Add a configuration option to the undercloud.conf to update max_resources_per_stack in the heat.conf on the undercloud. The default 1000 is good for the common case. When doing at scale, we need to increase this value. We recommend 30* number of nodes[1], so the user could provide # of nodes they will be deploying, and we calculate what to set this to. [1] https://access.redhat.com/solutions/1614073
This bug did not make the OSP 8.0 release. It is being deferred to OSP 10.
Marking this closed. This change seems to make the value unlimited: https://review.openstack.org/#/c/286746/ If this is not the case, please reopen.