Quota usage should be updated if there's no valid host to run an instance

[Santiago Baldassin]

When nova scheduler does not find a valid host to run an instance, the instance quota usage should be decremented.

[melanie witt (melwitt)]

This needs a little more information. What do you see in this scenario i.e. is there an instance in ERROR state after you run the command? Unfortunately at present, instances in ERROR state do occupy quota which is only freed upon deleting them.

[Santiago Baldassin (santiago-b-baldassin)]

hi Melanie, yes, the instance is in Error state after the command. What I do not understand is why do instances in error state occupy quota?

[Joe Gordon (jogo)]

Instances in error state take up quota. This is for consistency since we generally count error state instances against the quota and having some count and others not count would be even more confusing.