I've solved the problem by not creating all the machines at the same time.
Each Machine should be created alone by using:
depends_on: other_machine
After changing my Heat-Template it's now deploying without errors!
But still the question relies, if this has to be fixed.
If the Edge of DHCP sends back that it is a duplication, maybe it has to be checked if it's the same as we try to create. If this is true, we should not create an Exception.
I think the problem seems to be related to the newest Patch of the following link: /review. openstack. org/gitweb? p=openstack/ vmware- nsx.git; a=commit; h=d9d5e226c9e9b 9ac3b0f78d69e1d 41f9c2f188e5
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I've solved the problem by not creating all the machines at the same time.
Each Machine should be created alone by using:
depends_on: other_machine
After changing my Heat-Template it's now deploying without errors!
But still the question relies, if this has to be fixed.
If the Edge of DHCP sends back that it is a duplication, maybe it has to be checked if it's the same as we try to create. If this is true, we should not create an Exception.