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[Fernando Royo <1973765@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

While running a heavy load test, where create CRUD operations over load
balancers and editing all pending items (listener/pool/member). We are
getting error "IP_ADDRESS already allocated in subnet". Apparently
because the address is being used by a Port for the load-balancer, but
the load-balancer doesn't exist in a post error check.

e.g. when create loadbalancer is sent we get this error from Octavia
API:

octavia.common.exceptions.ProviderDriverError: Provider 'ovn' reports
error: IP address 172.30.125.1 already allocated in subnet
beb4de56-a2b1-487b-9ab5-e10a0ad0d7ac


[stack@undercloud ~]$ openstack port list | grep 172.30.125.1
| 6a9c24a2-7907-4b5c-b406-f74ba5a05820 | ovn-lb-vip-22efa8a7-460c-443f-8f53-ac53929e8637                  | fa:16:3e:ea:e5:c4 | ip_address='172.30.125.1', subnet_id='beb4de56-a2b1-487b-9ab5-e10a0ad0d7ac'   | DOWN   |


[stack@undercloud ~]$ openstack loadbalancer list --vip-port-id ovn-lb-vip-22efa8a7-460c-443f-8f53-ac53929e8637  
[stack@undercloud ~]$

** Affects: neutron
     Importance: Undecided
     Assignee: Fernando Royo (froyoredhat)
         Status: In Progress

** Changed in: neutron
     Assignee: (unassigned) => Fernando Royo (froyoredhat)

** Changed in: neutron
       Status: New => In Progress

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https://bugs.launchpad.net/bugs/1973765

Title:
  LB creation failed due to address already in use

Status in neutron:
  In Progress

Bug description:
  While running a heavy load test, where create CRUD operations over
  load balancers and editing all pending items (listener/pool/member).
  We are getting error "IP_ADDRESS already allocated in subnet".
  Apparently because the address is being used by a Port for the load-
  balancer, but the load-balancer doesn't exist in a post error check.

  e.g. when create loadbalancer is sent we get this error from Octavia
  API:

  octavia.common.exceptions.ProviderDriverError: Provider 'ovn' reports
  error: IP address 172.30.125.1 already allocated in subnet
  beb4de56-a2b1-487b-9ab5-e10a0ad0d7ac

  
  [stack@undercloud ~]$ openstack port list | grep 172.30.125.1
  | 6a9c24a2-7907-4b5c-b406-f74ba5a05820 | ovn-lb-vip-22efa8a7-460c-443f-8f53-ac53929e8637                  | fa:16:3e:ea:e5:c4 | ip_address='172.30.125.1', subnet_id='beb4de56-a2b1-487b-9ab5-e10a0ad0d7ac'   | DOWN   |

  
  [stack@undercloud ~]$ openstack loadbalancer list --vip-port-id ovn-lb-vip-22efa8a7-460c-443f-8f53-ac53929e8637  
  [stack@undercloud ~]$

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