[Pacemaker] Can I use Pacemaker release 1.1.8 for production clusters?

[Andrew Beekhof]

On 12/06/2013, at 12:08 AM, Andrew Martin <amartin at xes-inc.com> wrote:

> ----- Original Message -----
>> From: "Michael Furman" <michael_furman at hotmail.com>
>> To: pacemaker at oss.clusterlabs.org
>> Sent: Tuesday, June 11, 2013 3:19:52 AM
>> Subject: Re: [Pacemaker] Can I use Pacemaker release 1.1.8 for production clusters?
>> 
>> 
>> 
>> Thank you for the reply!
>> What problem you encounter in a production environment?
>> What repository you added to download stable release 1.0.12 of
>> Pacemaker?
>> Do you have any conflicts with the dependencies of Pacemaker 1.0.12?
>> 
>> Best regards,
>> Michael
>> 
>> 
>>> Date: Mon, 10 Jun 2013 18:36:34 -0500
>>> From: amartin at xes-inc.com
>>> To: pacemaker at oss.clusterlabs.org
>>> Subject: Re: [Pacemaker] Can I use Pacemaker release 1.1.8 for
>>> production clusters?
>>> 
>>> ----- Original Message -----
>>>> From: "Florian Crouzat" <gentoo at floriancrouzat.net>
>>>> To: pacemaker at oss.clusterlabs.org
>>>> Sent: Monday, June 10, 2013 10:01:35 AM
>>>> Subject: Re: [Pacemaker] Can I use Pacemaker release 1.1.8 for
>>>> production clusters?
>>>> 
>>>> Le 10/06/2013 16:46, Michael Furman a écrit :
>>>>> Hi all!
>>>>> 
>>>>> According to the Wiki http://clusterlabs.org/wiki/Releases
>>>> 
>>>> 
>>>> This page has not been updated since 10:49, 11 February 2011
>>>> 
>>>>> 
>>>>> Even numbered release series (eg. 0.6.x, 1.0.x) are recommended
>>>>> for
>>>>> production clusters.
>>>>> 
>>>>> I need to install Pacemaker on Centos 6 machines.
>>>>> Unfortunately, the main Centos repository contains only
>>>>> 1.1.8-7.el6
>>>>> version.
>>>>> 
>>>>> Questions:
>>>>> Can I use Pacemaker release 1.1.8 for production clusters (we
>>>>> want
>>>>> to
>>>>> work with the Centos repository)?
>>>> 
>>>> I hope so
>>>> 
>>>>> Do you expect to change existing features in 1.1.8?
>>>> 
>>>> I believe it's not really a tech preview anymore since EL6.4 so
>>>> I'd
>>>> expect things not to move a lot anymore until RHEL7
>>>> 
>>>> 
>>>>> Do you have uncompleted features in 1.1.8?
>>>>> 
>>>>> What repository contains Pacemaker release 1.0.12?
>>>>> 
>>>>> Thanks for your help,
>>>>> 
>>>>> Michael
>>>> 
>>>> 
>>> Michael,
>>> 
>>> I've run into some bugs running Pacemaker 1.1.8 in a production
>>> environment.
>>> I am currently waiting for Pacemaker 1.2.0 (the next stable series
>>> release)
>>> to be available for use in production clusters. The next
>>> development release,
>>> 1.1.10, which is due out soon will be very similar to what is
>>> released as
>>> 1.2.0.
>>> 
>>> Thanks,
>>> 
>>> Andrew
>> 
> 
> Michael,
> 
> The problems had to do with node membership (a node joining
> the cluster twice with different names) and a bug that caused
> pengine to die periodically.

That was vanilla 1.1.8 though.
RHEL6.4 has a highly patched version from upstream and does not suffer from the above problem.


> For now I am just running the 
> clusters in maintenance mode (unmanaged) as I think Pacemaker
> 1.0.x is too old for my use case. 

Agreed.  1.0 is getting on a bit now.

> 
> I would recommend using Corosync 2.x with Pacemaker so that you 
> can obtain membership and quorum data from the same source for 
> all parts of the stack (#3 on this page):
> http://blog.clusterlabs.org/blog/2012/pacemaker-and-cluster-filesystems/

As I say at the end of that post, you're best sticking with whatever the distro supports/tests.
On RHEL, thats pacemaker+CMAN