[Pacemaker] known problem with corosync 1.4.1 on centos64 ?

[Andrew Beekhof]

On 22/06/2013, at 5:13 AM, Andreas Mock <Andreas.Mock at web.de> wrote:

> Hi Andreas,
>  
> my two cents to your questions:
>  
> a) If you want to learn most, take any distro and compile the components from
> source and afterwards use them. => Most learned.

Well, yes, but not always about clustering and not always things that couldn't have been learned from reading the docs (and staying awake).

>  
> b) I don't know how others think about it: But I use a cluster to try to increase uptime.
> If I know that a disto's component is buggy causing failures while doing the first steps
> with a more or less standard config (corosync/pacemaker/drbd + some service) I have
> two choices when I have to stick to a distro's repos:
> 1) Take the next step distro…6.4 in your case.

Absolutely.

> But it can have bugs too.

True, but they might not be ones that affect you.

> 2) Ask why it is important to stick to the ditro's repos with a certain software stack.

The answer should be "support".
IMHO, you should obtain the packages from whoever is going to be supplying it (otherwise you're making it impossible for them to help).

If you're here, I'd suggest upstream packages unless you're using a paid-for distro like RHEL or SLES.

> In your case I don't know why it is "allowed" to build drbd from source and it's not
> "allowed" to build the cluster stack from source. Especially while getting the feet wet
> with corosync/pacemaker and all the stuff is much more effort compared to the effort
> understanding, configuring and maintaining a cluster.
>  
> My policy is also to keep as close as possible to the distro's repos. But when
> I need a newer or more stable version of a software, I have to use it.
>  
> Best regards
> Andreas
>  
>  
>  
> Von: andreas graeper [mailto:agraeper at googlemail.com] 
> Gesendet: Freitag, 21. Juni 2013 15:00
> An: The Pacemaker cluster resource manager
> Betreff: Re: [Pacemaker] known problem with corosync 1.4.1 on centos64 ?
>  
> hi,
> > old version :
> i shall maintain a centos63 with, except drbd (build from source), only standard-repos are used.
> for testing i installed newest centos64, but .. .
> 
> there is no chance to get rid of that centos63, but for learning/testing what are the best distros ? not in general, but for use with drbd+corosync+pacemaker.
> 
>  
> 
> 2013/6/21 Lars Marowsky-Bree <lmb at suse.com>
> On 2013-06-21T10:56:29, andreas graeper <agraeper at googlemail.com> wrote:
> 
> > hi,
> > when only i remove or add resources, corosync starts to eat up all cpu.
> > drbd 8.4.1 (build from source)
> > corosync 1.4.1
> 
> yes, corosync 1.4.1 had one such error, I recall. If you're building
> from source, why are you sticking to such an old version?
> 
> 
> Regards,
>     Lars
> 
> --
> Architect Storage/HA
> SUSE LINUX Products GmbH, GF: Jeff Hawn, Jennifer Guild, Felix Imendörffer, HRB 21284 (AG Nürnberg)
> "Experience is the name everyone gives to their mistakes." -- Oscar Wilde
> 
> 
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