nova/bug-1978444-db46df5f3d5ea19e.yaml at 3b4db6408e86302126d6bd27717670594e6fa403 - nova - OpenDev: Free Software Needs Free Tools

openstack/nova

Takashi Kajinami 8f4b740ca5 Retry attachment delete API call for 504 Gateway Timeout

When cinder-api runs behind a load balancer(eg haproxy), the load
balancer can return 504 Gateway Timeout when cinder-api does not
respond within timeout. This change ensures nova retries deleting
a volume attachment in that case.

Also this change makes nova ignore 404 in the API call. This is
required because cinder might continue deleting the attachment even if
the load balancer returns 504. This also helps us in the situation
where the volume attachment was accidentally removed by users.

Closes-Bug: #1978444
Change-Id: I593011d9f4c43cdae7a3d53b556c6e2a2b939989

2022-06-13 17:32:35 +09:00

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 fixes:
   - |
     `Bug #1978444 <https://bugs.launchpad.net/nova/+bug/1978444>`_: Now nova
     retries deleting a volume attachment in case Cinder API returns
     ``504 Gateway Timeout``. Also, ``404 Not Found`` is now ignored and
     leaves only a warning message.