[Pacemaker] Convenience Groups - WAS Re: [Linux-HA] Unordered groups (was Re: Is 'resource_set' still experimental?)

[Andrew Beekhof]

Did the ticket suggestion work for you?

On Fri, Apr 20, 2012 at 1:22 AM, Alan Robertson <alanr at unix.sh> wrote:
> Hi Andrew,
>
> I'm currently working on a fairly large cluster with lots of resources
> related to attached hardware.  There are 59 of these things and 24 of those
> things and so on and each of them has its own resource to deal with the the
> "things".  They are not clones, and can't easily be made clones.
>
> I would like to be able to easily say "shut down all the resources that
> manage this kind of thing".    The solution that occurs to me most obviously
> is one you would likely call a "double abomination" ;-) - an unordered and
> un-colocated group.  It seems a safe assumption that this would not be a
> good path to pursue given your statements from last year...
>
> What would you suggest instead?
>
>
>
>
>
>
> On 01/19/2011 01:19 AM, Andrew Beekhof wrote:
>>
>> On Tue, Jan 18, 2011 at 1:42 PM, Florian Haas<florian.haas at linbit.com>
>>  wrote:
>>>
>>> On 01/18/2011 11:49 AM, RaSca wrote:
>>>>
>>>> As discussed yesterday on IRC with Andrew, there is no way of creating a
>>>> group with indipendent resources.
>>>> I was hoping that setting the options you mentioned can do the trick,
>>>> but I've just tested:
>>>>
>>>> If you declare a group like this:
>>>>
>>>> group groupA resA resB resC meta ordered=false colocated=false
>>>>
>>>> and then you do a:
>>>>
>>>> crm resource stop resB, then resC is also stopped.
>>>
>>> To the best of my knowledge this shouldn't happen and I'd be inclined to
>>> call this a bug. But I'm not certain. Andrew, can you shed some light on
>>> that?
>>
>> Unordered and/or uncolocated groups are an abomination.
>> Is that enough light?
>>
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>> Bugs:
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>>
>
>
> --
>    Alan Robertson<alanr at unix.sh>  - @OSSAlanR
>
> "Openness is the foundation and preservative of friendship...  Let me claim
> from you at all times your undisguised opinions." - William Wilberforce