Comment 4 for bug 1369551

Many customers are stuck with hanged environments, I think to fix this behavior we should backport 2 features:
 - https://blueprints.launchpad.net/murano/+spec/murano-agent-timeouts (already in 6.1 branch, but is not present in 6.0)
 - https://blueprints.launchpad.net/murano/+spec/environment-abandon (added in MOS 8.0)

@Vitaly please confirm that this is feasible for your team.