SAM Candlepin not allowing pooling of virtual subscriptions on clusters

Solution Unverified - Updated -

Issue

In a VMware cluster consisting of 3 ESX hosts using 3 licenses entitled to 4 guests each (total of 12 for the cluster), SAM/Candlepin will not allow any guest to be registered to a virtual subscription if it is running on a ESX host with >4 guests.

Essentially, it is not allowing the 4 guest entitlements to be pooled for the cluster and instead limits it to a max of 4 guests per node. This limits the use case for a virtual clustered environment and seems to be contrary to the license language.

It is believed, though not yet confirmed, that this occurs on other virtual hypervisors as well (kvm, RHEV, Hyper-V).

Version-Release number of selected component (if applicable):
candlepin-0.6.5-1.el6_2.noarch

How reproducible:

Configure SAM/virt-who for a VMware ESX cluster of 2 or more nodes. Register 5 RHEL guests, all on the same ESX physical host, using a 4 guest entitlement. The fifth will fail to register unless you use a new physical subscription entitlement.

Environment

Red Hat Enterprise Linux (RHEL) 6
Subscription Asset Manager (SAM) 1.2

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