Discuss July 2009

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301 participants
277 discussions

Re: [CentOS] My server reboots every hour! Help please! [update]
by Marko Vojinovic 16 Jul '09

16 Jul '09

On Wed, Jul 15, 2009 at 1:16 PM, Marko Vojinovic<vvmarko(a)gmail.com> wrote: > I have a machine here that resets itself every one hour (without my > intention, of course): Ok, there has been some development of the situation. I asked a collegue of mine (who happens to have physical access to the machine) to shut it down and get into the BIOS to check for the "wake on lan" status. He did (it was off) and he left the machine hanging in BIOS for an hour waiting to see if it would restart. It didn't, for two hours. He was also monitoring temerature and voltage and comparing them with two other machines in the room (identical hardware) and nothing seemed out of ordinary. Then he rebooted to CentOS, and since then restarts have not happened for a whole day now: # uptime 16:26:25 up 22:11, 1 user, load average: 0.00, 0.00, 0.00 That means that (a) the problem went away and (b) I am not able to reproduce it. From the logs I read that the resets were happening every 3625 +- 10 seconds, so to speak. The idea of intentionally skewing the system clock and wait for a reaction was my next step, but since it stopped restarting I cannot verify anything now. Since the problem went away, I am moderately happy, so we can drop the thread, and I'll make sure to reopen it if I see it restarting again. Thanks to all for suggestions and help! Best, :-) Marko

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Keep lossing wireless - ipw3945
by Robert Moskowitz 16 Jul '09

16 Jul '09

Sunday I updated my kernel to 128.1.16 (I had to reboot so it was time to update). No problems with wireless in my home. Monday I started traveling to IEEE 802 plenary, and I have lost my wireless numerous times needing to reboot. The symptom is the radio light goes off. Back before the kernel update, this would happen sometimes at home while on battery, and I would just press the capacitor sensor and turn it back on, and I would get my signal back. But so far this week, this has not worked. Nothing. No signal is gotten after turning the radio back on (for whatever reason this system decides to turn it off). I have tried restarting the network and NetworkManager and this has not helped (this use to help in the past when I saw this behaviour). There were some messages during the kernel update as follows: Uninstalling: fuse 2.7.4-1.nodist.rf (2.6.18-128.1.6.el5) (i686) -------- Uninstall Beginning -------- Module: fuse Version: 2.7.4-1.nodist.rf Kernel: 2.6.18-128.1.6.el5 (i686) ------------------------------------- Status: Before uninstall, this module version was ACTIVE on this kernel. Removing any linked weak-modules WARNING: Can't read module /lib/modules/2.6.18-128.1.6.el5/weak-updates/fuse.ko: No such file or directory WARNING: Can't read module /lib/modules/2.6.18-128.1.6.el5/weak-updates/fuse.ko: No such file or directory fuse.ko: - Uninstallation - Deleting from: /lib/modules/2.6.18-128.1.6.el5/extra/ - Original module - No original module was found for this module on this kernel. - Use the dkms install command to reinstall any previous module version. depmod.... DKMS: uninstall Completed. Uninstalling: ipw3945 1.2.1-1.nodist.rf (2.6.18-128.1.6.el5) (i686) Error! The module ipw3945 1.2.1-1.nodist.rf is not currently installed. This module is not currently ACTIVE for kernel 2.6.18-128.1.6.el5 (i686). Cleanup : kernel [6/6] Removed: kernel.i686 0:2.6.18-128.1.6.el5 kernel-devel.i686 0:2.6.18-128.1.6.el5 Installed: kernel.i686 0:2.6.18-128.1.16.el5 kernel-devel.i686 0:2.6.18-128.1.16.el5 Updated: kernel-headers.i386 0:2.6.18-128.1.16.el5 Complete! But despite that unistalling ipw3945 message, wireless worked, or it seemed. I am seeing log messages like: Jul 15 10:35:28 nc2400 kernel: ipw3945: Detected geography ABG (11 802.11bg chan nels, 13 802.11a channels) a lot. When I lost the wireless and tried to restart everything I saw: Jul 15 10:37:27 nc2400 NetworkManager: <WARN> scan_results_cb(): could not get scan results: An error ocurred getting scan results.. I really cannot deal with frequent rebooting. Can someone point me in a direction to fix this?

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Re: [CentOS] Conflicting perl packages?
by Les Bell 16 Jul '09

16 Jul '09

Marko Vojinovic <vvmarko(a)gmail.com> wrote: >> The simple ordinary yum update of CentOS 5.3 spits a bunch of transaction check errors regarding packages perl-IO-Compress-Zlib-2.015-1.el5.rf.noarch and perl-IO-Compress-2.020-1.el5.rf.noarch which is supposed to replace perl-IO-Compress-Base-2.015-1.el5.rf.noarch << I had the same problem on one system, which was niggling at the back of my mind. I fixed it by brute force: rpm -e --nodeps perl-Compress-Zlib perl-IO-Compress-Zlib yum install perl-IO-Compress Ugly, but it works. I also noticed some messages when restarting amavisd-new, relating to error loading optional module . . . DKIM.pm, which *might* be related (hadn't noticed it before, but it was also appearing on another system which didn't have the Zlib errors above). Easily fixed with yum install perl-Mail-DKIM I did this half an hour or so ago, and everything seems to be running smoothly. Filipe Brandenburger <filbranden(a)gmail.com> wrote: >> yum --skip-broken update << I tried that, as well as setting skip_broken in /etc/yun.conf, but the Zlib errors aborted the entire transaction every time, forcing me to update other packages one by one. That's what motivated me to do the hack above. Best, --- Les Bell [http://www.lesbell.com.au] Tel: +61 2 9451 1144

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CentOS/SNMP update breaks MRTG?
by Noob Centos Admin 16 Jul '09

16 Jul '09

I got itchy fingers over the weekend and decided to fix what wasn't broken and upgraded one of the older servers from Centos 5.2 to Centos 5.3. Following the recommended process of updating glibc and such before the rest, it appeared to work perfectly and rebooted without problem. However, MRTG 2.15.2 started complaining about unexpected values. I installed/updated both MRTG (2.16.2) and net-snmp to the latest available in hope of fixing it. Subsequently, MRTG stopped working altogether. I've spent the whole weekend and whole Monday morning trying to fix it and thus far have only finally managed to get garbage values showing up in MRTG again as opposed to nothing. And this required learning about SNMP and adding many additional lines to the original MRTG configuration file, none of which I had to do previously. Did anybody else have similar experiences with MRTG failing after the update and what was the simple fix? It does not make any sense that I have to jump through so much hoops to get just the default functionality back. Thus I believe there must be one small thing I'm overlooking. Thanks for any advice.

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Screensaver (or screen blanking) at login screen - CentOS 5.2 or 5.3
by David Fix 15 Jul '09

15 Jul '09

Hey guys, I've done a ton of googling, searching and asking in the forums, etc, and I haven't found a way to do this... :) I'm trying to find a way of having some type of screen saver at the login screen so that if I leave a machine not logged into, it won't burn-in the screen. Does anyone know of a way to achieve this? In specific, I'd love to have it simply blank the screen and leave the screen on, just black after maybe 5 minutes of inactivity at the login screen. :) Thanks in advance, it's really appreciated! :) Dave

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OT: Web "Project" type software
by James Pifer 15 Jul '09

15 Jul '09

Sorry for the OT... I'm looking for some software to fill a fairly specific set of requirements. I'm not necessarily looking for project software, but it seems like the closest to match what I need. I'm also not tied into open source or free. If anyone knows of any software that might fill these requirements I would appreciate it. Here's what I'm looking for: 1) Web enabled application 2) File storage - need to stare a large amount of large cad files - be able to categorize file storage (not one large list) - keep different revisions of files with some kind of notes - be able to search files (at least include names in a search) 3) Task - assign and keep track of tasks (searchable) 4) Store meeting notes and minutes (searchable) 5) Would like to support LDAP 6) Extension on file storage - since we'll be storing a large files and many of our users are across a WAN we'd like to sync/mirror the files to a few different servers. I'm not sure how we'd control how the users get the "closest" server but.... I found dotproject on sourceforge. It fills some of the needs, but it's file storage appears to be one large list, doesn't appear to support LDAP, and I don't see much for searching. Anyone know of software that might do these things? Thanks, James

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slugishness
by Jerry Geis 15 Jul '09

15 Jul '09

Hi all, I have a 3G AM2 quad core CPU... x86_64 centos 5.3 When I am doing backing up to my external USB drive my system becomes sluggish. Clicking on a thunderbird compose takes some time to pop up the window. Typeing doesnt keep up etc... Is there something I can change so this backup doesnt slow my system down so much? I dont see HOW it can be taking so much CPU. top at times shows 0 idle or 11% idle from a USB backup. Thanks for any suggestions. Jerry

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- OT - VIM - recording
by Ed Donahue 15 Jul '09

15 Jul '09

Is it possible in vim to do the following: Search for this block of data: # Catalog Service 2.0 for uat03 <LocationMatch "^/Services/?"> PathPrepend /inquiryservices Cluster 172.21.1.1:999 </LocationMatch> And change Cluster 172.21.1.1:9999 to Cluster 172.21.1.2:7000 It needs to have uat03 (or 02, 01) on the line and this line 'PathPrepend /inquiryservices' for the Cluster to be changed.

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can't upgrade form 4.6 to 4.7
by Roberto Pereyra 15 Jul '09

15 Jul '09

HI all ! I can't upgrade my 4.6 server to 4.7. I have these error messages: Any help ? Thanks a lot. roberto [root@juzgado ~]# yum clean all Cleaning up Everything 0 headers removed 0 packages removed 15 metadata files removed 0 cache files removed 5 cache files removed [root@juzgado ~]# yum update Setting up Update Process Setting up repositories update 100% |=========================| 951 B 00:00 rpmforge 100% |=========================| 1.1 kB 00:00 base 100% |=========================| 1.1 kB 00:00 addons 100% |=========================| 951 B 00:00 extras 100% |=========================| 1.1 kB 00:00 Reading repository metadata in from local files primary.xml.gz 100% |=========================| 158 kB 00:00 update : ################################################## 511/511 primary.xml.gz 100% |=========================| 4.0 MB 00:28 rpmforge : ################################################## 11191/11191 primary.xml.gz 100% |=========================| 608 kB 00:02 base : ################################################## 1591/1591 primary.xml.gz 100% |=========================| 190 B 00:00 primary.xml.gz 100% |=========================| 38 kB 00:00 extras : ################################################## 172/172 Resolving Dependencies --> Populating transaction set with selected packages. Please wait. ---> Downloading header for crash to pack into transaction set. crash-4.0-5.0.0.1.i386.rp 100% |=========================| 1.4 MB 00:10 http://pubmirrors.reflected.net/centos/4.7/os/i386/CentOS/RPMS/crash-4.0-5.…: [Errno -1] Header is not complete. Trying other mirror. crash-4.0-5.0.0.1.i386.rp 100% |=========================| 1.4 MB 00:38 http://linux.mirrors.es.net/centos/4.7/os/i386/CentOS/RPMS/crash-4.0-5.0.0.…: [Errno -1] Header is not complete. Trying other mirror. crash-4.0-5.0.0.1.i386.rp 100% |=========================| 1.4 MB 00:09 http://centos.pop.com.br/4.7/os/i386/CentOS/RPMS/crash-4.0-5.0.0.1.i386.rpm: [Errno -1] Header is not complete. Trying other mirror. crash-4.0-5.0.0.1.i386.rp 100% |=========================| 1.4 MB 00:07 http://centos.mbni.med.umich.edu/mirror/4.7/os/i386/CentOS/RPMS/crash-4.0-5…: [Errno -1] Header is not complete. -- The best dedicated servers - LiquidWeb http://www.liquidweb.com/?RID=contenid Visit my blog http://www.unixlibre.com.ar

2 8

CPU utils almost 100%
by fabian 15 Jul '09

15 Jul '09

Dear All, I have been using the following for along time but recently i noticed the following Centos 5.2 squid stable 2.6 clamav + havp i do have MRTG running which monitors CPU + bandwith usage of my squid proxy server i notced recently that the cpu utilization peaks to abt 100 % at 4 am every day and becomes normall at 10 am cpu 4.5%us 2.3% sy 0.0%ni 2% id 95% wa notice the 95% wa the only thing that i added was i have a cron job running clamscan at 4 am but initally it was workin without any problem when i run top it show so when i noticed this high cpu utilization i removed the clamscan entry from my crontab file so as to diable it but the problem still persists i wanted to disble all the daily crontab jobs but i jus wanted to know which process could be actually causing this appreciate your advice and help regards fabian -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.

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Discuss July 2009