Discuss November 2006

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253 participants
263 discussions

CUPS disabling a print queue between jobs
by fredex 13 Nov '06

13 Nov '06

Hi! on centos 4.4 (fresh install) I've got a problem with CUPS disabling a print queue between jobs. Sometimes it will print dozens of jobs before disabling the queue, sometimes it will do it after every job. This is a networked HP Laserjet printer at work. At home on a 4.4 box (upgraded from 4.3) with a local (parallel port) printer I've not seen this problem occur. (of course, I don't print as much on the printer at home, either.) I see this bug in the cups bug tracker: http://www.cups.org/str.php?L1648 and it sounds as if it might be the same thing, though it is against cups 1.2, while Centos appears to have 1.1.22. Can anyone shed any light on it, especially how to make it stop happening? Thanks! -- ---- Fred Smith -- fredex(a)fcshome.stoneham.ma.us ----------------------------- "For the word of God is living and active. Sharper than any double-edged sword, it penetrates even to dividing soul and spirit, joints and marrow; it judges the thoughts and attitudes of the heart." ---------------------------- Hebrews 4:12 (niv) ------------------------------

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Server resources consumption prevention
by Abd El-Hameed Ayad 12 Nov '06

12 Nov '06

I have a CentOS 3.8 server which i manage for web hosting (web server, mail server + database server). Today i got it down because of an attack, here is the last snapshot of top command before server dies 09:47:30 up 21 days, 6:54, 1 user, load average: 363.88, 727.82, 253.42 3949 processes: 135 sleeping, 3800 running, 14 zombie, 0 stopped CPU states: cpu user nice system irq softirq iowait idle total 0.6% 0.0% 99.2% 0.0% 0.0% 0.0% 0.0% cpu00 0.4% 0.0% 99.4% 0.0% 0.0% 0.0% 0.0% cpu01 0.8% 0.0% 99.0% 0.0% 0.1% 0.0% 0.0% Mem: 2055236k av, 1935836k used, 119400k free, 0k shrd, 188120k buff 1286892k actv, 165568k in_d, 17336k in_c Swap: 2040244k av, 22676k used, 2017568k free 901000k cached PID USER PRI NI SIZE RSS SHARE STAT %CPU %MEM TIME CPU COMMAND 6515 root 19 0 10048 9.8M 2612 R 3.9 0.4 1:06 1 cpsrvd-ssl 7175 root 18 0 564 564 492 S 2.7 0.0 0:03 0 couriertcpd 10365 nobody 19 0 11020 10M 2352 R 2.5 0.5 0:08 0 httpd 1998 root 19 0 10724 10M 2140 R 2.4 0.5 3:02 1 httpd 10719 mailnull 19 0 1892 1892 1548 R 1.8 0.0 3:49 0 exim 7169 root 19 0 552 552 476 R 1.8 0.0 0:10 1 couriertcpd 29384 manmoud 25 0 380 380 308 R 1.0 0.0 0:01 0 2-4-21 26278 manmoud 24 0 420 420 308 R 0.9 0.0 0:01 1 2-4-21 26519 manmoud 25 0 420 420 308 R 0.9 0.0 0:01 1 2-4-21 26524 manmoud 25 0 424 424 308 R 0.9 0.0 0:01 1 2-4-21 29368 manmoud 25 0 412 412 308 R 0.9 0.0 0:01 1 2-4-21 25916 manmoud 24 0 388 388 308 R 0.8 0.0 0:01 0 2-4-21 25922 manmoud 25 0 388 388 308 R 0.8 0.0 0:01 0 2-4-21 Clearly, the user manmod caused this huge load. Are there any way to prevent such high load caused by any user on the system except root?? thanx

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Server resources consumption prevention
by Abd El-Hameed Ayad 12 Nov '06

12 Nov '06

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Re : Alpha Server 1000A 5/400 Centos 4.3 instalerl can not find the hard drives
by Stewart Walker 12 Nov '06

12 Nov '06

Can any one recommend a raid controller for the above server for centos? -- This message has been scanned for viruses and dangerous content by MailScanner at caspercollege.edu and is believed to be clean.

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Alpha Server 1000A 5/400 Centos 4.3 instal can not find the hard drives.
by Stewart Walker 11 Nov '06

11 Nov '06

During the install of alpha Centos 4.3 I'm told by the Centos installer that the hard drives can not be found. Hard Drives have been properly configured in the ARC setup. ARC initialization of the drives works fine. I can create windows nt partitions Went thru the list of drivers provided by Centos but the installer has already loaded the the QLogic and Mylex DAC960 controller drivers. I opened the box and found the controller is really a Mylex controller card . I'm a little confused about the QLogic as it is integrated on the mother board. Something is missing. What? Any help would be greatly appreciated. Thanks Stew swalker(a)caspercollege.edu -- This message has been scanned for viruses and dangerous content by MailScanner at caspercollege.edu and is believed to be clean.

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FW: [tclug-list] Drives Not Recognized on Dell Poweredge 1550 CentOs install
by Phillip Crump 11 Nov '06

11 Nov '06

The raid card is an Adaptec 2100S. -----Original Message----- From: Josh Paetzel [mailto:josh@tcbug.org] Sent: Saturday, November 11, 2006 9:35 AM To: tclug-list(a)mn-linux.org; pjcrump(a)bitstream.net Subject: Re: [tclug-list] Drives Not Recognized on Dell Poweredge 1550 CentOs install On Saturday 11 November 2006 01:20, Phillip Crump wrote: > I have a new (used)Dell Poweredge 1550 server with 2 scsi drives > (dual 1ghz w/ 2048MB) that I'm attempting to install CentOs 4 onto > and am having problems getting the darn thing to recognize the hard > drives. (it's worth noting that it's running RAID 0 and the RAID > bios recognizes both drives as being in "optimal" state). I start > the > installation process and all is going well until it autoprobes. All > other hardware is found > except for the hard drives. The install subsequently fails because > there the drives can't be found. > > I have been googling my brain out over the last week and this seems > to be an issue with installing linux > on this particular server model. (surrounding the megaraid driver > and have tried many of the > things out there to no avail. > > To see what I have been trying checkout this mailing list entry: > http://lists.centos.org/pipermail/centos/2005-August/010021.html > > Any advice that anyone can give is appreciated! > > P.S. I have tried to install Debian, Mandrake and FC6 to no avail. > > > PJ If memory serves there were a few different RAID controllers available for the 1550. Since you don't mention which controller yours has it's only possible to offer suggestions. One possibility is that there simply isn't a linux driver for it, in which case it isn't going to matter which distro you try to install on it. It's just not going to work. Another option that you may have is that some of the RAID controllers that Dell used (the PERC/3's come to mind) had the ability to emulate a plain SCSI controller. This was generally togglable in the BIOS. If yours has this option it's possible that it will emulate something that there is a driver for. I have actually run into this before with the PE2450s. In SCSI mode the controller appeared as an adaptec 78xx which had a driver, in RAID mode it was something completely different (what exactly it was escapes me at the moment). -- Thanks, Josh Paetzel

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artsd eating CPU cycles when idle
by Aleksandar Milivojevic 11 Nov '06

11 Nov '06

I've noticed that artsd sometimes eats as much as 20% of CPU when idle. This is on my old laptop (where playing MP3s eats up to 50-60% of CPU). On newer faster processors this would probably go unnoticed (if it eats 20% on Pentium MMX, on Pentium 4 it might be around 1-2% or even lower). Just wondering if anybody else noticed this behaviour?

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CentOS-announce Digest, Vol 21, Issue 7
by centos-announce-request＠centos.org 11 Nov '06

11 Nov '06

Send CentOS-announce mailing list submissions to centos-announce(a)centos.org To subscribe or unsubscribe via the World Wide Web, visit http://lists.centos.org/mailman/listinfo/centos-announce or, via email, send a message with subject or body 'help' to centos-announce-request(a)centos.org You can reach the person managing the list at centos-announce-owner(a)centos.org When replying, please edit your Subject line so it is more specific than "Re: Contents of CentOS-announce digest..." Today's Topics: 1. CESA-2006:0733 Critical CentOS 4 s390(x) firefox - security update (Pasi Pirhonen) 2. CESA-2006:0726 Moderate CentOS 4 s390(x) wireshark - security update (Pasi Pirhonen) ---------------------------------------------------------------------- Message: 1 Date: Fri, 10 Nov 2006 21:15:56 +0200 From: Pasi Pirhonen <upi(a)centos.fi> Subject: [CentOS-announce] CESA-2006:0733 Critical CentOS 4 s390(x) firefox - security update To: centos-announce(a)centos.org Message-ID: <20061110191556.GX30294(a)centos.fi> Content-Type: text/plain; charset="us-ascii" CentOS Errata and Security Advisory 2006:0733 https://rhn.redhat.com/errata/RHSA-2006-0733.html The following updated files have been uploaded and are currently syncing to the mirrors: s390: updates/s390/RPMS/firefox-1.5.0.8-0.1.el4.centos4.s390.rpm s390x: updates/s390x/RPMS/firefox-1.5.0.8-0.1.el4.centos4.s390x.rpm -- Pasi Pirhonen - upi(a)iki.fi - http://pasi.pirhonen.eu/ Top-postings silently ignored

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Drives Not Recognized on Dell Poweredge 1550 CentOs4 install
by Phillip Crump 11 Nov '06

11 Nov '06

I have a new (used)Dell Poweredge 1550 server with 2 scsi drives (dual 1ghz w/ 2048MB) that I'm attempting to install CentOs 4 onto and am having problems getting the darn thing to recognize the hard drives. (it's worth noting that it's running RAID 0 and the RAID bios recognizes both drives as being in "optimal" state). I start the installation process and all is going well until it autoprobes. All other hardware is found except for the hard drives. The install subsequently fails because there the drives can't be found. I have been googling my brain out over the last week and this seems to be an issue with installing linux on this particular server model. (surrounding the megaraid driver and have tried many of the things out there to no avail. To see what I have been trying checkout this mailing list entry: http://lists.centos.org/pipermail/centos/2005-August/010021.html Any advice that anyone can give is appreciated! PJ

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hdparm equivalent for SATA
by Jerry Geis 11 Nov '06

11 Nov '06

Hi, I was wanting to run the equivalent of "hdparm -Tt /dev/hda" except on a SATA hard disk. What is the equivalent command for an SATA drive? I was wanting to see what kind of speed I am getting on the SATA drive. thanks, Jerry

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Discuss November 2006