Comment 2 for bug 1740396

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Zane Bitter (zaneb) wrote :

When people blacklist failed nodes they typically update the hostname map with dummy names like so:

    overcloud-compute-0: compute-0
    overcloud-compute-1: UNUSED
    overcloud-compute-2: UNUSED
    overcloud-compute-3: compute-3

Enforcing uniqueness at the parameter level in Heat (as https://review.openstack.org/#/c/530903/ seems to be preparing the ground for) will break existing deployments using this pattern.