[Pacemaker] cli configuration and resource sets

[Andrew Beekhof]

On Fri, Feb 19, 2010 at 1:06 PM, Cristian Mammoli - Apra Sistemi
<c.mammoli at apra.it> wrote:
> Dejan Muhamedagic wrote:
>
>> Sorry, didn't read careful enough, was distracted by the actions
>> in the description. Yes, you need both the order and the
>> collocation.
>
>>> Basically what I want to achieve is the same behaviour of an
>>> unordered group of heartbeat 2.1.4.
>>
>> Why don't you keep the unordered group?
>
> Uhm, in heartbeat 2.1.4 i could specify "collocated=true/false" and
> "ordered="true/false" for the groups. As I said I nedd an unordered,
> collocated group.
>
> In pacemaker I didn't find a way to specify this options for group (through
> the gui or the cli). According to the docs:

Use a resource set:
    http://www.clusterlabs.org/doc/en-US/Pacemaker/1.0/html/Pacemaker_Explained/s-resource-sets-collocation.html

> One of the most common elements of a cluster is a set of resources that need
> to be located together, start sequentially and stop in the reverse order. To
> simplify this configuration we support the concept of groups.
>
> So I think all groups are collocated and ordered by design, aren't they?

Yes

>
>> I'm a bit confused. You already used an unordered group and
>> resource sets. Shouldn't they do?
>
> In 2.1.4 I used an unordered group and I referenced it once in order (after
> filesystem) and colocation (with filesystem).
> With pacemaker, since I can't find a way to create a group unordered, I have
> to use many primitives and create an order rule and a colo rule for everyone
> of them.
> Indeed I'm trying to use resource sets to replicate the example in chapter
> 6.6.
>
> --
> Cristian Mammoli
> APRA SISTEMI srl
>
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