hi
I'm reading "An A-Z guide to Pacemaker's Configurations
Options" and in there it read:
"...
So when you are creating colocation constraints, it is
important to consider whether you should
colocate A with B, or B with A.
Another thing to keep in mind is that, assuming A is
colocated with B, the cluster will take into account
A’s preferences when deciding which node to choose for B.
..."
I have a healthy cluster, three nodes, a five resources at
given time running on node1.
Then I create a LVM resource which cluster decides to put on
node2.
Then I do:
$ pcs constraint colocation add resourceA(running@node1)
with aLocalStorage6(newly created, running@node2)
I cluster moves all the resources to node2.
And I say whaaat? Something, guide+reality, does not ad up,
right?
.
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