New Hobbit server install validation
Hi All,
I have a 4.2 install of Hobbit up and running and I am very happy with it. It runs on an old Gateway workstation with a Celeron and 512MB and performs stellar! CentOs 5 nothing fancy. I was going to move it to a more recent piece of hardware a Dell OptiPlex 320, which at least it is under warranty. I had the Idea of running it as a Xen VM on a Debian host. Is this a bad idea?
Clarification of purpose: I'm really not going to run anything else on the Xen except for this one VM and maybe and I mean maybe a test xymon VM directly replicated from the working production VM. This is to provide me with a quick failover ability of copying the image (from backup or if the HD is intact directly from there) to another Xen host and BLAMO xymon is running within minutes.
Does this sound OK? Is there a better way to accomplish this?
Thank you,
Rafal Roginela Network Engineer
AmeriCash Loans, LLC
This e-mail may contain confidential and/or privileged information. If you are not the intended recipient (or have received this e-mail in error) please notify the sender immediately and destroy this e-mail. Any unauthorized copying, disclosure or distribution of the material in this e-mail is strictly forbidden.
I don't see a problem with that, in fact I think it would be a wise idea. Note that anything built on Centos may not work on Debian - I suggest recompiling/installing it on Debian then copying your configuration.
Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373
Those who don't understand UNIX are condemned to reinvent it, poorly. --- Henry Spencer
On Fri, Feb 20, 2009 at 4:30 PM, Rafal Roginela < Rafal.Roginela at americashloans.net> wrote:
Hi All,
I have a 4.2 install of Hobbit up and running and I am very happy with it. It runs on an old Gateway workstation with a Celeron and 512MB and performs stellar! CentOs 5 nothing fancy. I was going to move it to a more recent piece of hardware a Dell OptiPlex 320, which at least it is under warranty. I had the Idea of running it as a Xen VM on a Debian host. Is this a bad idea?
Clarification of purpose: I'm really not going to run anything else on the Xen except for this one VM and maybe and I mean maybe a test xymon VM directly replicated from the working production VM. This is to provide me with a quick failover ability of copying the image (from backup or if the HD is intact directly from there) to another Xen host and BLAMO xymon is running within minutes.
Does this sound OK? Is there a better way to accomplish this?
Thank you,
*Rafal Roginela** *Network Engineer
*AmeriCash Loans, LLC*
This e-mail may contain confidential and/or privileged information. If you are not the intended recipient (or have received this e-mail in error) please notify the sender immediately and destroy this e-mail. Any unauthorized copying, disclosure or distribution of the material in this e-mail is strictly forbidden.
Thank you Josh,
I was actually thinking of upgrading at that point too so re-compile and all that would have to be done.
I'm also thinking of documenting the process to make a install HowTo for noobs like me. Because compiling is only half the story there is the whole process of making users and setting the whole thing to start automatically and all that; may seem like child's play to some but to me I know it will take a bit especially since this will be my first foray into Debian.
Thank You,
Rafal Roginela
Office (847) 827-9740 x109 Fax (847) 493-8031
This e-mail may contain confidential and/or privileged information. If you are not the intended recipient (or have received this e-mail in error) please notify the sender immediately and destroy this e-mail. Any unauthorized copying, disclosure or distribution of the material in this e-mail is strictly forbidden.
From: Josh Luthman [mailto:josh at imaginenetworksllc.com] Sent: Friday, February 20, 2009 3:35 PM To: hobbit at hswn.dk Subject: Re: [hobbit] New Hobbit server install validation
I don't see a problem with that, in fact I think it would be a wise idea. Note that anything built on Centos may not work on Debian - I suggest recompiling/installing it on Debian then copying your configuration.
Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373
Those who don't understand UNIX are condemned to reinvent it, poorly. --- Henry Spencer
On Fri, Feb 20, 2009 at 4:30 PM, Rafal Roginela <Rafal.Roginela at americashloans.net> wrote:
Hi All,
I have a 4.2 install of Hobbit up and running and I am very happy with it. It runs on an old Gateway workstation with a Celeron and 512MB and performs stellar! CentOs 5 nothing fancy. I was going to move it to a more recent piece of hardware a Dell OptiPlex 320, which at least it is under warranty. I had the Idea of running it as a Xen VM on a Debian host. Is this a bad idea?
Clarification of purpose: I'm really not going to run anything else on the Xen except for this one VM and maybe and I mean maybe a test xymon VM directly replicated from the working production VM. This is to provide me with a quick failover ability of copying the image (from backup or if the HD is intact directly from there) to another Xen host and BLAMO xymon is running within minutes.
Does this sound OK? Is there a better way to accomplish this?
Thank you,
Rafal Roginela Network Engineer
AmeriCash Loans, LLC
This e-mail may contain confidential and/or privileged information. If you are not the intended recipient (or have received this e-mail in error) please notify the sender immediately and destroy this e-mail. Any unauthorized copying, disclosure or distribution of the material in this e-mail is strictly forbidden.
Like this?
http://en.wikibooks.org/wiki/System_Monitoring_with_Hobbit/Administration_Gu...
Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373
Those who don't understand UNIX are condemned to reinvent it, poorly. --- Henry Spencer
On Fri, Feb 20, 2009 at 4:48 PM, Rafal Roginela < Rafal.Roginela at americashloans.net> wrote:
Thank you Josh,
I was actually thinking of upgrading at that point too so re-compile and all that would have to be done.
I'm also thinking of documenting the process to make a install HowTo for noobs like me. Because compiling is only half the story there is the whole process of making users and setting the whole thing to start automatically and all that; may seem like child's play to some but to me I know it will take a bit especially since this will be my first foray into Debian.
Thank You,
*Rafal Roginela*
Office (847) 827-9740 x109 Fax (847) 493-8031
This e-mail may contain confidential and/or privileged information. If you are not the intended recipient (or have received this e-mail in error) please notify the sender immediately and destroy this e-mail. Any unauthorized copying, disclosure or distribution of the material in this e-mail is strictly forbidden.
*From:* Josh Luthman [mailto:josh at imaginenetworksllc.com] *Sent:* Friday, February 20, 2009 3:35 PM *To:* hobbit at hswn.dk *Subject:* Re: [hobbit] New Hobbit server install validation
I don't see a problem with that, in fact I think it would be a wise idea. Note that anything built on Centos may not work on Debian - I suggest recompiling/installing it on Debian then copying your configuration.
Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373
Those who don't understand UNIX are condemned to reinvent it, poorly. --- Henry Spencer
On Fri, Feb 20, 2009 at 4:30 PM, Rafal Roginela < Rafal.Roginela at americashloans.net> wrote:
Hi All,
I have a 4.2 install of Hobbit up and running and I am very happy with it. It runs on an old Gateway workstation with a Celeron and 512MB and performs stellar! CentOs 5 nothing fancy. I was going to move it to a more recent piece of hardware a Dell OptiPlex 320, which at least it is under warranty. I had the Idea of running it as a Xen VM on a Debian host. Is this a bad idea?
Clarification of purpose: I'm really not going to run anything else on the Xen except for this one VM and maybe and I mean maybe a test xymon VM directly replicated from the working production VM. This is to provide me with a quick failover ability of copying the image (from backup or if the HD is intact directly from there) to another Xen host and BLAMO xymon is running within minutes.
Does this sound OK? Is there a better way to accomplish this?
Thank you,
*Rafal Roginela *Network Engineer
*AmeriCash Loans, LLC*
This e-mail may contain confidential and/or privileged information. If you are not the intended recipient (or have received this e-mail in error) please notify the sender immediately and destroy this e-mail. Any unauthorized copying, disclosure or distribution of the material in this e-mail is strictly forbidden.
Hi Josh,
Yeah just what I was thinking. Never did see this when I googled when I installed my box.. hmmm.. makes me doubt my googling powers :-) But just like this to chronicle my install since I'm going to do the docs for myself I want to share it.
Thank You,
Rafal Roginela
Office (847) 827-9740 x109 Fax (847) 493-8031
This e-mail may contain confidential and/or privileged information. If you are not the intended recipient (or have received this e-mail in error) please notify the sender immediately and destroy this e-mail. Any unauthorized copying, disclosure or distribution of the material in this e-mail is strictly forbidden.
From: Josh Luthman [mailto:josh at imaginenetworksllc.com] Sent: Friday, February 20, 2009 3:57 PM To: hobbit at hswn.dk Subject: Re: [hobbit] New Hobbit server install validation
Like this?
http://en.wikibooks.org/wiki/System_Monitoring_with_Hobbit/Administratio n_Guide/Compiling_on_CentOS
Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373
Those who don't understand UNIX are condemned to reinvent it, poorly. --- Henry Spencer
On Fri, Feb 20, 2009 at 4:48 PM, Rafal Roginela <Rafal.Roginela at americashloans.net> wrote:
Thank you Josh,
I was actually thinking of upgrading at that point too so re-compile and all that would have to be done.
I'm also thinking of documenting the process to make a install HowTo for noobs like me. Because compiling is only half the story there is the whole process of making users and setting the whole thing to start automatically and all that; may seem like child's play to some but to me I know it will take a bit especially since this will be my first foray into Debian.
Thank You,
Rafal Roginela
Office (847) 827-9740 x109 Fax (847) 493-8031
This e-mail may contain confidential and/or privileged information. If you are not the intended recipient (or have received this e-mail in error) please notify the sender immediately and destroy this e-mail. Any unauthorized copying, disclosure or distribution of the material in this e-mail is strictly forbidden.
From: Josh Luthman [mailto:josh at imaginenetworksllc.com] Sent: Friday, February 20, 2009 3:35 PM To: hobbit at hswn.dk Subject: Re: [hobbit] New Hobbit server install validation
I don't see a problem with that, in fact I think it would be a wise idea. Note that anything built on Centos may not work on Debian - I suggest recompiling/installing it on Debian then copying your configuration.
Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373
Those who don't understand UNIX are condemned to reinvent it, poorly. --- Henry Spencer
On Fri, Feb 20, 2009 at 4:30 PM, Rafal Roginela <Rafal.Roginela at americashloans.net> wrote:
Hi All,
I have a 4.2 install of Hobbit up and running and I am very happy with it. It runs on an old Gateway workstation with a Celeron and 512MB and performs stellar! CentOs 5 nothing fancy. I was going to move it to a more recent piece of hardware a Dell OptiPlex 320, which at least it is under warranty. I had the Idea of running it as a Xen VM on a Debian host. Is this a bad idea?
Clarification of purpose: I'm really not going to run anything else on the Xen except for this one VM and maybe and I mean maybe a test xymon VM directly replicated from the working production VM. This is to provide me with a quick failover ability of copying the image (from backup or if the HD is intact directly from there) to another Xen host and BLAMO xymon is running within minutes.
Does this sound OK? Is there a better way to accomplish this?
Thank you,
Rafal Roginela Network Engineer
AmeriCash Loans, LLC
This e-mail may contain confidential and/or privileged information. If you are not the intended recipient (or have received this e-mail in error) please notify the sender immediately and destroy this e-mail. Any unauthorized copying, disclosure or distribution of the material in this e-mail is strictly forbidden.
On Fri, Feb 20, 2009 at 03:30:17PM -0600, Rafal Roginela wrote:
I have a 4.2 install of Hobbit up and running and I am very happy with it. It runs on an old Gateway workstation with a Celeron and 512MB and performs stellar! CentOs 5 nothing fancy. I was going to move it to a more recent piece of hardware a Dell OptiPlex 320, which at least it is under warranty. I had the Idea of running it as a Xen VM on a Debian host. Is this a bad idea?
The only problem I've seen with Hobbit running in a VM is that the virtual machines - at least with VMware - sometimes have problems maintaining their system clock in sync with the real world. The clock tends to drift somewhat.
Since lots of stuff in Xymon (Hobbit) is timing dependant, this can be a problem. The 4.2.0 and 4.2.2 versions in particular would not handle a system clock going backwards very well - 4.2.3 is better, and it should be all cured with 4.3.0, at least so that Xymon doesn't crash if that happens. But it will still affect the timestamps that appear on all of the log entries Xymon makes.
Regards, Henrik
What's really weird is that one Xymon server that I run on VMWare Server on X86 has a clock that actually gains time! Bizarre.
Henrik Størner wrote:
On Fri, Feb 20, 2009 at 03:30:17PM -0600, Rafal Roginela wrote:
I have a 4.2 install of Hobbit up and running and I am very happy with it. It runs on an old Gateway workstation with a Celeron and 512MB and performs stellar! CentOs 5 nothing fancy. I was going to move it to a more recent piece of hardware a Dell OptiPlex 320, which at least it is under warranty. I had the Idea of running it as a Xen VM on a Debian host. Is this a bad idea?
The only problem I've seen with Hobbit running in a VM is that the virtual machines - at least with VMware - sometimes have problems maintaining their system clock in sync with the real world. The clock tends to drift somewhat.
Since lots of stuff in Xymon (Hobbit) is timing dependant, this can be a problem. The 4.2.0 and 4.2.2 versions in particular would not handle a system clock going backwards very well - 4.2.3 is better, and it should be all cured with 4.3.0, at least so that Xymon doesn't crash if that happens. But it will still affect the timestamps that appear on all of the log entries Xymon makes.
Regards, Henrik
-- Rich Smrcina VM Assist, Inc. Phone: 414-491-6001 Ans Service: 360-715-2467 http://www.linkedin.com/in/richsmrcina
Catch the WAVV! http://www.wavv.org WAVV 2009 - Orlando, FL - May 15-19, 2009
Rich Smrcina a écrit :
What's really weird is that one Xymon server that I run on VMWare Server on X86 has a clock that actually gains time! Bizarre.
Henrik Størner wrote:
On Fri, Feb 20, 2009 at 03:30:17PM -0600, Rafal Roginela wrote:
I have a 4.2 install of Hobbit up and running and I am very happy with it. It runs on an old Gateway workstation with a Celeron and 512MB and performs stellar! CentOs 5 nothing fancy. I was going to move it to a more recent piece of hardware a Dell OptiPlex 320, which at least it is under warranty. I had the Idea of running it as a Xen VM on a Debian host. Is this a bad idea?
The only problem I've seen with Hobbit running in a VM is that the virtual machines - at least with VMware - sometimes have problems maintaining their system clock in sync with the real world. The clock tends to drift somewhat.
Since lots of stuff in Xymon (Hobbit) is timing dependant, this can be a problem. The 4.2.0 and 4.2.2 versions in particular would not handle a system clock going backwards very well - 4.2.3 is better, and it should be all cured with 4.3.0, at least so that Xymon doesn't crash if that happens. But it will still affect the timestamps that appear on all of the log entries Xymon makes.
Regards, Henrik
What VM software do you use ? I often seen VMWare guests having troubles with clock management. The issue was solved with a kernel parameter (didn't remember wich one).
dOCtoR MADneSs wrote:
What VM software do you use ? I often seen VMWare guests having troubles with clock management. The issue was solved with a kernel parameter (didn't remember wich one).
To unsubscribe from the hobbit list, send an e-mail to hobbit-unsubscribe at hswn.dk
VMWare Server 1.0.5. I haven't tried Version 2 on this machine yet.
-- Rich Smrcina VM Assist, Inc. Phone: 414-491-6001 Ans Service: 360-715-2467 http://www.linkedin.com/in/richsmrcina
Catch the WAVV! http://www.wavv.org WAVV 2009 - Orlando, FL - May 15-19, 2009
Rich Smrcina a écrit :
dOCtoR MADneSs wrote:
What VM software do you use ? I often seen VMWare guests having troubles with clock management. The issue was solved with a kernel parameter (didn't remember wich one).
To unsubscribe from the hobbit list, send an e-mail to hobbit-unsubscribe at hswn.dk
VMWare Server 1.0.5. I haven't tried Version 2 on this machine yet.
You could find the kernel parameter to use on your vmware guests (if they are running linux of course), It was clock=pit you could find more infos here : http://kb.vmware.com/selfservice/viewContent.do?externalId=1420 (or use google cache, because i've blank page without it). google : vmware linux clock 1st reply
dOCtoR MADneSs wrote:
You could find the kernel parameter to use on your vmware guests (if they are running linux of course), It was clock=pit you could find more infos here : http://kb.vmware.com/selfservice/viewContent.do?externalId=1420 (or use google cache, because i've blank page without it). google : vmware linux clock 1st reply
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Cool, thanks doc!
-- Rich Smrcina VM Assist, Inc. Phone: 414-491-6001 Ans Service: 360-715-2467 http://www.linkedin.com/in/richsmrcina
Catch the WAVV! http://www.wavv.org WAVV 2009 - Orlando, FL - May 15-19, 2009
On Thu, 2009-02-26 at 10:45 +0100, Henrik Størner wrote:
On Fri, Feb 20, 2009 at 03:30:17PM -0600, Rafal Roginela wrote:
I have a 4.2 install of Hobbit up and running and I am very happy with it. It runs on an old Gateway workstation with a Celeron and 512MB and performs stellar! CentOs 5 nothing fancy. I was going to move it to a more recent piece of hardware a Dell OptiPlex 320, which at least it is under warranty. I had the Idea of running it as a Xen VM on a Debian host. Is this a bad idea?
The only problem I've seen with Hobbit running in a VM is that the virtual machines - at least with VMware - sometimes have problems maintaining their system clock in sync with the real world. The clock tends to drift somewhat.
Since lots of stuff in Xymon (Hobbit) is timing dependant, this can be a problem. The 4.2.0 and 4.2.2 versions in particular would not handle a system clock going backwards very well - 4.2.3 is better, and it should be all cured with 4.3.0, at least so that Xymon doesn't crash if that happens. But it will still affect the timestamps that appear on all of the log entries Xymon makes.
Regards, Henrik
I am running hobbit on a VMWare VM and I have only noticed slight drifting of the clock. I just ntpd on both the Vmware host and the hobbit vm and it seems to keep the clock in check.
Regards, Benedikt
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participants (6)
-
benedikt＠utrad.is
-
doctor＠makelofine.org
-
henrik＠hswn.dk
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josh＠imaginenetworksllc.com
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Rafal.Roginela＠AmeriCashLoans.net
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rsmrcina＠wi.rr.com