/octet-stream" in /etc/cups/mime.*
    - change serveral options in smb.conf
    - cups completly deinstall and reinstall and new create all printers
    - control Registry-values in WinXP-clients
    - online-update in Opensuse 11.0 (at least on 2008-07-24)
    - install samba version 3.2.0-33.1 (standard is 3.2.0rc1-22.1)
    - install cups version 1.3.7-29.2 (standard is 1.3.7-25.1)
    - all samba- and linux-password for clients new
    but the problem is the same.
    That problem not occured on the server with SuSE9.3prof.
    With log level = 2 the samba.log shows
    Code:
    [2008/07/17 17:32:49,  1] smbd/service.c:make_connection_snum(1188)
      ClientPC01 (192.168.0.11) signed connect to service Drucker01 initially as user ClientUser (uid=1005, gid=100) (pid 30416)
    ...
    [2008/07/17 17:34:17,  1] smbd/service.c:close_cnum(1399)
      ClientPC01 (192.168.0.11) closed connection to service Drucker01
    [2008/07/17 17:34:17,  2] smbd/sesssetup.c:setup_new_vc_session(1363)
      setup_new_vc_session: New VC == 0, if NT4.x compatible we would close all old resources.
    [2008/07/17 17:34:17,  2] smbd/sesssetup.c:setup_new_vc_session(1363)
      setup_new_vc_session: New VC == 0, if NT4.x compatible we would close all old resources.
    [2008/07/17 17:34:17,  2] auth/auth.c:check_ntlm_password(308)
      check_ntlm_password:  authentication for user [ClientUser] -> [ClientUser] -> [ClientUser] succeeded
    [2008/07/17 17:34:17,  1] smbd/service.c:make_connection_snum(1188)
      ClientPC01 (192.168.0.11) signed connect to service Drucker01 initially as user ClientUser (uid=1005, gid=100) (pid 30784)
    So it seems that the client connect 2 times to the printer share - once without transfering any data and once with authentification (ntlm2) and then transfering printdata. The time between open and close the first connection ist ~90s.
    Here the beginning of the /etc/samba/smb.conf
    Code:
    [global]
       include = /etc/samba/dhcp.conf
       netbios name = SUSE-FS
       workgroup = "OURDOMAIN"
    # Sambaversion 3.2.0-33.1-SUSE
       server string = Samba3
       domain master = Yes
       domain logons = Yes
       local master = Yes
       preferred master = Yes   
       os level = 65
       wins support = Yes
       name resolve order = wins hosts lmhosts bcast
       dns proxy = yes
       security = user
       auth methods =
       passdb backend = smbpasswd
    #   update encrypted = yes
    #   password level = 4
    #   guest account = nobody
       username map = /etc/samba/smbusers
       smb passwd file = /etc/samba/smbpasswd
       ntlm auth = yes
       lanman auth = yes
           server signing = auto
           server schannel = auto
           client signing = auto
           client schannel = auto
       case sensitive = No
       nt acl support = No
       machine password timeout = 604800
    #   obey pam restrictions = No
       map to guest = Bad User
    #   printer admin = @ntadmin, root, administrator
       printing = cups
       printcap cache time = 750
       printcap name = cups
       cups options = raw
    #lpq cache time = 20
       add machine script = /usr/sbin/useradd -c Machine -G Rechner -d /var/lib/nobody -s /bin/false %m$
       logon script = logon.bat
    #logon path = \\%L\profiles\.msprofile
       logon home = \\%L\%U\.9xprofile
       logon drive = F:
       log file = /var/log/samba/samba.log
       syslog = 0
       log level = 2
       max log size = 4096
       socket options = TCP_NODELAY IPTOS_LOWDELAY SO_KEEPALIVE SO_RCVBUF=8192 SO_SNDBUF=8192
    #   socket options = TCP_NODELAY IPTOS_LOWDELAY
       dead time = 15
       oplocks = yes
       kernel oplocks = Yes
       level2 oplocks = no
       veto files = /*:Zone.Identifier/
    [homes]
       comment = Home Directories
       valid users = %S
       available = Yes
       browseable = no
       read only = No
       inherit acls = Yes
       vfs objects = recycle
       recycle:repository = ../../papierkorb/home/%S
       recycle:keeptree = true
       recycle:versions = true
       recycle:exclude = *.tmp
       recycle:touch_mtime = true
    [users]
       comment = Alle Benutzer
       path = /home
       read only = No
       inherit acls = Yes
       veto files = /aquota.user/groups/shares/
       browseable = no
    [printers]
       comment = Alle Drucker
       path = /var/tmp
       printable = Yes
       create mask = 0600
       browseable = No
    [print$]
       comment = Printer Drivers
       path = /var/lib/samba/drivers
       write list = @ntadmin root
       force group = ntadmin
       create mask = 0664
       directory mask = 0775
    ...
    This is what /etc/cups/cupsd.conf shows
    Code:
    Classification none
    DefaultCharset UTF-8
    DefaultLanguage de
    Printcap /etc/printcap
    PrintcapFormat BSD
    RemoteRoot remroot
    SystemGroup sys root
    ServerCertificate /etc/cups/ssl/server.crt
    ServerKey /etc/cups/ssl/server.key
    <Location />
    #Encryption IfRequested
    #Satisfy All
    Order deny,allow
    Deny From All
    Allow From 127.0.0.1
    Allow From 127.0.0.2
    Allow From 192.168.0.*
    </Location>
    <Location /admin>
    Encryption Required
    Satisfy All
    AuthType Basic
    AuthClass System
    Allow From 192.168.0.*
    Order allow,deny
    Deny From All
    </Location>
    <Location /admin/conf>
    Require user @SYSTEM
    Encryption IfRequested
    Satisfy All
    Order allow,deny
    </Location>
    <Location /printers>
    Encryption IfRequested
    Satisfy All
    Order allow,deny
    Allow From 192.168.0.*
    </Location>
    HostnameLookups Off
    KeepAlive On
    KeepAliveTimeout 60
    MaxClients 100
    MaxRequestSize 0m
    Timeout 300
    Listen localhost:631
    Listen /var/run/cups/cups.sock
    AccessLog /var/log/cups/access_log
    ErrorLog /var/log/cups/error_log
    PageLog /var/log/cups/page_log
    MaxLogSize 1m
    LogLevel warn
    PreserveJobHistory Off
    MaxJobs 0
    MaxJobsPerPrinter 0
    MaxJobsPerUser 0
    User lp
    Group sys
    RIPCache 8m
    FilterLimit 0
    DataDir /usr/share/cups
    DocumentRoot /usr/share/cups/doc
    RequestRoot /var/spool/cups
    ServerBin /usr/lib/cups
    ServerRoot /etc/cups
    TempDir /var/spool/cups/tmp
    Browsing Off
    BrowseProtocols CUPS
    BrowsePort 631
    BrowseInterval 30
    BrowseTimeout 300
    BrowseAllow all
    BrowseOrder allow,deny
    ImplicitClasses On
    ImplicitAnyClasses Off
    HideImplicitMembers Yes
    BrowseShortNames Yes
    RootCertDuration 0
    # Unknown
    defaultauthtype Basic
    <policy default>
    <limit Send-Document Send-URI Hold-Job Release-Job Restart-Job Purge-Jobs Set-Job-Attributes Create-Job-Subscription Renew-Subscription Cancel-Subscription Get-Notifications Reprocess-Job Cancel-Current-Job Suspend-Current-Job Resume-Job CUPS-Move-Job>
    require user @OWNER @SYSTEM
    order deny,allow
    </limit>
    <limit CUPS-Add-Modify-Printer CUPS-Delete-Printer CUPS-Add-Modify-Class CUPS-Delete-Class CUPS-Set-Default>
    authtype Default
    require user @SYSTEM
    order deny,allow
    </limit>
    <limit Pause-Printer Resume-Printer Enable-Printer Disable-Printer Pause-Printer-After-Current-Job Hold-New-Jobs Release-Held-New-Jobs Deactivate-Printer Activate-Printer Restart-Printer Shutdown-Printer Startup-Printer Promote-Job Schedule-Job-After CUPS-Accept-Jobs CUPS-Reject-Jobs>
    authtype Default
    require user @SYSTEM
    order deny,allow
    </limit>
    <limit Cancel-Job CUPS-Authenticate-Job>
    require user @OWNER @SYSTEM
    order deny,allow
    </limit>
    <limit All>
    order deny,allow
    </limit>
    </policy>
    Here some registry-keys from the WinXP-client
    requiresignorseal=0
    requirestrongkey=0
    sealsecurechannel=1
    signsecurechannel=1

    How can we solve the problem?

  2. #2
    pmodzel NNTP User

    Default Re: slow print via Samba and Cups

    Hi
    I have the same problem and I think this is problem with samba 3.2.0 because when I downgrade samba to 3.0.28 everything work well
    I posted here: samba problem after upgrade to opensuse 11 - openSUSE Forums
    On samba 3.2.0 same files are quick printing and same like pdf very slow. An exploring folder inside is quick but when you go back up all is slow and winxp frozen. On vista works all well. This is only problem with winxp.

    Piotr

  3. #3
    sluser NNTP User

    Default Re: slow print via Samba and Cups

    Hello,

    thanks Piotr for your information. After we install the new OpenSuSE-Samba-Version 3.2.0-37.1 without success we decide to make a downgrade to version 3.0.28-1.1 - with success. The steps:
    - stop Samba (rcnmb stop, rcsmb stop)
    - make a copy of directory /etc/samba (backup, especially smb.conf, smbpasswd, smbuser)
    - copy the following pakets in a directoy to the server and make a entry in Yast that these directory is a installsource:
    + dmapi-2.2.8-22.i586.rpm (libdm.so.0 needed)
    + cifs-mount-3.0.28-1.1.i586.rpm
    + libsmbclient0-3.0.28-1.1.i586.rpm
    + libsmbsharemodes-3.0.28-1.1.i586.rpm (may be unsused)
    + samba-krb-printing-3.0.28-1.1.i586.rpm
    + samba-client-3.0.28-1.1.i586.rpm
    + samba-3.0.28-1.1.i586.rpm
    + samba-vscan-0.3.6b-1.1.i586.rpm (if vscan used in Samba)
    - install these packages
    --> attention: look in Yast, that really version 3.0.28 installed and not the standardversion 3.2.0-22.1.
    If not, then mark in Yast-->softwareinstall-->Samba-->versions--> 3.0.28 instead of 3.2.0
    - copy /etc/samba (backup of the originals from 3.0.28)
    - copy back the old files /etc/samba/ version 3.2.0 in /etc/samba (especially smb.conf, smbpasswd, smbuser)
    - start Samba (rcsmb start, rcnmb start)
    It works immediatety without any changes on smb.conf or cups.
    I think its a bug in the Samba-version 3.2.0 (new function "Encrypted network transport" see Samba Team Releases Samba 3.2) or WinXP works annother way then it should be.

    Jrn

  4. #4
    sluser NNTP User

    Default Solved: slow print via Samba and Cups

    Hello,

    there is a new Samba-release 3.2.3. Since 3.2.2 the problem of timeouts during access from WinXP to Samba-shares is solved (read release-notes 3.2.2). Since we install 3.2.3-1.128 everything works fine. Printing from Win98/WinXP is fast without timeouts . I recommend everybody to install version 3.2.3 and not make a downgrade to 3.0.28.

    Jrn
    Last edited by sluser; 28-Aug-2008 at 08:14. Reason: Solved

  5. #5
    PV NNTP User

    Default Re: slow print via Samba and Cups

    sluser wrote:

    >
    > Hello,
    >
    > there is a new Samba-release 3.2.3. Since 3.2.2 the problem of timeouts
    > during access from WinXP to Samba-shares is solved (read release-notes
    > 3.2.2). Since we install 3.2.3-1.128 everything works fine. Printing
    > from Win98/WinXP is fast without timeouts . I recommend everybody to
    > install version 3.2.3 and not make a downgrade to 3.0.28.

    <snip>
    >

    Thanks for the heads up; I had not expected 3.2.3 for a few more weeks.
    --
    P. V.
    Cogito cogito ergo cogito sum.

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