Printer queue problem (LPRng 3.4.2, Samba 1.9.18p4, Solaris 2.5.1/2.6)
Steen Jensen
sj at kom.auc.dk
Wed Apr 15 17:44:00 GMT 1998
I've got the same problem with SysV printing, it goes wrong every time, if
there is more then 12 jobs in the printer queue. I think that Jeremy
Allison is working on a patch (the first one didn't fix it), until it's
fixed you can use something like this in your smb.conf:
lpq command = lpq -P%p | head -12
People on Windows clients can only see the first 12 jobs, but it
saves the server...
BTW, There is no problem with NT 4.0 clients.
Best,
Steen Jensen System & net administrator
--
Aalborg University e-mail: sj at kom.auc.dk
Institute of Electronic Systems
Department of Communication Technology
On Tue, 14 Apr 1998, Owen L. Magee wrote:
mageeol> I've been having a problem with Win95 clients watching a printer
mageeol> queue on the Samba server (called labserv2). labserv2 is a
mageeol> Solaris 2.5.1 machine running samba 1.9.18p4. The printing
mageeol> system is LPRng 3.4.2.
mageeol>
mageeol> A user can watch the printer queue from a Win95 client machine.
mageeol> However, when the printer queue gets backed up (usually about 12
mageeol> jobs), the queue window locks. The corresponding smbd process on
mageeol> labserv2 starts sucking up lots of CPU time. Once you have about
mageeol> 10 clients doing this...well, things start slowing down pretty
mageeol> badly (although, to samba's credit, it is still very usable at a
mageeol> load average of 10 :) .
mageeol>
mageeol> I managed to reproduce this behavior on labserv1, which is
mageeol> currently unused. labserv1 runs Solaris 2.6, samba 1.9.18p4, and
mageeol> LPRng 3.4.5. LPRng is set up so that the printers are served
mageeol> remotely from labserv2. Using a debug level of 10 and a single
mageeol> client watching a busy printer queue, I was able to capture
mageeol> debugging information. At the end of this post is the debugging
mageeol> info that just loops over and over again, as fast as it can, on
mageeol> the spazzed smbd process.
mageeol>
mageeol> As far as I know, I never had this problem with samba 1.9.17p5
mageeol> (and yes, we were using LPRng at the time). This only started
mageeol> happening when I upgraded to samba 1.9.18.
mageeol>
mageeol> Does anybody have any clues?
mageeol>
mageeol> Owen Magee
mageeol> mageeol at mail.auburn.edu
mageeol>
mageeol> -------------------------------------------------------------------------
mageeol>
mageeol> got message type 0x0 of len 0x83
mageeol> 04/03/1998 10:03:43 Transaction 249 of length 135
mageeol> size=131
mageeol> smb_com=0x25
mageeol> smb_rcls=0
mageeol> smb_reh=0
mageeol> smb_err=0
mageeol> smb_flg=0
mageeol> smb_flg2=0
mageeol> smb_tid=68
mageeol> smb_pid=7487
mageeol> smb_uid=100
mageeol> smb_mid=25730
mageeol> smt_wct=14
mageeol> smb_vwv[0]=55 (0x37)
mageeol> smb_vwv[1]=0 (0x0)
mageeol> smb_vwv[2]=6 (0x6)
mageeol> smb_vwv[3]=0 (0x0)
mageeol> smb_vwv[4]=0 (0x0)
mageeol> smb_vwv[5]=0 (0x0)
mageeol> smb_vwv[6]=5000 (0x1388)
mageeol> smb_vwv[7]=0 (0x0)
mageeol> smb_vwv[8]=0 (0x0)
mageeol> smb_vwv[9]=55 (0x37)
mageeol> smb_vwv[10]=76 (0x4C)
mageeol> smb_vwv[11]=0 (0x0)
mageeol> smb_vwv[12]=0 (0x0)
mageeol> smb_vwv[13]=0 (0x0)
mageeol> smb_bcc=68
mageeol> [000] 5C 50 49 50 45 5C 4C 41 4E 4D 41 4E 00 46 00 7A \PIPE\LA NMAN.F.z
mageeol> [010] 57 72 4C 68 00 42 31 33 42 57 57 57 7A 7A 7A 7A WrLh.B13 BWWWzzzz
mageeol> [020] 7A 57 4E 00 50 43 4C 41 42 42 55 53 00 02 00 00 zWN.PCLA BBUS....
mageeol> [030] 00 57 42 32 31 42 42 31 36 42 31 30 7A 57 57 7A .WB21BB1 6B10zWWz
mageeol> [040] 44 44 7A 00 DDz.
mageeol> switch message SMBtrans (pid 3880)
mageeol> Skipping become_user - already user
mageeol> trans <\PIPE\LANMAN> data=0 params=55 setup=0
mageeol> calling named_pipe
mageeol> named pipe command on <LANMAN> name
mageeol> Got API command 70 of form <zWrLh> <B13BWWWzzzzzWN>
mageeol> (tdscnt=0,tpscnt=55,mdrcnt=0
mageeol> ,mprcnt=6)
mageeol> Doing DosPrintQGetInfo
mageeol> PrintQueue uLevel=2 name=PCLABBUS
mageeol> Using cached lpq output
mageeol> QUEUE2: Printer: pclabbus at labserv2
mageeol>
mageeol> QUEUE2: Queue: 13 printable jobs
mageeol>
mageeol> QUEUE2: Server: pid 14995 active
mageeol>
mageeol> QUEUE2: Unspooler: pid 21532 active
mageeol>
mageeol> QUEUE2: Status: printed all 160850 bytes at 10:03:41
mageeol>
mageeol> QUEUE2: Filter_status: ifhp NOTICE - printer status code 10023 -
mageeol> processing job
mageeol> at Apr 3 10:03:36
mageeol>
mageeol> QUEUE2: Rank Owner/ID Class Job Files
mageeol> Size T
mageeol> ime
mageeol>
mageeol> QUEUE2: active kingrod at labserv2+198 A 198 busine.a004i.
mageeol> 160850 0
mageeol> 9:57:55
mageeol>
mageeol> Time reported for job 198 is Fri Apr 3 09:57:55 1998
mageeol> QUEUE2: 2 kingrod at labserv2+218 A 218 busine.a004i.
mageeol> 108888 0
mageeol> 9:58:02
mageeol>
mageeol> Time reported for job 218 is Fri Apr 3 09:58:02 1998
mageeol> QUEUE2: 3 hardidl at labserv2+821 A 821 busine.a0050n
mageeol> 98349 1
mageeol> 0:00:25
mageeol>
mageeol> Time reported for job 821 is Fri Apr 3 10:00:25 1998
mageeol> QUEUE2: 4 brownc6 at labserv2+967 A 967 busine.a0051U
mageeol> 98460 1
mageeol> 0:01:11
mageeol>
mageeol> Time reported for job 967 is Fri Apr 3 10:01:11 1998
mageeol> QUEUE2: 5 adamsj5 at labserv2+993 A 993 busine.a004pz
mageeol> 98819 1
mageeol> 0:01:18
mageeol>
mageeol> Time reported for job 993 is Fri Apr 3 10:01:18 1998
mageeol> QUEUE2: 6 brownc6 at labserv2+054 A 54 busine.a0051U
mageeol> 160483 1
mageeol> 0:01:30
mageeol>
mageeol> Time reported for job 54 is Fri Apr 3 10:01:30 1998
mageeol> QUEUE2: 7 mageeol at labserv1+903 A 903 .bash_profile
mageeol> 2959 10
mageeol> :03:02
mageeol>
mageeol> Time reported for job 903 is Fri Apr 3 10:03:02 1998
mageeol> QUEUE2: 8 mageeol at labserv1+904 A 904 .bash_profile
mageeol> 2959 10
mageeol> :03:04
mageeol>
mageeol> Time reported for job 904 is Fri Apr 3 10:03:04 1998
mageeol> QUEUE2: 9 mageeol at labserv1+905 A 905 .bash_profile
mageeol> 2959 10
mageeol> :03:06
mageeol>
mageeol> Time reported for job 905 is Fri Apr 3 10:03:06 1998
mageeol> QUEUE2: 10 mageeol at labserv1+908 A 908 .bash_profile
mageeol> 2959 10
mageeol> :03:21
mageeol>
mageeol> Time reported for job 908 is Fri Apr 3 10:03:21 1998
mageeol> QUEUE2: 11 mageeol at labserv1+909 A 909 .bash_profile
mageeol> 2959 10
mageeol> :03:22
mageeol>
mageeol> Time reported for job 909 is Fri Apr 3 10:03:22 1998
mageeol> QUEUE2: 12 mageeol at labserv1+914 A 914 .bash_profile
mageeol> 2959 10
mageeol> :03:39
mageeol>
mageeol> Time reported for job 914 is Fri Apr 3 10:03:39 1998
mageeol> QUEUE2: 13 mageeol at labserv1+915 A 915 .bash_profile
mageeol> 2959 10
mageeol> :03:40
mageeol>
mageeol> Time reported for job 915 is Fri Apr 3 10:03:40 1998
mageeol> printqgetinfo: errorcode 2123
mageeol> size=63
mageeol> smb_com=0x25
mageeol> smb_rcls=0
mageeol> smb_reh=0
mageeol> smb_err=0
mageeol> smb_flg=128
mageeol> smb_flg2=1
mageeol> smb_tid=68
mageeol> smb_pid=7487
mageeol> smb_uid=100
mageeol> smb_mid=25730
mageeol> smt_wct=10
mageeol> smb_vwv[0]=6 (0x6)
mageeol> smb_vwv[1]=0 (0x0)
mageeol> smb_vwv[2]=0 (0x0)
mageeol> smb_vwv[3]=6 (0x6)
mageeol> smb_vwv[4]=55 (0x37)
mageeol> smb_vwv[5]=0 (0x0)
mageeol> smb_vwv[6]=0 (0x0)
mageeol> smb_vwv[7]=63 (0x3F)
mageeol> smb_vwv[8]=0 (0x0)
mageeol> smb_vwv[9]=0 (0x0)
mageeol> smb_bcc=8
mageeol> [000] 4B 08 00 00 00 00 00 00 K.......
mageeol> write_socket(6,67)
mageeol> write_socket(6,67) wrote 67
mageeol>
mageeol>
mageeol> ------------------------------
mageeol>
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