[Pacemaker] Fwd: All resources bounce on failback

Pavel Levshin pavel at levshin.spb.ru
Mon Mar 21 17:25:35 EDT 2011

22.03.2011 0:06, David Morton:
> Many thanks Pavel !! Using a value of 0 changes the behavior to the 
> desired, makes perfect sense when explained in plain terms also !!
> I will experiment with some non-0 values, what situations could cause 
> the order directive not being honored with a 0 value ?

Advisory-only ordering is applied when both action need to be executed. 
You have colocation constraint which takes care of starting OCFS2_SHARED 
with DEPOT, and then order constraint determines what starts first. The 
same logic applies to stop. So this setup should be safe.

Note that score in ordering constraint is somewhat misleading. The 
actual value does not matter; basically, there is only two possible 
values: above zero for mandatory constraing and zero or less for 
advisory one.

Pavel Levshin

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