[Pacemaker] How to notify one resource about changes in another resource?

[Slava Astashonok]

Hello,

I wonder is it possible to notify one resource about changes in another 
resource state. Suppose, I have two different services A and B. They run 
on several nodes of cluster. I'd like to inform B about changes in A 
state. For example, in case of stopping A on any of cluster node I'd 
like to see this event on all nodes runing service B - in form of 
executing some script. Is it possible to achieve such behavior from 
pacemaker?