High Availablity for Proxmox VE 2.0 beta arrived!

martin · Dec 23, 2011

Hi all!

We just released new packages, introducing High Availability for Proxmox VE 2.0 (beta). Just run "aptitude update && aptitude full-upgrade" to update from a previous beta.

I also started to create video tutorials, published on our YouTube channel - including a short demo of HA - http://www.youtube.com/user/ProxmoxVE

As always, a big Thank-you to our active community for all feedback, testing, bug reporting and patch submissions!!!

New Features

- High Availability support for KVM guests and OpenVZ containers

resource agents for KVM and OpenVZ
GUI for managing KVM and OpenVZ HA settings
New "Datacenter" summary page, showing the cluster status (incl. HA status)

- New Wiki articles, dealing with HA

- New Kernel

Based on vzkernel-2.6.32-042stab045.1.src.rpm

- Countless small bug fixes and improvements

Overview
http://pve.proxmox.com/wiki/Roadmap#Roadmap_for_2.x

Documentation (work in progress)
http://pve.proxmox.com/wiki/Category:Proxmox_VE_2.0

Get involved (incl. links to the public git repository and bugzilla bugtracker):
http://www.proxmox.com/products/proxmox-ve/get-involved

Proxmox VE 2.0 beta forum
http://forum.proxmox.com

Download
http://www.proxmox.com/downloads/proxmox-ve/17-iso-images

Merry Christmas and Happy New Year - 2012 will be a great year for Proxmox VE 2.0!
Happy testing, waiting for feedback!
__________________
Best regards,

Martin Maurer
Proxmox VE project leader

afrugone · Dec 23, 2011

Awesome guys! it looks incredible. I'll start testing.

Merry Christmas and Happy new year for all the Proxmox team and many Thanks for your Great Work

Alfredo

tahoward · Dec 24, 2011

Thanks for the update. I ran aptitude update then full upgrade as suggested and ran in to a bit of a problem on my test machine.

aptitude update gave me an error I don't think is too troubling:

"Fetched 1,672 B in 7s (237 B/s)
W: GPG error: http://ftp.us.debian.org squeeze Release: The following signatures were invalid: BADSIG AED4B06F473041FA Debian Archive Automatic Signing Key (6.0/squeeze) <ftpmaster@debian.org>"

aptitude full-upgrade had me confirm the removal of a few packages and the intallation/update of others but ended with the following error:

"Err http://ftp.us.debian.org/debian/ squeeze/main libxml-parser-perl amd64 2.36-1.1+b1
404 Not Found [IP: 128.30.2.36 80]
E: Failed to fetch http://ftp.us.debian.org/debian/dis...d64/libxml-parser-perl_2.36-1.1+b1_amd64.deb: 404 Not Found [IP: 128.30.2.36 80]"

Rebooted the box and now apache fails to start.

Here is the apache error log output:

[Fri Dec 23 17:48:06 2011] [error] Can't locate /usr/share/pve-manager/startup.pl in @INC (@INC contains: /etc/perl /usr/local/lib/perl/5.10.1 /usr/local/share/perl/5.10.1 /usr/lib/perl5 /usr/share/perl5 /usr/lib/perl/5.10 /usr/share/perl/5.10 /usr/local/lib/site_perl . /etc/apache2) at (eval 2) line 1.\n
[Fri Dec 23 17:48:06 2011] [error] Can't load Perl file: /usr/share/pve-manager/startup.pl for server localhost:8006, exiting...

Poking around in the directories shows that "/usr/share/pve-manager" does not exist.

kankamuso · Dec 24, 2011

Dear all,

I am a bit confused about fencing. It states it is a must for proxmox HA to work. Is this true?, is not there any possibility to configure it through software?.

I am totally agnostic about fencing technologies... could you recommend me any APC Fencing-capable model as cheap as possible?.

Also, is it really required to use 3 nodes on an HA scenario?. I remember it was also a must in first XenServer implementations, but this is no longer true...

Regards,

Jose.

dietmar · Dec 24, 2011

Seems there is something wrong with your network or the Debian mirror http://ftp.us.debian.org/debian/

I suggest you try again later.

dietmar · Dec 24, 2011

kankamuso said:
I am a bit confused about fencing. It states it is a must for proxmox HA to work. Is this true?, is not there any possibility to configure it through software?.

Yes, you need a hardware based fencing method.

kankamuso said:
I am totally agnostic about fencing technologies... could you recommend me any APC Fencing-capable model as cheap as possible?.

IMHO, "as cheap as possible" is the wrong way to go if you want HA!

kankamuso · Dec 24, 2011

dietmar said:
Yes, you need a hardware based fencing method.

IMHO, "as cheap as possible" is the wrong way to go if you want HA!

Is iLO a valid method?, Can hardware fencing be done without hard stopping the other machine?. I mean, is there any way to force its disconnection from the network instead of "pulling" the power connector?.

I know, I know, we are just trying to build a test-bed for a proof of concept before we validate the system for reliability.

Best whishes.

spirit · Dec 24, 2011

need to be testes, but maybe it can be possible without special with iscsi shared storage

http://linux.die.net/man/8/fence_scsi

if you have dell servers, you can also use drac interface

http://linux.die.net/man/8/fence_drac

kankamuso · Dec 24, 2011

Following your links I found it can be done through ilo also (I suppose is the equivalent to DELL's):

http://linux.die.net/man/8/fence_ilo

Can anybody from proxmox team confirm this?.

Bests,

Jose

dietmar · Dec 24, 2011

kankamuso said:
http://linux.die.net/man/8/fence_ilo

Can anybody from proxmox team confirm this?.

Yes, that should work.

jekader · Dec 28, 2011

Great news! As I understand, IPMI management boards can also be used as fencing devices. Too bad my test cluster doesn't have IPMI, only the production one.

The question I've got so far is "what if there are several fencing devices?" - i.e. each server has its own IPMI/iLo/DRAC card. Or even more interesting: each server is connected to two different PDUs. Are these combinations possible?

tom · Dec 28, 2011

it should be possible to use several fence devices, also using two different pdu´s should work.

gregory · Dec 29, 2011

Hi,
I see that for HA there is a minimum of 3 nodes.
Is it planned to have minimum 2 nodes and maybe a quorum device ?

Thx.

tom · Dec 29, 2011

yes, if you use a qdisk you can run a two node cluster. we will document a two node setup in the wiki as soon as possible.

bogomolov · Dec 29, 2011

Hello everybody

It's possible to have a 2-node cluster setup with HA, using OpenVZ containers on top of LVM, with the new proxmox storage model (DRBD in primary/primary mode), leaving the locking mechanism of LV's (each container in one LV) with proxmox?

PS: Maybe i'm asking too late for a xmas miracle... XD

[]'s

ccorsani · Dec 31, 2011

very very interesting. We are testing now and we would like to use it for our servers ... when do you think you will release the first version?

Merry Christmas and Happy New Year - 2012 will be a great year for Proxmox VE 2.0!
Happy testing, waiting for feedback!
__________________
Best regards,

Martin Maurer
Proxmox VE project leader[/QUOTE]

djsami · Jan 1, 2012

IE browser is currently employed the panel did not have before

EdelingF · Jan 2, 2012

Will it be possible to migrate 1.9 to 2.0 or will it need a clean install? Would it be 'save' to use the Beta for a production server?

dad311 · Jan 3, 2012

Same issue here a week later.
See below, can figure out how to delete this reply.

dad311 · Jan 3, 2012

tahoward said:
Thanks for the update. I ran aptitude update then full upgrade as suggested and ran in to a bit of a problem on my test machine.

aptitude update gave me an error I don't think is too troubling:

"Fetched 1,672 B in 7s (237 B/s)
W: GPG error: http://ftp.us.debian.org squeeze Release: The following signatures were invalid: BADSIG AED4B06F473041FA Debian Archive Automatic Signing Key (6.0/squeeze) <ftpmaster@debian.org>"

aptitude full-upgrade had me confirm the removal of a few packages and the intallation/update of others but ended with the following error:

"Err http://ftp.us.debian.org/debian/ squeeze/main libxml-parser-perl amd64 2.36-1.1+b1
404 Not Found [IP: 128.30.2.36 80]
E: Failed to fetch http://ftp.us.debian.org/debian/dis...d64/libxml-parser-perl_2.36-1.1+b1_amd64.deb: 404 Not Found [IP: 128.30.2.36 80]"

Rebooted the box and now apache fails to start.

Here is the apache error log output:

[Fri Dec 23 17:48:06 2011] [error] Can't locate /usr/share/pve-manager/startup.pl in @INC (@INC contains: /etc/perl /usr/local/lib/perl/5.10.1 /usr/local/share/perl/5.10.1 /usr/lib/perl5 /usr/share/perl5 /usr/lib/perl/5.10 /usr/share/perl/5.10 /usr/local/lib/site_perl . /etc/apache2) at (eval 2) line 1.\n
[Fri Dec 23 17:48:06 2011] [error] Can't load Perl file: /usr/share/pve-manager/startup.pl for server localhost:8006, exiting...

Poking around in the directories shows that "/usr/share/pve-manager" does not exist.

I have the same issue and its a week later.

#service apache2 restart
Restarting web server: apache2Warning: DocumentRoot [/usr/share/pve-manager/root] does not exist
Warning: DocumentRoot [/usr/share/pve-manager/root] does not exist
Action 'start' failed.
The Apache error log may have more information.
failed!

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