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CentOS4 u4 - Dell PE 1950 - SAN/NAS High Load
by Tom Brown 25 Sep '06

25 Sep '06

Hi I have a pair of 1950's running as a failover pair of front ends for a Fibre array and a SCSI array. i am currently just running on the SCSI array and the fibre is not in production yet. I am seeing load on the active node sit at around 8 and throughput to the SCSI array is around 25MB/s - I would imagine i should see better figures that this and less machine load. Can anyone give any pointers as to where to start looking to pinpoint this issue? A vmstat gives me.. [root@xxxxxxxx02 ~]# vmstat 5 procs -----------memory---------- ---swap-- -----io---- --system-- ----cpu---- r b swpd free buff cache si so bi bo in cs us sy id wa 0 1 176 16960 1020 3972300 0 0 719 14298 238 257 0 5 45 50 0 2 176 15616 1028 3973332 0 0 1626 29760 6939 12881 0 5 44 51 1 1 176 15944 1036 3973324 0 0 1674 29721 7063 13055 0 5 44 51 0 2 176 15672 1020 3973340 0 0 1710 29250 7227 13625 1 6 42 51 2 1 176 16200 1036 3973324 0 0 1782 30021 7410 13814 0 5 44 50 0 1 176 16056 1012 3972828 0 0 1596 26716 6747 12627 1 6 43 50 0 1 176 16136 1032 3972808 0 0 1646 29954 7315 13516 0 5 43 52 0 2 176 16120 1032 3973068 0 0 1542 26726 6689 12392 1 6 44 50 0 2 176 16264 1032 3972808 0 0 1590 28283 6991 12668 0 5 45 51 0 2 176 15624 1032 3973328 0 0 1684 27257 6765 12266 0 5 44 50 1 2 176 16072 1028 3973072 0 0 1588 29570 6903 12569 0 5 44 51 0 2 176 15736 1032 3973328 0 0 1664 29286 6908 13007 0 6 43 50 0 2 176 15560 1032 3973588 0 0 1582 29086 6797 12400 0 5 44 51 thanks

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RE: [CentOS] Problem installing Centos on laptop
by Paul Malinowski 25 Sep '06

25 Sep '06

Hello, Try to install centos with minimum of everything (text mode no hardware detection), if it doesn't help trace logs. Last entry in logs before will hangup is most important. Then look on google for solution of that particular problem. Paul -----Original Message----- From: centos-bounces(a)centos.org [mailto:centos-bounces@centos.org] On Behalf Of Mace Eliason Sent: 25 September 2006 15:54 To: 'Centos Mailing list' Subject: [CentOS] Problem installing Centos on laptop Hi, I have been trying to install Centos 4.4 on my laptop with no success. I have just purchased a new Acer 5100 laptop with AMD Turion 64x2 1Gig ram 120Gig HD. I have tried the 64bit and the 32 bit versions but have the same problem with both of them. I can do the complete install but when the computer reboot it will hang on the hardware detection on the network right after where it says Centos 4.4 final. I have let it sit for about 20min and it won't pass that point. I have also tried Fedora code 5 with the same results. Ubuntu 6.06.1 64 bit installs and works fine but will lock up randomly and requires a hard reboot. If anyone has any suggestions I would love to hear them. Thanks Scandog This e-mail and all attachments have been scanned by the HighSpeed Office virus scanning service powered by MessageLabs and no known viruses were detected. This electronic message transmission contains information from Fish4 Trading Limited and/or other Fish4 affiliated companies (specifically Fish4Homes Ltd, Fish4Cars Ltd, Fish4Jobs Ltd and Fish4 Ltd) that may be confidential or privileged. The information is intended solely for the recipient and use by any other party is not authorized. If you are not the intended recipient, be aware that any disclosure, copying, distribution or use of the contents of this electronic message transmission is prohibited. If you have received this electronic message transmission in error, please notify Fish4 immediately by telephone (0208 600 7000) or by electronic mail (administrator(a)fish4.co.uk) Thank you. This e-mail and all attachments have been scanned by the HighSpeed Office virus scanning service powered by MessageLabs and no known viruses were detected.

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Bullet proof cron job???
by Ted Miller 25 Sep '06

25 Sep '06

I have a cron job that runs once a day. There are times when it runs that it disrupts other things on the computer, so I want to kill it. Under Mandriva I had no problems killing the process, and that was the end of that. Under Centos I cannot kill it with a sig 15 or a sig 9. Tonight the process would have trashed hours of work, so after spending two minutes as root trying to kill the process, I ended up killing the entire tree, including crond. Linux is supposed to allow CONTROL of things like this without rebooting, etc, so why can't I kill the process without killing crond? Ted Miller

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Need advice please
by Phil Savoie 24 Sep '06

24 Sep '06

Hi All, I have a system running (home based) Centos latest fully patched, etc that is acting as quasi mail server dhcp and name server. My question deals with mail. This is how it is currently set up. Because I travel for work weeks on end, I have fetchmail on my mail server, set up to poll my isp and download all my mail from work and personal isp. In this way my mail queues at work and personal isp are not piling up. I then use (at home and away) my own email client (kmail) to pop my home server for mail through an ssh tunnel. Does anyone know of a way that I can somehow combine some kind of spam filtering in conjunction with fetchmail on my home mail server so that when I pop it only the spam free email returns to my client? I know that kmail also filters out spam but I would also like a crack at getting some of the spam cleaned out at my mail server end as well. Thanks for your help with this, Phil

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eAccelerator RPM for php5
by John Thomas 23 Sep '06

23 Sep '06

Does anybody know where I can find an RPM of eAccelerator for the php 5.0.4-5 in CentOS Plus REPO? RPMFORGE has an eAccelerator rpm, but for php4. If not, is there an easy/better way to provide php speed up with php5.0.4-5? If not, would it be possible for a rookie, like me, to build an RPM from source? I might take a run at that as a last resort? Any simple howto links would be appreciated (I found and am exploring the ones at wiki.centos.org) Thanks to the CENTOS developers and affiliates for the great software. JT

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postfix problem since update: mail loops back to myself
by thorsten 23 Sep '06

23 Sep '06

Hello I already asked in the IRC, but apart from recommendations reading the mailing lists, nobody could help me. I read all postfix-update related articles but non of them seemed to match or resolve my problem: Everything works fine, apart from one host, which we are doing MX backups for (backupdomain.com) Sep 22 12:18:58 homer postfix/smtp[18784]: 6BD7B1189E4: to=<user(a)backupdomain.com>, relay=none, delay=53, status=bounced (mail for backupdomain.com loops back to myself) Sep 22 12:18:58 homer postfix/cleanup[18791]: B3DD6118A13: message-id=<20060922111858.B3DD6118A13(a)mail.mydomain.com> Sep 22 12:18:58 homer postfix/qmgr[18776]: B3DD6118A13: from=<>, size=2758, nrcpt=1 (queue active) Sep 22 12:18:58 homer postfix/qmgr[18776]: 6BD7B1189E4: removed The backup MX in our domain record for the backupdomain has priority 20, we 10. dig MX mydomain.com mydomain.com. 86400 IN MX 20 mail.backupdomain.com. mydomain.com. 86400 IN MX 10 mail.mydomain.com. postfix's transport_map is configured to use mysql. a postmap -q backupdomain.com mysql:/etc/postfix/sql/transport returns: smtp:mail.backupdomain.com so it was forwarding a message to that domain. That worked fine. After the postfix upgrade, this stopped working. The target the error, I removed the smtp:mail.backupdomain.com entry from the mysql table and also removed the MX entry for the backupdomain, which I was told, could cause problems as well. It still says: mail for backupdomain.com loops back to myself. So, I am wondering, where postfix gets this information from? Can you give me some further advise? thx, thorsten.

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vmware-time update issues and typematic issues
by rado 23 Sep '06

23 Sep '06

wow, I can't really type this in as normal! I'll type it in again but duck! woooooow I caan'''tt rrrrreeeeeaaaalllyyy tttttyppppeeee tthiiiss inn aaaaaaaas noormmmmaaaaaalllll!!!!!! ::sigh:: and I don't even drink! I have read spots where it could be problems w/the kernel and AMD's newer tech "Cool and Quiet". I really dunno which way to take w/this thx John Rose

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EXT3 Problem.
by Gerald 22 Sep '06

22 Sep '06

I'm looking for some recommendations on where to go with a problem i'm running across. A filesystem under load put itself in readonly mode and the following can be found under dmesg.. any suggestions on root cause? hardware wise it's got a pair of PATA drives connected to a 3ware card in RAID10 configuration. EXT3-fs error (device dm-4): ext3_add_entry: bad entry in directory #14370410: rec_len % 4 != 0 - offset=0, inode=1309281588, rec_len=16761, name_len=78 Aborting journal on device dm-4. ext3_abort called. EXT3-fs error (device dm-4): ext3_journal_start_sb: Detected aborted journal Remounting filesystem read-only EXT3-fs error (device dm-4) in start_transaction: Journal has aborted EXT3-fs error (device dm-4) in ext3_create: IO failure __journal_remove_journal_head: freeing b_committed_data __journal_remove_journal_head: freeing b_committed_data

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phpMyAdmin
by Jordi Espasa Clofent 22 Sep '06

22 Sep '06

Hi all, I'm trying to install phpMyAdmin in my CentOS baox but I don't found the package in the default repos. ¿Is this package provided in official CentOS repos? -- Jordi Espasa Clofent PGP id 0xC5ABA76A #http://pgp.mit.edu/ FSF Associate Member id 4281 #http://www.fsf.org/

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RE: [CentOS] Hard drive errors
by Bowie Bailey 22 Sep '06

22 Sep '06

William L. Maltby wrote: > On Fri, 2006-09-22 at 13:06 -0400, Bowie Bailey wrote: > > Cian Cullinan wrote: > > > <snip> > > > The problem does sound external to the disks. Someone else > > suggested the power supply. I wouldn't suspect both cables to have > > problems, so that's probably not an issue. > > Have you looked inside the PS? What you think of a separate cables may > be joined at the base in the PS. And then if one cable has a high > resistance short, it affects voltage on both legs. And if the output > tap feeding those two wires (even separate wires on the same "bus" or > "tap" are "joined at the base" electrically speaking) has a problem > ... it appears on both wires. > > That said, *usually* problems in the wires are "opens" and you just > lose that one "leg". I was actually referring to the SATA cables. I guess my reply got a bit garbled there. One topic at a time... :) I take your point regarding the power supply cables. I'll put the drives on separate legs and see what happens. -- Bowie

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