Comment 1 for bug 1391848

I am more than sure that is the problem of our current heat-engine deployment - there is only one of them running even in HA deployment, and it might simply choke on load, as the actual job of creating and deleting stacks is done by this single heat-engine.

This behavior of heat-engine was a workaround for (then undiscovered) bug https://bugs.launchpad.net/mos/+bug/1387345 that prevented us from actually using Heat in multi-engine mode.

Patches with the fix that will allow us to really use active-active heat-engine deployment are
- https://review.openstack.org/#/c/133455/ (fuel-web/master, merged)
- https://review.openstack.org/#/c/133263/ (fuel-lib/master, on review)