Cloudlinux - Feedback/Experience

inferencia

inferencia

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Aug 21, 2005
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Hello,

We're considering converting a few shared centos machines with Directadmin to Cloudlinux. Is anyone using this on a heavy shared hosting server with Directadmin? Can you share your experience using Cloudlinux with us?

Thank you!
 
Is it even supported by directadmin? I dont even see it listed as one of the control panels its compatable with.
 
Interesting. Still looking at the forum for real advantages. Looks like an openVZ-based virtualization technology.

Seems to have something to do with a gent named Igor Seletskiy; didn't he used to run HSphere?

I don't see anything on the site which clarifies their connection with the open source linux software they're distributing. Do they offer source code, as they'd be required to if they're using open-source software as part of their distribution?

Please let us know how it works for you.

Jeff
 
Hey Jeff !,

Hope you're well. I've no idea who Igor is. I've been reading up on this and I've also asked them on their site's chat, and it is based on RHEL or Centos, they use thier own repositories. It creates a virtualization layer between users or something and then throttles everyones usage, or something.

I'm about to try it, but I want to wait to have at least a few real experience responses, just incase :)
 
Thanks for the additional information. I still see nothing about the Linux open-source licensing issue. Are they distributing an entire distribution on CD-ROM? If so, then to be compliant they should be releasing source code for linux kernel, and possibly for other software as well.

Jeff
 
jlasman said:
Thanks for the additional information. I still see nothing about the Linux open-source licensing issue. Are they distributing an entire distribution on CD-ROM? If so, then to be compliant they should be releasing source code for linux kernel, and possibly for other software as well.

Jeff
Click to expand...

They provide SRPMS with all their patches.

We are using DirectAdmin + CloudLinux on one hosting machine. It works, but load statistics differ with our own statistic system based on BSD process accounting system (we are using php as cgi with CloudLinux modified suexec).
 
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Hi ProHSP,

Thanks for sharing your experience with us. Can you tell us what exactly Cloudlinux does , that withit , it doesn't ?

Better balancing? Less loads?

Why do you use it? And why should I not ?

:)

Thanks !
 
i use CL for 3 production server and running good until now.
CL as far as effective prevent server to overload caused by user that create bad script.
and that's mean when user running script over the process limit, just their account affected and slow not all user or whole server.

i also try upload script in specified user then do flooding network with this shell script and i get 503 error that's mean you are reach process limit.

CL can save my time, i don't need worry about server overload caused by bad script

but usually overload is also caused by database query, if you use cpanel there is ready plugin to limiting database process call as mysql Governoor and i'm still waiting that plugin for directadmin. right now still not ready db governoor for Directadmin.

sory for bad language, still learn to write in english
 
Hello,

My name is Igor Seletskiy, and I indeed was the person behind H-Sphere until 2007.

CloudLinux automatically limits resources on per customer bases -- which in turn improves stability, and might allow you to increase density.
In some sense it has similar purpose to RFXN script, though underlying technology is very different.
We are not a monitoring solution. We work on CPU scheduler level, and as such we don't have to kill processes, nor 'count' how much they are using now. As the result -- the technology works even if the load spikes before your monitoring solution had chance to intervene. It is much more reliable, and allows you adjust limits on the fly.

All our kernel changes are GPLed, and available from our source repository:
http://repo.cloudlinux.com/cloudlinux/5.6/os/SRPMS/
Kernel module is not GPLed (as we are not required to do so)
Same with some of the tools/plugins we provide.

Regarding MySQL -- it is something we are working on
http://www.cloudlinux.com/blog/clnews/beta-mysql-governor-v04.php
Though we haven't worked around yet through the way DA ships MySQL -- we plan to do it in the near future.

Overall system is only needed for people running shared hosting. If you run just one or two sites on a server, CloudLinux has no benefits at all.
 
cyberneticos said:
Hi ProHSP,

Thanks for sharing your experience with us. Can you tell us what exactly Cloudlinux does , that withit , it doesn't ?

Better balancing? Less loads?

Why do you use it? And why should I not ?

:)

Thanks !
Click to expand...

Currently, we are using a small set of CL features.
We limit maxEntryProc for all clients, so they can't run too much processes and fill the RAM/scheduler.
We also set cpu limits for all clients to the same default value, so on peak cpu loads CPU resources are distributed equally not between running processes but between running users.
Subjectively, server works more stable, and fewer clients complain about slow sites.
We don't use MySQL accounting or limiting features yet, but I am totally sure that we never will -- because limiting or killing queries eats a lot of memory or breaks user websites respectively.

We started using it because I can't release my accounting utility using linux cgoups and mysql-peruser statistics in time :) I think, it is totally suitable for most of hosting providers.
 
Thanks proHSP for sharing this with us. I am going to give it a try withing the next few days and post my experience here as well.

Cheers.
 
cyberneticos said:
Thanks proHSP for sharing this with us. I am going to give it a try withing the next few days and post my experience here as well.

Cheers.
Click to expand...

Thank you -- it's going to be very interesting.
Also, you can PM me some things in CL that can be done better in your opinion. I will try to do that in release of my accounting and limiting system.
 
@iseletsk:

Sorry, Igor, the forum software moderated your post. I've just released it. Thanks for the clarifications.

Note to others: Igor's post should answer a lot of your questions, it's post #12 above.

Jeff
 
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