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[Matthew Edmonds <edmondsw@xxxxxxxxxx>]

Public bug reported:

HTTP 413 is supposed to mean (per RFC2616) that the request entity was
too large. E.g., if you send an enormous body with the request. That is
not at all how it is being used in the server resize request example
below. The nova/api/openstack/compute/servers.py is coded to return 413
for QuotaError and PortLimitExceeded on create as well as for QuotaError
on resize, and there may be other places 413 is being returned
inappropriately.

POST https://9.5.126.113/powervc/openstack/compute/v2/6ce8fae0510349dcbf9b3965f7a20061/servers/8ebaabfc-9018-4ac1-afc6-630aee8a8ae3/action
Request body: {  "resize": {
            "flavor": {
              "vcpus": 1,
              "ram": 9999999999,
              "disk": 20
          }}}

Response: HTTP 413 (Request Entity Too Large)
Response body: 
{
overLimit: {
message: "NV-02B1F9F Quota exceeded for ram: Requested 1410063359, but already used 6144 of 8000000 ram"
code: 413
retryAfter: "0"
}
-
}

** Affects: nova
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1298131

Title:
  improper usage of HTTP 413 status code

Status in OpenStack Compute (Nova):
  New

Bug description:
  HTTP 413 is supposed to mean (per RFC2616) that the request entity was
  too large. E.g., if you send an enormous body with the request. That
  is not at all how it is being used in the server resize request
  example below. The nova/api/openstack/compute/servers.py is coded to
  return 413 for QuotaError and PortLimitExceeded on create as well as
  for QuotaError on resize, and there may be other places 413 is being
  returned inappropriately.

  POST https://9.5.126.113/powervc/openstack/compute/v2/6ce8fae0510349dcbf9b3965f7a20061/servers/8ebaabfc-9018-4ac1-afc6-630aee8a8ae3/action
  Request body: {  "resize": {
              "flavor": {
                "vcpus": 1,
                "ram": 9999999999,
                "disk": 20
            }}}

  Response: HTTP 413 (Request Entity Too Large)
  Response body: 
  {
  overLimit: {
  message: "NV-02B1F9F Quota exceeded for ram: Requested 1410063359, but already used 6144 of 8000000 ram"
  code: 413
  retryAfter: "0"
  }
  -
  }

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