Discuss April 2008

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252 participants
275 discussions

load level?
by Jason Pyeron 30 Apr '08

30 Apr '08

I have a server holding a 2.5-4.0 load level consistently, where should I start debugging it? top - 13:32:01 up 167 days, 5:45, 6 users, load average: 2.87, 1.83, 1.51 Tasks: 111 total, 1 running, 110 sleeping, 0 stopped, 0 zombie Cpu(s): 0.0% us, 0.0% sy, 0.2% ni, 99.8% id, 0.0% wa, 0.0% hi, 0.0% si Mem: 895728k total, 871996k used, 23732k free, 190612k buffers Swap: 1802232k total, 216k used, 1802016k free, 63776k cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 1 root 16 0 4756 556 460 S 0 0.1 0:35.34 init 2 root RT 0 0 0 0 S 0 0.0 0:02.83 migration/0 3 root 34 19 0 0 0 S 0 0.0 0:27.27 ksoftirqd/0 4 root RT 0 0 0 0 S 0 0.0 0:05.03 migration/1 5 root 34 19 0 0 0 S 0 0.0 0:22.88 ksoftirqd/1 6 root 5 -10 0 0 0 S 0 0.0 0:03.15 events/0 7 root 5 -10 0 0 0 S 0 0.0 0:01.98 events/1 8 root 5 -10 0 0 0 S 0 0.0 0:00.00 khelper 9 root 5 -10 0 0 0 S 0 0.0 0:00.00 kblockd/0 10 root 5 -10 0 0 0 S 0 0.0 0:00.00 kblockd/1 11 root 15 0 0 0 0 S 0 0.0 0:00.00 khubd 66 root 15 0 0 0 0 S 0 0.0 0:16.14 pdflush 67 root 15 0 0 0 0 S 0 0.0 2:30.44 kswapd0 68 root 15 -10 0 0 0 S 0 0.0 0:00.00 aio/0 69 root 5 -10 0 0 0 S 0 0.0 0:00.00 aio/1 213 root 22 0 0 0 0 S 0 0.0 0:00.00 kseriod 450 root 5 -10 0 0 0 S 0 0.0 0:00.00 ata/0 451 root 5 -10 0 0 0 S 0 0.0 0:00.00 ata/1 452 root 6 -10 0 0 0 S 0 0.0 0:00.00 ata_aux 456 root 15 0 0 0 0 S 0 0.0 0:00.00 scsi_eh_0 457 root 15 0 0 0 0 S 0 0.0 0:00.00 scsi_eh_1 465 root 15 0 0 0 0 S 0 0.0 0:00.00 scsi_eh_2 466 root 15 0 0 0 0 S 0 0.0 0:00.00 scsi_eh_3 494 root 15 0 0 0 0 S 0 0.0 4:03.36 kjournald 542 root 16 0 24192 596 416 S 0 0.1 0:36.55 ypbind 595 root 15 0 0 0 0 S 0 0.0 0:00.00 rpciod 596 root 18 0 0 0 0 S 0 0.0 0:00.00 lockd 775 apache 15 0 185m 40m 3628 S 0 4.6 0:00.59 httpd 1832 root 5 -10 0 0 0 S 0 0.0 0:00.00 kedac 1904 root 16 0 10828 1072 856 S 0 0.1 0:00.00 pppd 1973 root 6 -10 0 0 0 S 0 0.0 0:00.00 kauditd 1998 root 20 0 0 0 0 S 0 0.0 0:00.00 scsi_eh_4 1999 root 15 0 0 0 0 S 0 0.0 3:10.72 usb-storage 2176 root 15 0 0 0 0 S 0 0.0 0:00.01 kjournald 3070 root 15 0 3632 552 440 S 0 0.1 1:08.11 syslogd 3074 root 15 0 2540 372 296 S 0 0.0 0:00.04 klogd 3087 root 16 0 2552 300 200 S 0 0.0 0:30.06 irqbalance 3155 root 15 0 2916 488 256 S 0 0.1 0:00.97 smartd 3215 root 15 0 8716 776 612 S 0 0.1 0:00.00 xinetd 3293 root 16 0 40836 2672 984 S 0 0.3 1:07.23 sendmail 3303 smmsp 16 0 33504 2108 812 S 0 0.2 0:00.99 sendmail 3313 root 16 0 4180 324 244 S 0 0.0 0:00.00 gpm 3323 root 16 0 175m 35m 9064 S 0 4.0 0:13.24 httpd 3332 root 16 0 57092 976 560 S 0 0.1 0:50.01 crond 3353 xfs 16 0 10020 1472 756 S 0 0.2 0:00.17 xfs -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- - - - Jason Pyeron PD Inc. http://www.pdinc.us - - Principal Consultant 10 West 24th Street #100 - - +1 (443) 269-1555 x333 Baltimore, Maryland 21218 - - - -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- This message is for the designated recipient only and may contain privileged, proprietary, or otherwise private information. If you have received it in error, purge the message from your system and notify the sender immediately. Any other use of the email by you is prohibited.

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Re: [CentOS] DVD reader: Hardware problem or OS glitch?
by Lanny Marcus 30 Apr '08

30 Apr '08

On 29 April 2008, Alan Bartlett ajb.stxsl at googlemail.com wrote <snip> > > ______________________________________________________________________ > 2008/4/29 Lanny Marcus <lannyma at gmail.com>: > > > [root at dell1602 ~]# grep ^hdc /var/log/dmesg > > hdc: DV-516D, ATAPI CD/DVD-ROM drive > > hdc: ATAPI 50X DVD-ROM drive, 256kB Cache, UDMA(100) > > [root at dell1602 ~]# > > > Good(-ish). The optical device is there but it's an old combo CD/DVD-ROM > drive. > > > > >Then looked at the symbolic links? ls -l /dev/ | grep hdc > > > > [root at dell1602 ~]# ls -l /dev/ | grep hdc > > lrwxrwxrwx 1 root root 3 Apr 29 12:30 cdrom-hdc -> hdc > > lrwxrwxrwx 1 root root 3 Apr 29 12:30 dvd -> hdc > > lrwxrwxrwx 1 root root 3 Apr 29 12:30 dvd-hdc -> hdc > > brw------- 1 lanny disk 22, 0 Apr 29 12:30 hdc > > [root at dell1602 ~]# > > > Good. That's o.k. also. > > > > > > I just updated the hal rpm on the box with the problem and I did a > > restart of the box after that. > > > > hald (pid 2069) is running... > > > Good, again. > > > > >I don't know if this will be any use - > > >http://wiki.centos.org/TipsAndTricks/HAL > > > > Alan: I will check that out! Thanks much! Lanny > > > > > Did I see that you are still running a very out of date kernel? Of the > 2.6.18-8.m.n series? Any particular reason? We didn't have ADSL before and I have been selectively updating rpms. That box is now running kernel 2.6.18-53.1.14.el5 :-) The problem still exists, after the kernel update, and as someone else suggested, I will probably post on the GNOME list for any ideas someone there might have. Neither of the GNOME modules mentioned in the TipsAndTricks/HAL article that you mentioned above are available for update: (a) gnome-volume-manager and (b) gnome-mount When I updated the kernel, I also updated hwdata and kudzu. If we knew what is causing this to happen, there could be a fix, but it remains a mystery. Thanks much! Lanny

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Re: [CentOS] Slightly OT: Extra icons on desktop
by Ross S. W. Walker 30 Apr '08

30 Apr '08

Boot and root should be ok, but misc is probably causing problems with file managers querying fstab and hal. -Ross ----- Original Message ----- From: centos-bounces(a)centos.org <centos-bounces(a)centos.org> To: CentOS mailing list <centos(a)centos.org> Sent: Mon Apr 28 18:30:00 2008 Subject: Re: [CentOS] Slightly OT: Extra icons on desktop On Mon, Apr 28, 2008 at 2:36 PM, Ross S. W. Walker <rwalker(a)medallion.com> wrote: > > tune2fs -L "" /dev/XXX > Thank you! mhr _______________________________________________ CentOS mailing list CentOS(a)centos.org http://lists.centos.org/mailman/listinfo/centos ______________________________________________________________________ This e-mail, and any attachments thereto, is intended only for use by the addressee(s) named herein and may contain legally privileged and/or confidential information. If you are not the intended recipient of this e-mail, you are hereby notified that any dissemination, distribution or copying of this e-mail, and any attachments thereto, is strictly prohibited. If you have received this e-mail in error, please immediately notify the sender and permanently delete the original and any copy or printout thereof.

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RE: [CentOS] DVD reader: Hardware problem or OS glitch?
by Lanny Marcus 29 Apr '08

29 Apr '08

On 29 April 2008, MHR mhullrich at gmail.com wrote: >Tue Apr 29 16:57:24 UTC 2008 >I am unclear on which parts of the above post are yours and which are >from the thread. Sorry! I am making a mess of my posts. >Can you access the contents of the DVD from a command line at all? If >so, have you tried doing the rpm install from the command line? Yes. I installed the kdeedu RPM awhile ago. Using the command line, I can mount and access the DVD, without any problem. >What make and model of DVD drive is it? I think it is a TEAC drive. Doesn't say on the front panel. >What kind of controller is it >connected to? Have you checked all the cables to make sure that they >are properly connected and the drive has its jumpers in the right >place? It's connected to the EIDE controller on the motherboard. I haven't checked the cables or jumpers, because it is otherwise working OK, in Windoze and from the command line. >I have heard that mixing FC and CentOS rpms is not a good idea, >although IIRC FC6 and CentOS 5 are reasonably close. For sure that is true. Upstream does not include the kdeedu RPM in their distribution, so CentOS doesn't have it and that package is something we use here. I think CentOS5 is based on FC6. That's the only RPM I'm using off the FC6 Install DVD and it works fine on CentOS 5. Thank you Mark! Lanny

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RE: [CentOS] DVD reader: Hardware problem or OS glitch?
by Lanny Marcus 29 Apr '08

29 Apr '08

On 29 April 2008, Alan Bartlett ajb.stxsl at googlemail.com wrote: Tue Apr 29 16:39:45 UTC 2008 <snip> >Having heard my name being mentioned, I'll just say "make the mount point, >then". I.e. mkdir /mnt/media >Have you checked that /dev/hdc is the optical drive? grep ^hdc >/var/log/dmesg [root@dell1602 ~]# grep ^hdc /var/log/dmesg hdc: DV-516D, ATAPI CD/DVD-ROM drive hdc: ATAPI 50X DVD-ROM drive, 256kB Cache, UDMA(100) [root@dell1602 ~]# >Then looked at the symbolic links? ls -l /dev/ | grep hdc [root@dell1602 ~]# ls -l /dev/ | grep hdc lrwxrwxrwx 1 root root 3 Apr 29 12:30 cdrom-hdc -> hdc lrwxrwxrwx 1 root root 3 Apr 29 12:30 dvd -> hdc lrwxrwxrwx 1 root root 3 Apr 29 12:30 dvd-hdc -> hdc brw------- 1 lanny disk 22, 0 Apr 29 12:30 hdc [root@dell1602 ~]# >If the HAL daemon is present and active on the system, inserting a disk into >the drive *should* mount it on an autocreated mount point appropriate for >the type of medium inserted into the drive or the label - if any - that the >disk has been given. I just updated the hal rpm on the box with the problem and I did a restart of the box after that. hald (pid 2069) is running... >I don't know if this will be any use - >http://wiki.centos.org/TipsAndTricks/HAL Alan: I will check that out! Thanks much! Lanny

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Documentation for DNS and BIND
by Niki Kovacs 29 Apr '08

29 Apr '08

Hi, One of the things I have yet to learn is setting up a DNS server with BIND. Can you recommend me some *comprehensive* documentation? I like the sort of documentation that explains things step by step, not too laconically. I don't mind reading hundreds of pages, as long as it's well explained. Consider me a total newbie in that field. Any suggestions? Niki

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Re: [CentOS] DVD reader: Hardware problem or OS glitch?
by Lanny Marcus 29 Apr '08

29 Apr '08

On 29 April 2008, William L. Maltby CentOS4Bill at triad.rr.com wrote: > CentOS] DVD reader: Hardware problem or OS glitch? > William L. Maltby CentOS4Bill at triad.rr.com > Tue Apr 29 16:07:57 UTC 2008 <snip> > > I suspect that somewhere in the auto mount process, it has a problem > > with the HW for the DVD reader for my daughter's box and for the DVD > > reader in Mike's HP box. > > > > When a DVD is inserted into the DVD reader, the DVD shows up on the > > GNOME Desktop, but as if the media is empty. > > I don't know if y'all tried this, or if it will help, but in my > grub.conf (menu.lst) I have this on the kernel line. > > hdc=ide-cd > > Maybe it will help you? Bill: I looked at the /etc/grub.conf file on my box and it does not have that included and it works fine here: kernel /vmlinuz-2.6.18-8.el5 ro root=/dev/VolGroup00/LogVol00 rhgb quiet I also looked at that file on the box with the problem and it doesn't have that included either. I may edit the file and see if including that cures the problem. Currently updating several packages on the box with the problem, including autofs and hal. If that does not help, I just began to think about updating the Kernel, hoping there might be better support for that DVD reader in a newer Kernel. But, I'm not sure if the support for the HW is the problem. I get the Digest version of this ML every morning, but I read your reply on the ML Archives. Thank you! Lanny

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alias for network on centos 4
by Jerry Geis 29 Apr '08

29 Apr '08

I was playing with network alias on centos 4 - i386. When I activated the alias ifconfig showed the correct eth1:0 information However I was not able to ping the address.... Tried service network stop and start still not able to ping the address. After rebooting everything seems to be normal and the alias was available... Only thing in my alias file was: IPADDR=x.y.x.y DEVICE=eth1:0 Is that normal? I would not have thought a reboot would be required for that? Any experiences with alias? After the reboot, I tried the service network stop and start and everything came up just fine after that. Did not have to reboot... Thanks, Jerry

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RE: [CentOS] DVD reader: Hardware problem or OS glitch?
by Lanny Marcus 29 Apr '08

29 Apr '08

On 28 April 2008, Mike Peterson" <mpeterson AT mail.charlesfurniture.com wrote: >Message: 21 >Date: Mon, 28 Apr 2008 17:27:44 -0500 >Subject: RE: [CentOS] DVD reader: Hardware problem or OS glitch? >To: "'CentOS mailing list'" <centos(a)centos.org> >Message-ID: <00c901c8a97f$144a1800$de00000a@ITAW> >I have yet to get a DVD to read in CentOS 5. >I can install from DVD and then reboot and then the DVD drive is no longer >accessible. > It works with several live CD and DVD images with no problems however. >This is on an HP system. >I think it is an OS problem. > I will test in some other systems and let you know my results. Mike: I found a *very* recent thread in the web forum of centos.org <http://www.centos.org/modules/newbb/viewtopic.php?post_id=47249&topic_id=13…> Alan Bartlett wrote to: mkdir /mnt/cdrom and then mount -r -t iso9660 /dev/cdrom /mnt/cdrom Here's the FC6 Install DVD I want to install an RPM from: [root@dell1602 ~]# dir /mnt/cdrom eula.txt RELEASE-NOTES-en_US.html RPM-GPG-KEY-fedora-rawhide Fedora repodata RPM-GPG-KEY-fedora-test fedora.css RPM-GPG-KEY RPM-GPG-KEY-rawhide GPL RPM-GPG-KEY-beta stylesheet-images images RPM-GPG-KEY-fedora TRANS.TBL isolinux RPM-GPG-KEY-fedora-extras README-Accessibility RPM-GPG-KEY-fedora-legacy [root@dell1602 ~]# The contents of the DVD still do not show up if I open the Icon for it on the GNOME Desktop or if I click on "Computer" and then open that drive. Doing that, the media still appears to be empty. Like you, I am now 99.9% sure that this is not a HW problem. I am very puzzled, why this works, without any problems, on 2 of the 3 boxes I did clean installs on, last Thanksgiving weekend and not on this box. Lanny

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RE: [CentOS] DVD reader: Hardware problem or OS glitch?
by Lanny Marcus 29 Apr '08

29 Apr '08

On 27 April 2008, "John" <jses27 at gmail.com> wrote: > Message: 19 > Date: Sun, 27 Apr 2008 23:22:19 -0400 > From: "John" <jses27 AT gmail.com> > Subject: RE: [CentOS] DVD reader: Hardware problem or OS glitch? > Message-ID: <001f01c8a8df$137be840$0700a8c0@ethan27> <snip> > Hmm - do you have one of those disks with the micro-brushes that you > use to clean the lens of a DVD drive? It could be nothing worse than > that. I will look for one of those. Might be worth a try. > I don't know what she used it for under XP, but if it was for reading > commercial disks they are undoubtably easier to read than home-burned > ones, and its possible that the linux driver is not as good either. > OTOH, it could be something quite different :-) Mike Peterson has the same problem on an HP box. Mine is a Dell Dimension 4300. I believe the DVD reader was not installed in the factory and that I installed it, later, but, I'm not positive about that. I also believe that the Dell Dimension 4300 had CentOS 5 on it, before I wiped the HD last Thanksgiving, but, I'm not positive about that. Certainly this was working on that box, when it was mine. My daughter rarely puts removable media into that box and the drive has little use, but, that does not mean that it might not be dirty or faulty. However, the drive seems to work properly, at all times, under Windows XP. That these boxes can boot from the same DVD media, and then not be able to mount the media properly, after the installation is complete, is frustrating. > Did you do a mount /dev/hdc /mnt/media? I tried that but I got this error message: mount point /mnt/media does not exist When I look at the /etc/fstab files in the box with the problem and in my box, they look identical or nearly identical. Where is the configuration file for removable media now? I suspect that somewhere in the auto mount process, it has a problem with the HW for the DVD reader for my daughter's box and for the DVD reader in Mike's HP box. When a DVD is inserted into the DVD reader, the DVD shows up on the GNOME Desktop, but as if the media is empty.

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Discuss April 2008