[Pacemaker] Does pingd works on openais?

[Andrew Beekhof]

On Wed, Mar 19, 2008 at 10:38 AM, Atanas Dyulgerov
<atanas.dyulgerov at postpath.com> wrote:
>
>
>  -----Original Message-----
>  From: Andrew Beekhof [mailto:beekhof at gmail.com]
>
> Sent: Tuesday, March 18, 2008 11:59 AM
>  To: The Pacemaker cluster resource manager
>  Subject: Re: [Pacemaker] Does pingd works on openais?
>
>
> >> Heartbeat/Pacemaker does not support resource fencing.
>  >
>
> >Technically it does (or could)... you just need to write an RA that
>  >implements the locking you want.
>  >
>  >a) write the locking RA
>
>  Do you plan to implement such locking RA?

Maybe one day - I have quite a lot of other things that require my
attention before then

>  >b) run it everywhere as a clone
>  >c) have the RA "fail" when the node/resource/whatever (a fancy version
>  >might implement more than one zone) is "fenced"
>
>  I don't understand how to configure that.

You dont configure it, it would be a property of the resource agent
that the monitor action fails in this case.

> If I use on_fail=fence,
>  Pacemaker will fence the node? How to tell Pacemaker to fence resource?
>
>
>  >d) have any resource that needs resource fencing depend on the lock
>  >resource (colocation)
>  >
>
>  Could please explain how to configure such collocation? Or it is not
>  yet possible?

http://clusterlabs.org/mw/Image:Colocation_Explained_-_White.pdf

>  How to order resource fencing?

Resource ordering constraints.

> OCF RA should support resource fencing.

No, the idea is that the other resources have no idea that its happening.
All the details are hidden in the locking resource

>  Which resources OCF can do that? (GNBD, iSCSI, ...). Resources which
>  support locking I guess?
>
>
>  Thanks for the help.
>
>  Regards,
>  Atanas
>
>
> >
>  >
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