Hi,
> > since initially it seems like the high load may be due to I/O wait
> Maybe this will help you to identify the IO loading process:
>
> http://dag.wieers.com/blog/red-hat-backported-io-accounting-to-rhel5
Thanks for the suggestion, I did install dstat earlier while trying to
figure things
Hi,
> You should also try out "atop" instead of just using top. The major
> advantage is that it gives you more information about the disk and
> network utilization.
Thanks for the tip, I tried it and if the red lines are any
indication, it seems that atop thinks my disks (md raid 1) are the
pr
Hi,
> Dstat could at least tell you if your problem is CPU or I/O.
This was the result of running the following command which I obtained
from reading up about two weeks ago when I started trying to
investigate the abnormal server behaviour.
dstat -c --top-cpu -d --top-bio --top-latency
usr sys
>> Look at the first two columns. What column have higher numbers? If r,
>> you're CPU-bound. If b, you're I/O bound.
>
> procs ---memory-- ---swap-- -io --system--
> -cpu--
> r b swpd free buff cache si sobibo in cs us sy id wa
> st
>
Am Donnerstag, den 31.12.2009, 12:34 +0100 schrieb Chan Chung Hang
Christopher:
> >> Look at the first two columns. What column have higher numbers? If r,
> >> you're CPU-bound. If b, you're I/O bound.
> >
> > procs ---memory-- ---swap-- -io --system--
> > -cpu--
Christoph Maser wrote:
> Am Donnerstag, den 31.12.2009, 12:34 +0100 schrieb Chan Chung Hang
> Christopher:
Look at the first two columns. What column have higher numbers? If r,
you're CPU-bound. If b, you're I/O bound.
>>> procs ---memory-- ---swap-- -io --syste
Hi,
> Yes, these figures indicate that you are fairly close to being cpu bound.
>
> What kind of filtering are you doing? If you have any connection
> tracking/state related rules set, you will need to be using a fair
> amount of cpu.
Initially, when the load start going up, I had thought the APF
> Still no java browser plugin for Centos? I've been reading the web
> all night on this, getting angry. I can't find any explanation about
> why EPEL did have a working browser plugin, but then Centos introduced
> versions of those same packages that had the plugin removed. Not to
> mention the
>> Still no java browser plugin for Centos? I've been reading the web
>> all night on this, getting angry. I can't find any explanation about
>> why EPEL did have a working browser plugin, but then Centos introduced
>> versions of those same packages that had the plugin removed. Not to
>> mentio
> I agree with the original poster. Not having the java plugin is fine on
> servers, but for users here who *do* use it as a desktop, my choices are
> to either not update openjdk or install Sun's Java,
Indeed, installing Sun JDK is an alternative.
I already tried it with the following procedure:
Noob Centos Admin wrote:
> Hi,
>
>> Yes, these figures indicate that you are fairly close to being cpu bound.
>>
>> What kind of filtering are you doing? If you have any connection
>> tracking/state related rules set, you will need to be using a fair
>> amount of cpu.
>
> Initially, when the load
On Thu, Dec 31, 2009 at 11:39:25AM -0400, robert mena wrote:
> Hi,
>
> I lost my mdadm.conf (and /proc/mdadm shows nothing useful) and I'd like to
> mount the filesystem again. So I've booted using rescue but I was wondering
> if I can do a command like this safely (i.e without losing the data
>
Hi,
I lost my mdadm.conf (and /proc/mdadm shows nothing useful) and I'd like to
mount the filesystem again. So I've booted using rescue but I was wondering
if I can do a command like this safely (i.e without losing the data
previously stored).
mdadm -C /dev/md0 --level=raid0 --raid-devices=2 /de
>I've collected an howto somewhere from the 'net:
>
>$ cat docs/sysadm/mdadm_recovery.txt
>
>## define possible devices with arrays
>echo 'DEVICE /dev/hd[a-l]* /dev/sd[a-l]*' > mdadm.conf
>
>## scan
>mdadm --examine --scan --config=mdadm.conf >> mdadm.conf
>
>## review configuration, copy to /etc
>
Hi,
it worked (kind of). Thanks.
I was able to recreate (the all appear in /proc/mdstat) and in the rescue
I've mounted the /boot which maps to /dev/md0. But I can't mount any other
partition.
they all complain with the same error
mount: Mounting /dev/mdX on /tmp/mountpoint failed: no such file
2009/12/31 Luciano Rocha :
> On Thu, Dec 31, 2009 at 11:39:25AM -0400, robert mena wrote:
>> Hi,
>>
>> I lost my mdadm.conf (and /proc/mdadm shows nothing useful) and I'd like to
>> mount the filesystem again. So I've booted using rescue but I was wondering
>> if I can do a command like this safel
Now you've got your array working give us a fuller picture, how many
hard drives have you got, in what configuration, how many arrays, how
many partitions, what file systems, output of "mount" command, fstab
details etc etc
--
Regards,
James ;)
Jonathan Swift - "May you live every day of your l
On Wed, 2009-12-30 at 17:23 -0800, Corey Chandler wrote:
> William Warren wrote:
> > I have a new client that is running a fedora 4 system. Can i upgrade
> > that box to centos 5 with a reasonable expectation of success or should
> > i just back it up and do it from scratch? Also will the samb
On Thu, Dec 31, 2009 at 12:24:23PM -0400, robert mena wrote:
> Hi,
>
> it worked (kind of). Thanks.
>
> I was able to recreate (the all appear in /proc/mdstat) and in the rescue
> I've mounted the /boot which maps to /dev/md0. But I can't mount any other
> partition.
>
> they all complain with t
On Wed, 2009-12-30 at 20:32 -0500, fred smith wrote:
> On Wed, Dec 09, 2009 at 04:13:04PM +, Lars Hecking wrote:
> >
> > > I tried everything in that post as well, and nothing worked for me.
> > > Finally I found the process I laid out and it worked.
> > >
> > > The link to it is here which
On Thu, Dec 31, 2009 at 04:23:52PM +, Joseph L. Casale wrote:
>
> That's a fairly limited script and out of date, I've never used mknod...
Not all rescue environments have MAKEDEV or have it in $PATH, so this
should always work. ;)
--
lfr
0/0
pgpVfPn6gbK7v.pgp
Description: PGP signature
_
Hi,
Yes.
I have from /devmd0 to /dev/md6 (for some reason it skipped md3).
I do not have the fstab at hand but
/
/boot
and /tmp
each map to a different mdX. I've been able to mount the /boot but no
other.
One thing, besides the /boot all the other are ext4. Could it be a problem
with the re
On Thu, Dec 31, 2009 at 12:38:51PM -0400, robert mena wrote:
> Hi,
>
> Yes.
>
> I have from /devmd0 to /dev/md6 (for some reason it skipped md3).
>
> I do not have the fstab at hand but
> /
> /boot
> and /tmp
>
> each map to a different mdX. I've been able to mount the /boot but no
> other.
>
>Not all rescue environments have MAKEDEV or have it in $PATH, so this should
>always work. ;)
Really, on my hp's as well? I don't have any /dev/hdx or /dev/sdx on the ones
with software raid...
Nothing is easier than simply:
# mdadm --detail --scan --verbose > /etc/mdadm.conf
And that actuall
Dmesg shows (for example when I tried to mount /dev/md2)
ext4-fs: md2 : not marked OK to use with test code
On Thu, Dec 31, 2009 at 12:40 PM, Luciano Rocha wrote:
> On Thu, Dec 31, 2009 at 12:38:51PM -0400, robert mena wrote:
> > Hi,
> >
> > Yes.
> >
> > I have from /devmd0 to /dev/md6 (for som
On Wed, Dec 30, 2009 at 10:28 PM, Thomas Harold wrote:
> Rather off-topic, but I'm looking for IP-based KVMs (~16 ports) that can
> handle both PS/2 and USB hookups on the server side. All of the answers
> over at Slashdot are a few years out of date and it looks like prices on
> KVM head units h
-- Forwarded message --
From: robert mena
Date: 2009/12/31
Subject: Re: [CentOS] Lost mdadm.conf
To: CentOS mailing list
each map to a different mdX. I've been able to mount the /boot but no other.
---
So have you got one RAID0 which is partitioned into /boot, /tmp
Thomas Harold wrote:
> Rather off-topic, but I'm looking for IP-based KVMs (~16 ports) that can
> handle both PS/2 and USB hookups on the server side.
I've been using the AdderView CatX series of IP KVM's for quite a while.
They are very good.
http://www.adder.com/uk/catx-kvm-switches.aspx
Remot
James Bensley wrote:
> 2009/12/31 Luciano Rocha :
>> On Thu, Dec 31, 2009 at 11:39:25AM -0400, robert mena wrote:
>>> Hi,
>>>
>>> I lost my mdadm.conf (and /proc/mdadm shows nothing useful) and I'd like to
>>> mount the filesystem again. So I've booted using rescue but I was wondering
>>> if I can
> Overall using CAT5 is a lot easier, just don't make the mistake of
> thinking that it's ethernet. CAT5 just provides the wires, the
> signaling is proprietary and would probably fry an ethernet port if
> you plugged one in. I suggest using different color cables
> specifically for the KVM conn
i've tried with no luck
the problem is that a back rsync probably caused this.
On Thu, Dec 31, 2009 at 1:04 PM, James Bensley wrote:
> -- Forwarded message --
> From: robert mena
> Date: 2009/12/31
> Subject: Re: [CentOS] Lost mdadm.conf
> To: CentOS mailing list
>
> each map
> That may be true for the solution you know but certainly it is not true
> for many solutions out there. Look for "KVM over IP".
>
> As a quick example, see this page:
>
> http://www.lindy-usa.com/kvm/extenders-listed-by-features/kvm-over-ip/
Miguel,
What you're referring to is accessing the KVM
Hi,
> I do not know about now but I had to unload the modules in question.
> Just clearing the rules was not enough to ensure that the netfilter
> connection tracking modules were not using any cpu at all.
Thanks for pointing this out. Being a noob admin as my pseudonym
states, I'd assumed stoppi
> What you're referring to is accessing the KVM box itself via IP, which
> the Aten does allow. What Aten *also* does is use CAT5 cable to link
> the KVM switch to various adapters which plug into the server(s). It's
> the signalling on those lines that Brian was referring to, not
> remotely acces
I've got aide aide-0.13.1-4.el5 running on a server, and aide
aide-0.13.1-2.0.4.el5 running on a similar server. There appears to have
been a change in the way base directories are being monitored in the two
versions. Both servers are running logical volumes, but it seems to not
matter as I'm r
I initiated services shutdown as previously planned and once the
external services like exim, dovecot, httpd, crond (because it kept
restarting these services), the problem child stood out like a sore
thumb.
There was two exim instances that didn't go away despite service exim
stop. Once I killed
On Thu, Dec 31, 2009 at 8:14 AM, wrote:
>>> Still no java browser plugin for Centos? I've been reading the web
>>> all night on this, getting angry. I can't find any explanation about
>>> why EPEL did have a working browser plugin, but then Centos introduced
>>> versions of those same packages
Thomas Harold wrote:
> Rather off-topic, but I'm looking for IP-based KVMs (~16 ports) that can
> handle both PS/2 and USB hookups on the server side. All of the answers
> over at Slashdot are a few years out of date and it looks like prices on
> KVM head units have dropped a bit over the years
Just an concluding update to anybody who might be interested :)
My apologies for blaming spamassassin in the earlier email. It was
taking so long because of the real problem.
Apparently the odd exim processes that was related to the mail loop
problem I nipped was still the culprit. I had overlook
On Thu, Dec 31, 2009 at 3:11 PM, John R Pierce wrote:
> Thomas Harold wrote:
>> Rather off-topic, but I'm looking for IP-based KVMs (~16 ports) that can
>> handle both PS/2 and USB hookups on the server side. All of the answers
>> over at Slashdot are a few years out of date and it looks like pri
the problem was with the rescue image. i've booted from a new disk with a
regular Os install and managed to mount the raid partitions.
On Thu, Dec 31, 2009 at 12:43 PM, robert mena wrote:
> Dmesg shows (for example when I tried to mount /dev/md2)
>
> ext4-fs: md2 : not marked OK to use with tes
On Thu, 31 Dec 2009, Mathieu Baudier wrote:
> I do believe that with Java now GPL, Linux+Java can be a great platform.
> But there are years of parallel development paths and, if I can put it
> that way, mutual distrust, that need to be overcome.
> So it is still a bit painful (but much much bette
2009/12/31 Brian Mathis :
> I'm using an Avocent DSR1020 and it works just fine.
I'm quite happy with Avocent kit, but haven't tried it from non-IE browsers yet.
Ben
___
CentOS mailing list
CentOS@centos.org
http://lists.centos.org/mailman/listinfo/cent
On 2009-12-31 15:13, Noob Centos Admin wrote:
> Just an concluding update to anybody who might be interested :)
>
> My apologies for blaming spamassassin in the earlier email. It was
> taking so long because of the real problem.
>
> Apparently the odd exim processes that was related to the mail loo
Mathieu Baudier wrote:
>
> I do believe that with Java now GPL, Linux+Java can be a great platform.
> But there are years of parallel development paths and, if I can put it
> that way, mutual distrust, that need to be overcome.
> So it is still a bit painful (but much much better than a few years a
Les Mikesell wrote:
> Given that it could have been trivial to include Sun Java ages ago, or at
> least
> not intentionally break the jpackage installation methods, I think Red Hat
> has
> done more damage to java than any other company and don't see that turning
> around even if they try at t
Hi,
I am trying to use drbd in my centos 5.4 but I keep getting errors.
When I try modprobe -v drbd I receive
insmod /lib/modules/2.6.18-164.el5PAE/extra/drbd/drbd.ko
FATAL: Error inserting drbd
(/lib/modules/2.6.18-164.el5PAE/extra/drbd/drbd.ko): Invalid module format.
The current (running) ke
On Thu, Dec 31, 2009 at 1:45 PM, robert mena wrote:
> Hi,
> I am trying to use drbd in my centos 5.4 but I keep getting errors.
> When I try modprobe -v drbd I receive
> insmod /lib/modules/2.6.18-164.el5PAE/extra/drbd/drbd.ko
> FATAL: Error inserting drbd
> (/lib/modules/2.6.18-164.el5PAE/extra/d
hi all,
I am trying to get lm_sensors to work.
did the yum install lm_sensors
service lm_sensors start
sensor -s
and it says no sensors found.
did lsmod | grep it87 and
it87 57061 0
hwmon_vid 35905 1 it87
hwmon 36553 1 it87
i2c_isa
On Thu, Dec 31, 2009 at 2:04 PM, Jerry Geis wrote:
> hi all,
>
> I am trying to get lm_sensors to work.
>
> did the yum install lm_sensors
> service lm_sensors start
>
> sensor -s
> and it says no sensors found.
>
> did lsmod | grep it87 and
> it87 57061 0
You may want to read
Hi,
My backup server (B) has a /backup/home and I'd like to restore
/backup/home/userX to /home/userX in my server A
I am trying to do with in the server where I want to restore.
rsync -e ssh -avzp -R --exclude "*.journal"
backup_server:/backup/home/userX/ /home/userX
But it is creating a /home
>Hi,
>
>My backup server (B) has a /backup/home and I'd like to restore
>/backup/home/userX to /home/userX in my server A
>
>I am trying to do with in the server where I want to restore.
>
>rsync -e ssh -avzp -R --exclude "*.journal" backup_server:/backup/home/userX/
>/home/userX
>
>But it is cre
Recently I add a debuginfo repo into my /etc/yum.repos.d/
[debuggery]
name=CentOS-$releasever - DebugInfo
baseurl=http://debuginfo.centos.org/$releasever/$basearch/
priority=1
then yum update and list shows
kdiff3.i3860.9.92-14.el5 epel
kding.i386
maybe you can try the old version of loaddap, it depends on libdap
3.6.2, according to their descriptions. Or compile the new libdap
3.9.3 by your own.
Matlab Structs Tool 3.5.2 (28 April 2006)
Binaries
Win32
Win32 package
Mac OS/X
OS/X 10.4(Tiger) package
Intel Mac
Linux
ix
On Thu, Dec 31, 2009 at 04:40:56PM +, Joseph L. Casale wrote:
> >Not all rescue environments have MAKEDEV or have it in $PATH, so this should
> >always work. ;)
>
> Really, on my hp's as well? I don't have any /dev/hdx or /dev/sdx on the ones
> with software raid...
>
> Nothing is easier th
On 12/31/2009 10:41 PM, Akemi Yagi wrote:
> On Thu, Dec 31, 2009 at 2:04 PM, Jerry Geis wrote:
>> hi all,
>>
>> I am trying to get lm_sensors to work.
>>
>> did the yum install lm_sensors
>> service lm_sensors start
>>
>> sensor -s
>> and it says no sensors found.
>>
>> did lsmod | grep it87 and
>
I'm teaching myself about ethernet cards, and found a TLDP page. I have
CentOS 5.3.
In this section:http://tldp.org/HOWTO/Ethernet-HOWTO-2.html#ss2.4
in the 'Driver as module' subsection, regarding PCI cards, it states
that there should be a directory "/lib/modules/`uname -r`/net"
[myko..
On Thu, Dec 31, 2009 at 6:58 PM, Michael Klinosky wrote:
> I'm teaching myself about ethernet cards, and found a TLDP page. I have
> CentOS 5.3.
>
> In this section: http://tldp.org/HOWTO/Ethernet-HOWTO-2.html#ss2.4
> in the 'Driver as module' subsection, regarding PCI cards, it states
> that t
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