Comment 8 for bug 1401929

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Steven Hardy (shardy) wrote :

Another reason for removing the per-resource custom constraints is probably performance - e.g if you create a 1000 servers in a ResourceGroup we make at least 1000 calls to glance validating the same thing, vs (hopefully) 1 if you just validate the parameter via an explicitly defined custom contraint (or not, if you prefer not to fail fast during validation for whatever reason).