[CentOS] Removing respawning process from inittab w/o killing it
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Hi list, I need to remove an entry of inittab which is used to (re)spawn a process: mydemon:2345:respawn:/usr/sbin/mydemon >/dev/null 2>&1 So, I would comment out that entry and reload init running ``telinit q''. IIRC, this would lead to the currently running daemon being killed. I don't want to /try/ whether I'm right, as those are production systems. Is there any possibility (given that ``telinit q'' kills the running process) to 'keep the process alive' _and_ reload init? Thanks, Timo -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.5 (GNU/Linux) Comment: Using GnuPG with CentOS - http://enigmail.mozdev.org iD8DBQFLA8Syfg746kcGBOwRAjy1AKCPvwHnMVUwDN+6WDPjHebth7q1owCfUsp5 c7KoNas8jThxoP72c3JzK7Q= =yWef -END PGP SIGNATURE- ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Removing respawning process from inittab w/o killing it
On Wed, 2009-11-18 at 10:56 +0100, Timo Schoeler wrote: > -BEGIN PGP SIGNED MESSAGE- > Hash: SHA1 > > Hi list, > > I need to remove an entry of inittab which is used to (re)spawn a process: > > mydemon:2345:respawn:/usr/sbin/mydemon >/dev/null 2>&1 > > So, I would comment out that entry and reload init running ``telinit > q''. IIRC, this would lead to the currently running daemon being killed. > I don't want to /try/ whether I'm right, as those are production systems. > > Is there any possibility (given that ``telinit q'' kills the running > process) to 'keep the process alive' _and_ reload init? If I understand what "man telinit" intends, it looks like the "-u" or "-U" might do what you want. Test it on some local desktop system since you can't test on your production? -- Bill ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Removing respawning process from inittab w/o killing it
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 thus William L. Maltby spake: | On Wed, 2009-11-18 at 10:56 +0100, Timo Schoeler wrote: |> -BEGIN PGP SIGNED MESSAGE- |> Hash: SHA1 |> |> Hi list, |> |> I need to remove an entry of inittab which is used to (re)spawn a process: |> |> mydemon:2345:respawn:/usr/sbin/mydemon >/dev/null 2>&1 |> |> So, I would comment out that entry and reload init running ``telinit |> q''. IIRC, this would lead to the currently running daemon being killed. |> I don't want to /try/ whether I'm right, as those are production systems. |> |> Is there any possibility (given that ``telinit q'' kills the running |> process) to 'keep the process alive' _and_ reload init? | | If I understand what "man telinit" intends, it looks like the "-u" or | "-U" might do what you want. It says: U or u tell init to re-execute itself (preserving the state). No re- examining of /etc/inittab file happens. Run level should be one of Ss12345, otherwise request would be silently ignored. I'll try it; it doesn't seem to touch the running state, however, it also doesn't re-examine /etc/inittab (but that is what I actually want it to do). | Test it on some local desktop system since you can't test on your | production? I prepare an equal setup in VirtualBox, so I can test beforehand. Thanks, Timo -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.5 (GNU/Linux) Comment: Using GnuPG with CentOS - http://enigmail.mozdev.org iD8DBQFLA82Gfg746kcGBOwRAvfTAKCuR7kRudvHBIW9RK8feUyPfzeHKACfYkDQ dw+tPHPTJYm9jknewFXaMGU= =VUGF -END PGP SIGNATURE- ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Removing respawning process from inittab w/o killing it
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 thus Timo Schoeler spake: | thus William L. Maltby spake: | | On Wed, 2009-11-18 at 10:56 +0100, Timo Schoeler wrote: | |> -BEGIN PGP SIGNED MESSAGE- | |> Hash: SHA1 | |> | |> Hi list, | |> | |> I need to remove an entry of inittab which is used to (re)spawn a | process: | |> | |> mydemon:2345:respawn:/usr/sbin/mydemon >/dev/null 2>&1 | |> | |> So, I would comment out that entry and reload init running ``telinit | |> q''. IIRC, this would lead to the currently running daemon being killed. | |> I don't want to /try/ whether I'm right, as those are production systems. | |> | |> Is there any possibility (given that ``telinit q'' kills the running | |> process) to 'keep the process alive' _and_ reload init? | | | | If I understand what "man telinit" intends, it looks like the "-u" or | | "-U" might do what you want. | | It says: | | U or u tell init to re-execute itself (preserving the state). No re- | examining of /etc/inittab file happens. Run level should be one | of Ss12345, otherwise request would be silently ignored. | | I'll try it; it doesn't seem to touch the running state, however, it | also doesn't re-examine /etc/inittab (but that is what I actually want | it to do). Just tried it: Seems to work that way. Thanks again! | | Test it on some local desktop system since you can't test on your | | production? | | I prepare an equal setup in VirtualBox, so I can test beforehand. | | Thanks, | | Timo -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.5 (GNU/Linux) Comment: Using GnuPG with CentOS - http://enigmail.mozdev.org iD8DBQFLA83ffg746kcGBOwRArCcAJ9jzetSjTFkMp5F6wF9BS+/O18I7QCfUqOC L/4TQFyq20zOPF4XSaiX8Fg= =gJyU -END PGP SIGNATURE- ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Inquiry:What is the equivalent of "ping -f -l" on the CentOS server?
Dear All To find the optimum MTU size , on the MS Windows client , we need to try for "C:\ping www.google.com -f -l 1472" and then do for trial and error to find the optimum size . Can you please do me favor and let me know what is the equivalent of "ping -f -l" on the CentOS server ? Let me thank you in advance ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Inquiry:What is the equivalent of "ping -f -l" on the CentOS server?
Quoting hadi motamedi : > Dear All > To find the optimum MTU size , on the MS Windows client , we need to try for > "C:\ping www.google.com -f -l 1472" and then do for trial and error to find > the optimum size . Can you please do me favor and let me know what is the > equivalent of "ping -f -l" on the CentOS server ? > Let me thank you in advance > Please, do not ping flood google! http://en.wikipedia.org/wiki/Ping_flood -- Eero ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Inquiry:What is the equivalent of "ping -f -l" on the CentOS server?
Sorry. It was just an example . I wanted to ask you for the equivalent of "ping -f -l" in its general format . Please help me. On Wed, Nov 18, 2009 at 12:26 PM, Eero Volotinen wrote: > Quoting hadi motamedi : > > Dear All >> To find the optimum MTU size , on the MS Windows client , we need to try >> for >> "C:\ping www.google.com -f -l 1472" and then do for trial and error to >> find >> the optimum size . Can you please do me favor and let me know what is the >> equivalent of "ping -f -l" on the CentOS server ? >> Let me thank you in advance >> >> > Please, do not ping flood google! > > http://en.wikipedia.org/wiki/Ping_flood > > -- > Eero > > ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Inquiry:What is the equivalent of "ping -f -l" on the CentOS server?
Quoting hadi motamedi : > Sorry. It was just an example . I wanted to ask you for the equivalent of > "ping -f -l" in its general format . Please help me. man ping -- Eero ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] OT: Using rdesktop as terminal client to Windows 2008 R2
Hi all,
I am using rdesktop as a terminal client to connect to Windows Terminal
Server
over years without problems until now. I have a problems with five Windows 2008
R2
servers: point cursor turns black when I connect to them. But this problem
disappears if I turn on windows 7 theme on these servers, but performance it is
very
very bad.
This problem only appears with windows 2008 R2 and not on Windows 2008 SP2 or
Windows 2003 R2 servers.
I have tried to add: Option "SWcursor" "true" (nvidia graphics card using
native
nvidia drivers), on my xorg.conf without luck.
My laptop is centOS 5.4 fully updated with rdesktop-1.6.0-3.
Any ideas??
Thanks.
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Re: [CentOS] OT: Using rdesktop as terminal client to Windows 2008 R2
carlopmart wrote: > Hi all, > > I am using rdesktop as a terminal client to connect to Windows Terminal > Server > over years without problems until now. I have a problems with five Windows > 2008 R2 > servers: point cursor turns black when I connect to them. But this problem > disappears if I turn on windows 7 theme on these servers, but performance it > is very > very bad. > > This problem only appears with windows 2008 R2 and not on Windows 2008 SP2 > or > Windows 2003 R2 servers. > > I have tried to add: Option "SWcursor" "true" (nvidia graphics card using > native > nvidia drivers), on my xorg.conf without luck. > > My laptop is centOS 5.4 fully updated with rdesktop-1.6.0-3. > > Any ideas?? > > Thanks. Hi I had the same problem and seems to be the version of rdesktop. I solved compiling the new version (1.6). Regards mg. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] OT: Using rdesktop as terminal client to Windows 2008 R2
Marcelo M. Garcia wrote:
> carlopmart wrote:
>> Hi all,
>>
>> I am using rdesktop as a terminal client to connect to Windows Terminal
>> Server
>> over years without problems until now. I have a problems with five Windows
>> 2008 R2
>> servers: point cursor turns black when I connect to them. But this problem
>> disappears if I turn on windows 7 theme on these servers, but performance it
>> is very
>> very bad.
>>
>> This problem only appears with windows 2008 R2 and not on Windows 2008 SP2
>> or
>> Windows 2003 R2 servers.
>>
>> I have tried to add: Option "SWcursor" "true" (nvidia graphics card using
>> native
>> nvidia drivers), on my xorg.conf without luck.
>>
>> My laptop is centOS 5.4 fully updated with rdesktop-1.6.0-3.
>>
>> Any ideas??
>>
>> Thanks.
> Hi
>
> I had the same problem and seems to be the version of rdesktop. I solved
> compiling the new version (1.6).
>
> Regards
>
> mg.
But I am using 1.6 version ...
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Re: [CentOS] How to setup High Availability or Redundancy for CentOS 5.3 with Vicidial and Asterisk?
On Nov 17, 2009, at 9:42 PM, Sam Acosta wrote: > Hello guys, > > We've been having some problem setting up the High Availability for > Vicidial and Asterisk with CentOS 5.3. > > The VoIP quality are degraded and systems becomes so unstable. > > Are there are other better options. Maybe the poor quality is due to network congestion? You didn't say what you were using now for HA. I have heard of people using Xen with PCI pass-through as a way to provide high-availability to Asterisk. Have 2 Xen boxes with identical hardware, but that can be problematic. Probably the best way is to have multiple physical (small 1u boxes) Asterisk gateways and a central Asterisk router in a VM. Each gateway is expendible as long as one remains standing, the router will route calls to the best available gateway. If the router goes down, it can be brought up in another virtual server. Just need to make sure the virtualization technology can handle the throughput with as little additional latency as possible. Xen should be able to as long as you give the domU enough scheduler credits. There are many ways to skin this cat. -Ross ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Inquiry:What is the equivalent of "ping -f -l" on the CentOS server?
hadi motamedi wrote: > Sorry. It was just an example . I wanted to ask you for the equivalent > of "ping -f -l" in its general format . Please help me. The equivalent of "man" is "man", therefore the equivalent of "man ping" is "man ping". That is also the equivalent of "man ping" in the RedHat Linux 7.2 from which you apparently *have* migrated since your initial post here on Sept 12: > Dear All > Can you please do me favor and let me know what are the highlights of > major benefits of CentOS Release 5 (Final) over the RedHat Linux 7.2 > (Enigma) as we are going to migrate to it ? > Thank you in advance > Regards > H.Motamedi ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] format level 3 prompt
On Tue, 17 Nov 2009 22:11:55 -0800, John R Pierce wrote: > Mike - email ignored wrote: >> How do I format the prompt at level 3? One of my accounts has it >> right, but not the other. I guessed that it was in .tcshrc which was >> missing from the bad account so I copied it from the good account, but >> it made no difference. >> >> > depends on what shell you're using bash uses $HOME/.bash_profile Its bash. Following from .bash_profile to .bashrc to /etc/bashrc, and noting that at level 3, $TERM=linux, I should be calling /etc/sysconfig/bash-prompt-default, if I have one, which I don't. But root gets it right, and myUser gets it wrong. cd; grep -i .* shows only the .tcshrc which I should have realized is not the one. So how is root getting it right? Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] format level 3 prompt
> On Tue, 17 Nov 2009 22:11:55 -0800, John R Pierce wrote: > >> Mike - email ignored wrote: >>> How do I format the prompt at level 3? One of my accounts has it >>> right, but not the other. I guessed that it was in .tcshrc which was >>> missing from the bad account so I copied it from the good account, but >>> it made no difference. >>> >>> >> depends on what shell you're using bash uses $HOME/.bash_profile > > Its bash. Following from .bash_profile to .bashrc to /etc/bashrc, > and noting that at level 3, $TERM=linux, I should be calling > /etc/sysconfig/bash-prompt-default, if I have one, which I don't. > > But root gets it right, and myUser gets it wrong. > >cd; grep -i .* > > shows only the .tcshrc which I should have realized is not the one. > So how is root getting it right? Ah! Permission/ownership problem? mark ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] CentOS 5 - VNC Server - Gnome Font Problem - Pango Warning
Hi Guys, > > I am getting a strange font problem (see > http://lh6.ggpht.com/_NirUcVREM8k/SwPNpSUJ2AI/Ago/3eZiO8j2pEg/s640/font-issue.png) > > for a user logging in over VNC Server, I am also logged in over VNC > however I am no experiencing any problems... This was the case on > CentOS 5.3 and on 5.4 (after upgrade). > > I have tried removing the .vnc dir in the users home dir and re > running vncserver so that it recreates it, however the problem > persists... > > I found this in the VNC logs: > > (nautilus:14718): Pango-WARNING **: No builtin or dynamically > loaded modules were found. Pango will not work correctly. > This probably means there was an error in the creation of: > '/etc/pango/pango.modules' > You should create this file by running pango-querymodules. > Fontconfig error: Cannot load default config file > (nautilus:14718): Pango-WARNING **: pango_shape called with bad font, > expect ugly output > (nautilus:14718): Pango-WARNING **: pango_font_get_glyph_extents > called with bad font, expect ugly output > (nautilus:14718): Pango-WARNING **: _pango_cairo_font_install called > with bad font, expect ugly output > Introspect error: Launch helper exited with unknown return code 0 > could not attach to desktop process > > > So naturally I attempted what it suggested, again the problem still > persists. > > Has anyone seen this before, or have any suggestions? > > Thanks in advance! > > KJS > ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Inquiry:What is the equivalent of "ping -f -l" on the CentOS server?
Robert wrote: > > hadi motamedi wrote: >> Sorry. It was just an example . I wanted to ask you for the equivalent >> of "ping -f -l" in its general format . Please help me. > > > The equivalent of "man" is "man", therefore the equivalent of "man ping" > is "man ping". That works for ping, but hasn't been a good generalization since the gnu versions of things started updating only info pages. So, for example, the equivalent of what you'd expect from "man tar" is "info tar". $ man tar |wc -l 457 $ info tar 2>/dev/null |wc -l 1469 -- Les Mikesell lesmikes...@gmail.com ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] format level 3 prompt
On Wed, 18 Nov 2009 08:25:48 -0700, m.roth-x6lchVBUigD1P9xLtpHBDw wrote: [...] > > Ah! Permission/ownership problem? > > mark Good suggestion. I found that for myUser .bashrc had the wrong permissions and .bash_profile was missing! I am sure that this happened because I copied /home/myUser was copied in from backup before the account was created. We won't do that again. But now, I still do not see how the prompt is set since I have no /etc/sysconfig/bash-prompt-default . Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] format level 3 prompt
> On Wed, 18 Nov 2009 08:25:48 -0700, m.roth-x6lchVBUigD1P9xLtpHBDw wrote:
> [...]
>>
>> Ah! Permission/ownership problem?
>>
> Good suggestion. I found that for myUser .bashrc had the wrong
> permissions and .bash_profile was missing! I am sure that this
> happened because I copied /home/myUser was copied in from backup
> before the account was created. We won't do that again.
>
> But now, I still do not see how the prompt is set since I have
> no /etc/sysconfig/bash-prompt-default .
>From the code /etc/bashrc:
<...>
screen)
if [ -e /etc/sysconfig/bash-prompt-screen ]; then
PROMPT_COMMAND=/etc/sysconfig/bash-prompt-screen
else
PROMPT_COMMAND='echo -ne
"\033_${us...@${hostname%%.*}:${PWD/#$HOME/~}"; echo -ne "\033\\"'
fi
;;
<...>
mark
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Re: [CentOS] format level 3 prompt
Mike - email ignored wrote: On Wed, 18 Nov 2009 08:25:48 -0700, m.roth-x6lchVBUigD1P9xLtpHBDw wrote: [...] Ah! Permission/ownership problem? mark Good suggestion. I found that for myUser .bashrc had the wrong permissions and .bash_profile was missing! I am sure that this happened because I copied /home/myUser was copied in from backup before the account was created. We won't do that again. But now, I still do not see how the prompt is set since I have no /etc/sysconfig/bash-prompt-default . Neither do I - just /etc/bashrc Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos <>___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] version pinning with yum
Well, there's a bug in the globbing for the tcsh with 5.4, and my boss has filed a bug report. Meanwhile, I downgraded tcsh on those systems whose users use that as their shell. Until it's resolved, he wants me to pin the version. Googling, I see someone a few years ago, answering someone's question, suggested adding exclude=openoffice* near the top of /etc/yum.conf. I also see, more recently, several additional yum-related rpms, such as yum-versionlock. Will the first solution work (editing yum.conf), and, if so, for tcsh, would I need the asterisk, or would exclude=tcsh work? Alternatively, is that deprecated, and if so, which additional yum-related package is recommended for this? mark ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] version pinning with yum
On Wed, Nov 18, 2009 at 8:33 AM, wrote: > Well, there's a bug in the globbing for the tcsh with 5.4, and my boss has > filed a bug report. Meanwhile, I downgraded tcsh on those systems whose > users use that as their shell. > > Until it's resolved, he wants me to pin the version. Googling, I see > someone a few years ago, answering someone's question, suggested adding > exclude=openoffice* > near the top of /etc/yum.conf. > > I also see, more recently, several additional yum-related rpms, such as > yum-versionlock. > > Will the first solution work (editing yum.conf), and, if so, for tcsh, > would I need the asterisk, or would > exclude=tcsh > work? This should work if you are only wanting to exclude one package. The open office example has the wildcard because it is multiple packages. Haven't used yum-versionlock but it would need to be loaded on all machines to apply the lock. The other method although sometimes outputting more info when doing 'yum update' works as stated. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] version pinning with yum
Larry, Larry wroote: > On Wed, Nov 18, 2009 at 8:33 AM, wrote: >> Well, there's a bug in the globbing for the tcsh with 5.4, and my boss >> has filed a bug report. Meanwhile, I downgraded tcsh on those systems >> whose users use that as their shell. >> >> Until it's resolved, he wants me to pin the version. Googling, I see >> someone a few years ago, answering someone's question, suggested adding >> exclude=openoffice* >> near the top of /etc/yum.conf. >> >> I also see, more recently, several additional yum-related rpms, such as >> yum-versionlock. > This should work if you are only wanting to exclude one package. > The open office example has the wildcard because it is multiple packages. That's what I needed to know, and yup, it's only the one package. Thanks! mark ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] format level 3 prompt
On Wed, 18 Nov 2009 09:22:44 -0700, m.roth-x6lchVBUigD1P9xLtpHBDw wrote:
>> On Wed, 18 Nov 2009 08:25:48 -0700, m.roth-x6lchVBUigD1P9xLtpHBDw
>> wrote: [...]
>>>
>>> Ah! Permission/ownership problem?
>>>
>> Good suggestion. I found that for myUser .bashrc had the wrong
>> permissions and .bash_profile was missing! I am sure that this
>> happened because I copied /home/myUser was copied in from backup before
>> the account was created. We won't do that again.
>>
>> But now, I still do not see how the prompt is set since I have no
>> /etc/sysconfig/bash-prompt-default .
>
>>From the code /etc/bashrc:
> <...>
> screen)
> if [ -e /etc/sysconfig/bash-prompt-screen ]; then
> PROMPT_COMMAND=/etc/sysconfig/bash-prompt-screen
> else
> PROMPT_COMMAND='echo -ne
> "\033_${us...@${hostname%%.*}:${PWD/#$HOME/~}"; echo -ne "\033\\"'
> fi
> ;;
> <...>
>
> mark
Not so. With this debug:
---
echo TERM = $TERM
# are we an interactive shell?
if [ "$PS1" ]; then
case $TERM in
xterm*)
if [ -e /etc/sysconfig/bash-prompt-xterm ]; then
PROMPT_COMMAND=/etc/sysconfig/bash-prompt-xterm
else
PROMPT_COMMAND='echo -ne "\033]0;${us...@${hostname%%.*}:${PWD/#
$HOME/~}"; echo -ne "\007"'
fi
;;
screen)
echo doing screen
if [ -e /etc/sysconfig/bash-prompt-screen ]; then
PROMPT_COMMAND=/etc/sysconfig/bash-prompt-screen
else
PROMPT_COMMAND='echo -ne "\033_${us...@${hostname%%.*}:${PWD/#$HOME/
~}"; echo -ne "\033\\"'
fi
;;
*)
echo doing default
[ -e /etc/sysconfig/bash-prompt-default ] && PROMPT_COMMAND=/etc/
sysconfig/bash-prompt-default
;;
esac
---
I get:
TERM = linux
doing default
The mystery remains.
Mike.
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Re: [CentOS] format level 3 prompt
Mike - email ignored wrote:
> On Wed, 18 Nov 2009 09:22:44 -0700, m.roth-x6lchVBUigD1P9xLtpHBDw wrote:
>
>>> But now, I still do not see how the prompt is set since I have no
>>> /etc/sysconfig/bash-prompt-default .
>>
>> > From the code /etc/bashrc:
>> <...>
>> screen)
>> if [ -e /etc/sysconfig/bash-prompt-screen ]; then
>> PROMPT_COMMAND=/etc/sysconfig/bash-prompt-screen
>> else
>> PROMPT_COMMAND='echo -ne
>> "\033_${us...@${hostname%%.*}:${PWD/#$HOME/~}"; echo -ne "\033\\"'
>> fi
>> ;;
>> <...>
>>
>> mark
>
> Not so. With this debug:
>
> ---
>
> I get:
>
> TERM = linux
> doing default
>
> The mystery remains.
what do you get with these:
echo $PROMPT_COMMAND
echo $PS1
if $PROMPT_COMMAND has a value you could grep for it (or for
PROMPT_COMMAND) in /etc and subdirs, and try to find it?
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Re: [CentOS] format level 3 prompt
> On Wed, 18 Nov 2009 09:22:44 -0700, m.roth-x6lchVBUigD1P9xLtpHBDw wrote:
> Mike wrote:
>>> On Wed, 18 Nov 2009 08:25:48 -0700, m.roth-x6lchVBUigD1P9xLtpHBDw
>>> wrote: [...]
>>> But now, I still do not see how the prompt is set since I have no
>>> /etc/sysconfig/bash-prompt-default .
>>
>>>From the code /etc/bashrc:
>> <...>
>> screen)
>> if [ -e /etc/sysconfig/bash-prompt-screen ]; then
>> PROMPT_COMMAND=/etc/sysconfig/bash-prompt-screen
>> else
>> PROMPT_COMMAND='echo -ne
>> "\033_${us...@${hostname%%.*}:${PWD/#$HOME/~}"; echo -ne "\033\\"'
>> fi
>> ;;
>> <...>
> I get:
>
> TERM = linux
> doing default
>
> The mystery remains.
>
No, we're getting closer. What you need to find out is what's setting TERM
to linux, which is further back than /etc/bashrc. Is the user logging
directly onto the Linux box, or are they from, say, a WinDoze box via
putty, or ...?
mark
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[CentOS] CentOS-announce Digest, Vol 57, Issue 9
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Today's Topics:
1. CESA-2009:1584 Important CentOS 5 i386java-1.6.0-openjdk
Update (Karanbir Singh)
2. CESA-2009:1584 Important CentOS 5 x86_64 java-1.6.0-openjdk
Update (Karanbir Singh)
--
Message: 1
Date: Wed, 18 Nov 2009 10:19:02 +
From: Karanbir Singh
Subject: [CentOS-announce] CESA-2009:1584 Important CentOS 5 i386
java-1.6.0-openjdk Update
To: centos-annou...@centos.org
Message-ID: <20091118101902.ga2...@tantra.karan.org>
Content-Type: text/plain; charset=us-ascii
CentOS Errata and Security Advisory 2009:1584 Important
Upstream details at : https://rhn.redhat.com/errata/RHSA-2009-1584.html
The following updated files have been uploaded and are currently
syncing to the mirrors: ( md5sum Filename )
i386:
161ce7c3a3234e39bb7798902fe90bf0
java-1.6.0-openjdk-1.6.0.0-1.7.b09.el5.i386.rpm
8c1e087409b6e7ca930aac591a7150e8
java-1.6.0-openjdk-demo-1.6.0.0-1.7.b09.el5.i386.rpm
100733463353ee725a2bed10aef6d7ee
java-1.6.0-openjdk-devel-1.6.0.0-1.7.b09.el5.i386.rpm
f23aeacc4ec5e67d03f3f3e531af68eb
java-1.6.0-openjdk-javadoc-1.6.0.0-1.7.b09.el5.i386.rpm
1cf7340c800b65fe132b5d9d136040cb
java-1.6.0-openjdk-src-1.6.0.0-1.7.b09.el5.i386.rpm
Source:
5f29e3911f2fc807cb0de5fdb7137c7f java-1.6.0-openjdk-1.6.0.0-1.7.b09.el5.src.rpm
--
Karanbir Singh
CentOS Project { http://www.centos.org/ }
irc: z00dax, #cen...@irc.freenode.net
--
Message: 2
Date: Wed, 18 Nov 2009 10:19:03 +
From: Karanbir Singh
Subject: [CentOS-announce] CESA-2009:1584 Important CentOS 5 x86_64
java-1.6.0-openjdk Update
To: centos-annou...@centos.org
Message-ID: <20091118101903.ga2...@tantra.karan.org>
Content-Type: text/plain; charset=us-ascii
CentOS Errata and Security Advisory 2009:1584 Important
Upstream details at : https://rhn.redhat.com/errata/RHSA-2009-1584.html
The following updated files have been uploaded and are currently
syncing to the mirrors: ( md5sum Filename )
x86_64:
67b5c789d3cc543a98aece3291cb029f
java-1.6.0-openjdk-1.6.0.0-1.7.b09.el5.x86_64.rpm
026f7aff5a643d5725d20f25a9ae7f20
java-1.6.0-openjdk-demo-1.6.0.0-1.7.b09.el5.x86_64.rpm
af5b9f22a93a31955956419584b04793
java-1.6.0-openjdk-devel-1.6.0.0-1.7.b09.el5.x86_64.rpm
f6f522d7a9a601918eab70f47690ad32
java-1.6.0-openjdk-javadoc-1.6.0.0-1.7.b09.el5.x86_64.rpm
ef539754cd3f506660c5bf800656dd4b
java-1.6.0-openjdk-src-1.6.0.0-1.7.b09.el5.x86_64.rpm
Source:
5f29e3911f2fc807cb0de5fdb7137c7f java-1.6.0-openjdk-1.6.0.0-1.7.b09.el5.src.rpm
--
Karanbir Singh
CentOS Project { http://www.centos.org/ }
irc: z00dax, #cen...@irc.freenode.net
--
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End of CentOS-announce Digest, Vol 57, Issue 9
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Re: [CentOS] format level 3 prompt
Hi,
I'd try this as a quickshot:
find /etc /root /home -type f -exec grep -l PS3 {} \;
than I'd take a closer look at the files that will show up. And I'd
read bash(1) closely to learn which files are being read in which
order and especially when.
If all of the above doesn't lead me anywhere, I'd start poking
around on a mailing list to see if somebody could explain me what's
going on, but maybe that's just me.
Frank.
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Re: [CentOS] format level 3 prompt
On Wed, 18 Nov 2009 17:48:58 +0100, Nicolas Thierry-Mieg wrote: > Mike - email ignored wrote: [...] >> I get: >> >> TERM = linux >> doing default >> >> The mystery remains. > > what do you get with these: > echo $PROMPT_COMMAND > echo $PS1 > > if $PROMPT_COMMAND has a value you could grep for it (or for > PROMPT_COMMAND) in /etc and subdirs, and try to find it? [myu...@mbrc40 ~]$ echo $PROMPT_COMMAND [myu...@mbrc40 ~]$ echo $PS1 [...@\h \W]\$ ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] format level 3 prompt
Mike - email ignored wrote:
> On Wed, 18 Nov 2009 09:22:44 -0700, m.roth-x6lchVBUigD1P9xLtpHBDw wrote:
>
>>> On Wed, 18 Nov 2009 08:25:48 -0700, m.roth-x6lchVBUigD1P9xLtpHBDw
>>> wrote: [...]
Ah! Permission/ownership problem?
>>> Good suggestion. I found that for myUser .bashrc had the wrong
>>> permissions and .bash_profile was missing! I am sure that this
>>> happened because I copied /home/myUser was copied in from backup before
>>> the account was created. We won't do that again.
>>>
>>> But now, I still do not see how the prompt is set since I have no
>>> /etc/sysconfig/bash-prompt-default .
>> >From the code /etc/bashrc:
>> <...>
>> screen)
>> if [ -e /etc/sysconfig/bash-prompt-screen ]; then
>> PROMPT_COMMAND=/etc/sysconfig/bash-prompt-screen
>> else
>> PROMPT_COMMAND='echo -ne
>> "\033_${us...@${hostname%%.*}:${PWD/#$HOME/~}"; echo -ne "\033\\"'
>> fi
>> ;;
>> <...>
>>
>> mark
>
> Not so. With this debug:
>
> ---
>
> echo TERM = $TERM
>
> # are we an interactive shell?
> if [ "$PS1" ]; then
> case $TERM in
>xterm*)
> if [ -e /etc/sysconfig/bash-prompt-xterm ]; then
> PROMPT_COMMAND=/etc/sysconfig/bash-prompt-xterm
> else
> PROMPT_COMMAND='echo -ne "\033]0;${us...@${hostname%%.*}:${PWD/#
> $HOME/~}"; echo -ne "\007"'
> fi
> ;;
>screen)
> echo doing screen
> if [ -e /etc/sysconfig/bash-prompt-screen ]; then
> PROMPT_COMMAND=/etc/sysconfig/bash-prompt-screen
> else
> PROMPT_COMMAND='echo -ne "\033_${us...@${hostname%%.*}:${PWD/#$HOME/
> ~}"; echo -ne "\033\\"'
> fi
> ;;
>*)
> echo doing default
> [ -e /etc/sysconfig/bash-prompt-default ] && PROMPT_COMMAND=/etc/
> sysconfig/bash-prompt-default
>;;
> esac
>
> ---
>
> I get:
>
> TERM = linux
> doing default
>
> The mystery remains.
That looks right for a direct console login. What did you expect to happen?
--
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lesmikes...@gmail.com
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Re: [CentOS] format level 3 prompt
On Wed, 18 Nov 2009 09:50:54 -0700, m.roth-x6lchVBUigD1P9xLtpHBDw wrote: [...] > No, we're getting closer. What you need to find out is what's setting > TERM to linux, which is further back than /etc/bashrc. Is the user > logging directly onto the Linux box, or are they from, say, a WinDoze > box via putty, or ...? > >mark Direct. Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] format level 3 prompt
On Wed, 18 Nov 2009 18:00:25 +0100, Frank.Brodbeck-E4aVwrWTXLGELgA04lAiVw
wrote:
> Hi,
>
> I'd try this as a quickshot:
>
> find /etc /root /home -type f -exec grep -l PS3 {} \;
>
> than I'd take a closer look at the files that will show up. And I'd read
> bash(1) closely to learn which files are being read in which order and
> especially when.
>
> If all of the above doesn't lead me anywhere, I'd start poking around on
> a mailing list to see if somebody could explain me what's going on, but
> maybe that's just me.
>
> Frank.
[r...@mbrc40 ~]# find /etc /root /home -type f -exec grep -l PS3 {} \;
/etc/termcap
/etc/pki/tls/certs/ca-bundle.crt
/etc/alsa/cards/PS3.conf
/root/.ssh/exe/psftp.exe
/root/.ssh/exe/putty.exe
/root/.mozilla/firefox/l2cth6mq.default/Cache/61FD9500d01
/root/nvidia/NVIDIA-Linux-x86-190.42-pkg1.run
[... I removed results in .pan2]
In termcap, it is in a comment.
in ca-bundle.crt, its in the base64 (don't tell anyone)
Nothing else seems relevant.
Mike.
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Re: [CentOS] format level 3 prompt
On Wed, Nov 18, 2009 at 8:48 AM, Nicolas Thierry-Mieg wrote: > what do you get with these: > echo $PROMPT_COMMAND > echo $PS1 Isn't Mike (the OP) asking about PS3 rather than PS1 ? ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Workaround for RH #502499?
On Nov 18, 2009, at 1:57 AM, Mogens Kjaer wrote: > Can you boot with the additional option: > > hda=noprobe Good point. It's an ATA drive, not SATA. Sorry 'bout that. Will give that a try. --Chris ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] php config security concern for c5
>> what in the docs are you reading to indicate forcetype won't work?
>
> http://httpd.apache.org/docs/2.2/mod/core.html#forcetype
> says it works only if given in directory-type context and that's unlikely to
> happen here. You would rather set the FilesMatch global.
i think that directory context is not just , and the text at
the url says the directive may be placed in , , or
which i assume means as well.
> i just
>> put that in to match the addtype clause i removed. i didn't even check to
>> see if the php module sets the type to text/html by default already.
>
> it does, but you can override it. I guess you can*not* override Forcetype,
> which might be a problem. Many PHP outputs will not be text.
i did some more testing and i was able to override the forcetype (if it
truly is working) via header('content-type'), like you'd do for serving
images via php. i guess i haven't tested without forcetype yet...
> I think the AddType can stay there just fine. It's the AddHandler directive
> that creates the problem. And one may rather consider this a bug in httpd.
> AFAIK, the multiple extension handling is mostly there to allow content
> negotiation. If so, then this functionality should be limited to the options
> that are available to content-negotiation in that given configuration - e.g.
> php.en php.es and not to any "unknown" string.
right, the reason is to allow foo.en.html or foo.html.en. i'm not sure i
agree that is good, but for simple text conditionals it is fine. using it
for php is just bad.
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Re: [CentOS] CentOS 5 - VNC Server - Gnome Font Problem - Pango Warning
Kjs wrote on Wed, 18 Nov 2009 15:53:11 +: > > > > > Please put stuff that needs recycling where it belongs. Kai -- Kai Schätzl, Berlin, Germany Get your web at Conactive Internet Services: http://www.conactive.com ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] format level 3 prompt
On Wed, Nov 18, 2009 at 12:19 PM, Bart Schaefer wrote: > Isn't Mike (the OP) asking about PS3 rather than PS1 ? I interpreted his question to be asking about PS1 at runlevel 3, but it was a bit hazy given the terminology used. -- During times of universal deceit, telling the truth becomes a revolutionary act. George Orwell ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] my local mirror stopped working
Hey folks,
I've had a local mirror set up for some time now and it has always
worked, but suddently stopped. I don't think the fact that it
stopped work has anything to do with when I blew away that machine and
changed it from Centos 5.3 to a Fedora Core 11 box. But I'm not sure
how that could make any difference since it is just serving that stuff
over the web. It still works great for Kickstart installs. I still
have a nightly cron job to update from my closest mirror thusly :
rsync -avSHP --delete --exclude "local*" --exclude "isos"
rsync://mirror.csclub.uwaterloo.ca/centos/5.3/
/var/www/html/ks/centos/5.3/
Here is the error I get when trying to run yum now. Note that I check
for the file it is complaining about and it exists but is .gz format
and not .bz2. I guess I could gunzip then bzip to fix the problem?
But I'd really like to understand why this started.
http://yum/ks/centos/5/updates/x86_64/repodata/filelists.sqlite.bz2:
[Errno 14] HTTP Error 404: Not Found
Trying other mirror.
Error: failure: repodata/filelists.sqlite.bz2 from updates: [Errno
256] No more mirrors to try.
As I've reported before to the list, here is how I've set it up :
* On my PC I've created /var/www/html/ks for doing kickstart
installs, and it shows up at http://192.168.0.222/ks/
* the Centos 5.3 DVDs got downloaded - both 32 bit and 64 bit
mkdir /mnt/C5.3_{32,64}
chmod 0777 /mnt/C5.3_{32,64}
mount -ro loop /home/amckay/Desktop/CentOS-5.3-i386-bin-DVD.iso /mnt/C5.3_32
mount -ro loop /home/amckay/Desktop/CentOS-5.3-x86_64-bin-DVD.iso /mnt/C5.3_64
mkdir -p /var/www/html/ks/centos/5.3/{os,updates}/{i386,x86_64}
pushd /var/www/html/ks/centos/
ln -s 5.3 5
popd
rsync -avHPS /mnt/C5.3_64/ /var/www/html/ks/centos/5.3/os/x86_64/
rsync -avHPS /mnt/C5.3_32/ /var/www/html/ks/centos/5.3/os/i386/
rsync -avSHP --delete --exclude "local*" --exclude "isos"
rsync://mirror.csclub.uwaterloo.ca/centos/5.3/
/var/www/html/ks/centos/5.3/
chown -R apache:apache /var/www/html/ks/
And when I do a Kickstart install, it works just fine. AFter the
install in the %post I change the Centos-Base.repo to point to my
local repo thus :
[base]
name=CentOS-$releasever - Base
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os
baseurl=http://yum/ks/centos/$releasever/os/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5
#released updates
[updates]
name=CentOS-$releasever - Updates
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=updates
baseurl=http://yum/ks/centos/$releasever/updates/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5
Note that the name "yum" does properly resolve to my box.
--
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- Michael Pollan, author of "In Defense of Food"
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Re: [CentOS] php config security concern for c5
Joe Pruett wrote on Wed, 18 Nov 2009 09:39:30 -0800 (PST):
> i think that directory context is not just , and the text at
> the url says the directive may be placed in ,
> , or
> which i assume means as well.
Right. I was getting the German version of this page and I swear it didn't
include the thing last time I looked. Now it does. And it looks like it
has been added during the last days as it is still missing an "or".
So, you are right, yes.
> i did some more testing and i was able to override the forcetype (if it
> truly is working) via header('content-type'), like you'd do for serving
> images via php. i guess i haven't tested without forcetype yet...
Thanks for the info. Still, I think you can keep the AddType directive and not
use ForceType because the problem is only the AddHandler directive that
overrides the mime-type for the image.
Kai
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Re: [CentOS] my local mirror stopped working
On Wed, Nov 18, 2009 at 1:24 PM, Alan McKay wrote: > rsync -avSHP --delete --exclude "local*" --exclude "isos" > rsync://mirror.csclub.uwaterloo.ca/centos/5.3/ > /var/www/html/ks/centos/5.3/ This is your issue. Your rsync command calls the minor version specifically, which can be a bad thing. Now that 5.4 has been released, 5.3 is going away, and will be (if it hasn't already) removed from the mirrors. If you're going to call it out specifically by version, you'll want to pay close attention to when the release announcements for new versions come out. -- During times of universal deceit, telling the truth becomes a revolutionary act. George Orwell ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] my local mirror stopped working
> This is your issue. Your rsync command calls the minor version > specifically, which can be a bad thing. Aha - OK. The thing is I want to maintain my 5.3 mirror - I guess it makes sense for me to stop calling rsync for it does it? Since there will be no more updates to it? On my mirror I have 5.3 and 5.4, but my "5" symlink points to 5.3. I guess I should change everything over to include the minor number then? -- “Don't eat anything you've ever seen advertised on TV” - Michael Pollan, author of "In Defense of Food" ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] my local mirror stopped working
Alan McKay wrote: > On my mirror I have 5.3 and 5.4, but my "5" symlink points to 5.3. I > guess I should change everything over to include the minor number > then? > 5 updated is 5.45.3 is a snapshot in time. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] simple NFSv4 setup
I'm trying to setup a simple NFSv4 mount between two x86_64 hosts. On the server, I have this in /etc/exports: /export $CLIENT(ro,fsid=0) /export/qb3 $CLIENT(rw,nohide) ON $CLIENT, I mount via: mount -t nfs4 $SERVER:/qb3 /usr/local/sge62/qb3 However: $ touch /usr/local/sge62/qb3/foo touch: cannot touch `/usr/local/sge62/qb3/foo': Read-only file system I'd really rather not export the pseudo-root read-write, so how do I get this working? Any hints would be appreciated -- thanks. -- Joshua Baker-LePain QB3 Shared Cluster Sysadmin UCSF ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] simple NFSv4 setup
- "Joshua Baker-LePain" wrote: > I'm trying to setup a simple NFSv4 mount between two x86_64 hosts. On > the > server, I have this in /etc/exports: > > /export $CLIENT(ro,fsid=0) > /export/qb3 $CLIENT(rw,nohide) > > ON $CLIENT, I mount via: > > mount -t nfs4 $SERVER:/qb3 /usr/local/sge62/qb3 > > However: > > $ touch /usr/local/sge62/qb3/foo > touch: cannot touch `/usr/local/sge62/qb3/foo': Read-only file system > > I'd really rather not export the pseudo-root read-write, so how do I > get > this working? Any hints would be appreciated -- thanks. > Your export: /export/qb3 $CLIENT(rw,nohide) And your mount: mount -t nfs4 $SERVER:/qb3 /usr/local/sge62/qb3 The remote path is wrong. Either that's a typo or could be the cause of your problem? --Tim ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] simple NFSv4 setup
On Wed, 18 Nov 2009 at 4:05pm, Tim Nelson wrote > - "Joshua Baker-LePain" wrote: >> /export $CLIENT(ro,fsid=0) >> /export/qb3 $CLIENT(rw,nohide) > Your export: > > /export/qb3 $CLIENT(rw,nohide) > > And your mount: > > mount -t nfs4 $SERVER:/qb3 /usr/local/sge62/qb3 > > The remote path is wrong. Either that's a typo or could be the cause of > your problem? No, that's how NFSv4 mounts work -- it's relative to the pseudo-root (the fsid=0 entry) on the server. And the mount succeeds. But it's a read-only mount, where it should be rw. -- Joshua Baker-LePain QB3 Shared Cluster Sysadmin UCSF ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] High load averages with latest kernel and USB drives?
On Tuesday 17 November 2009 15:37:24 Todd Denniston wrote: > Benjamin Smith wrote, On 11/17/2009 01:46 PM: > > See comments below... > > > > On Tuesday 17 November 2009 07:52:01 Todd Denniston wrote: > >> Benjamin Smith wrote, On 11/16/2009 10:56 PM: > >>> I have a 1TB USB drive plugged into a USB2 port that I use to back up > >>> the production drives (which are SCSI). It's working fine, but while > >>> doing backups (hourly) the load average on the server shoots up from > >>> the normal 0.5 - 1.5 or so up to a high between 10 and 30. Strangely, > >>> even though the "load is high" the server is completely responsive, > >>> even the USB drives being accessed are! > >>> > >>> Using top to diagnose, nothing seems to be particularly high! IoWait > >>> seems reasonable (10-30%) and CPUs are 0.5%, Idle is 70-90%. Even > >>> accessing the USB partition while the load is "high" is responsive! > > you might add another field to top while you are watching, Last used cpu > (SMP), i.e., start top > press f > press j > press enter > > this should let you see if your process is bouncing between processors. The process pg_dump is "adhering" fine to processor 1. I see usb-storage bouncing between processors - I've seen it on 3, 4, 7 over perhaps a minute. What could you recommend next? -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Intel i7-940, DX58S0 motherboard, Radeon X1950 Pro video card
This computer is my main desktop machine --- an Intel i7-940 CPU and DX58S0 motherboard with a Radeon X1950 Pro video card. It's currently running Fedora 11 and working just fine. However, I have been slowly moving all of my "computer stuff" off of Fedora and onto Centos, and this (and my Acer Aspire One laptop) are the only Fedora installations that I now have left. Does anyone have any experience with this CPU, motherboard and video card on Centos? This hardware (sound, video, ethernet, what-have-you) works fine on Fedora 11; can I expect it to also work fine with Centos 5.4? The ethernet isn't a big deal because I can easily slap another network card into it, but the rest isn't quite so easy to substitute. -- MELVILLE THEATRE ~ Melville Sask ~ http://www.melvilletheatre.com ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] my local mirror stopped working
On 11/18/2009 08:26 PM, Alan McKay wrote: ... > On my mirror I have 5.3 and 5.4, but my "5" symlink points to 5.3. I > guess I should change everything over to include the minor number > then? If you mirror "5" as well you'll get the symlink change automagically when the minor version number changes. Mogens -- Mogens Kjaer, Carlsberg A/S, Computer Department Gamle Carlsberg Vej 10, DK-2500 Valby, Denmark Phone: +45 33 27 53 25, Mobile: +45 22 12 53 25 Email: m...@crc.dk Homepage: http://www.crc.dk ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] High load averages with latest kernel and USB drives?
Sorry can't suggest much about the usb issue but for such frequent backups, as well as to enable poin-in-time-recovery (PITR) you should consider log archiving. It should also save you heaps of load on cpu, disk, network and postgresql server. -Amos On 11/17/09, Benjamin Smith wrote: > I'm having a server report a high load average when backing up Postgres > database files to an external USB drive. This is driving my loadbalancers > all > out of kilter and causing a large volume of network monitor alerts. > > I have a 1TB USB drive plugged into a USB2 port that I use to back up the > production drives (which are SCSI). It's working fine, but while doing > backups > (hourly) the load average on the server shoots up from the normal 0.5 - 1.5 > or > so up to a high between 10 and 30. Strangely, even though the "load is high" > the server is completely responsive, even the USB drives being accessed are! > > Backup script is really simple, run via cron, pretty much just: > > #! /bin/sh > hour=`date +%k`; > pg_dump mydatabase > /media/backups/mydatabase.$hour.pgsql; > > where /media/backups is the mount point for the USB drive. > > Using top to diagnose, nothing seems to be particularly high! IoWait seems > reasonable (10-30%) and CPUs are 0.5%, Idle is 70-90%. Even accessing the > USB > partition while the load is "high" is responsive! > > I'm guessing that something changed in how load average is counted? > > Server Stats: > Late model 8-way Xeon, SuperMicro brand. > CentOS 4.x / 64 (all updates applied, booted after last kernel update) > Kernel 2.6.9-89.0.16.ELsmp > 4 GB ECC RAM > 300 GB SCSI HDD. > Standard Apache/PHP, Postgres 8.4. > > Any idea how to revert to the old load average tracking behavior short of > using a stale and potentially insecure kernel? > > -- > This message has been scanned for viruses and > dangerous content by MailScanner, and is > believed to be clean. > > ___ > CentOS mailing list > CentOS@centos.org > http://lists.centos.org/mailman/listinfo/centos > ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
