[Linux-HA] "one-way" dependency

[Alan Robertson]

Yan Fitterer wrote:
> I have two resource groups: A and B.
> 
> I need:
> 1) B depends on A
> 2) A does NOT depend on B
> 3) A and B must always run on the same node.
> 
> Currently, I have:
> 
>  <constraints>
>    <rsc_colocation id="CL_A_B" from="A" to="B" score="INFINITY"/>
>    <rsc_order id="OR_B_1" from="B" type="after" to="A" action="start" symmetrical="false"/>
>    <rsc_order id="OR_B_2" from="B" type="before" to="A" action="stop" symmetrical="false"/>
>  </constraints>
> 
> 
> But if I stop B, A gets stopped as well.
> 
> How can I solve this?

The symmetrical option should be applited to the rsc_colocation item I
believe, instead of the rsc_order.  AND you have to be running >= 2.0.8

Ordering has never been symmetric - as that actually doesn't make any
sense.  A cannot be before B and at the same time have B be before A.



-- 
    Alan Robertson <alanr at unix.sh>

"Openness is the foundation and preservative of friendship...  Let me
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