[Bug 2049507] Re: [SRU] retry on connection error to neutron

[Timo Aaltonen]

Hello kiran, or anyone else affected,

Accepted manila into jammy-proposed. The package will build now and be
available at
https://launchpad.net/ubuntu/+source/manila/1:14.1.1-0ubuntu1.2 in a few
hours, and then in the -proposed repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how
to enable and use -proposed.  Your feedback will aid us getting this
update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested, what testing has been
performed on the package and change the tag from verification-needed-
jammy to verification-done-jammy. If it does not fix the bug for you,
please add a comment stating that, and change the tag to verification-
failed-jammy. In either case, without details of your testing we will
not be able to proceed.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance for helping!

N.B. The updated package will be released to -updates after the bug(s)
fixed by this package have been verified and the package has been in
-proposed for a minimum of 7 days.

** Changed in: manila (Ubuntu Jammy)
       Status: In Progress => Fix Committed

** Tags added: verification-needed verification-needed-jammy

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https://bugs.launchpad.net/bugs/2049507

Title:
  [SRU] retry on connection error to neutron

Status in Ubuntu Cloud Archive:
  Fix Released
Status in Ubuntu Cloud Archive caracal series:
  Fix Released
Status in Ubuntu Cloud Archive yoga series:
  In Progress
Status in OpenStack Shared File Systems Service (Manila):
  Fix Released
Status in manila package in Ubuntu:
  Fix Released
Status in manila source package in Jammy:
  Fix Committed
Status in manila source package in Noble:
  Fix Released

Bug description:
  Retry https://paste.opendev.org/show/bCtEYsFr0oTfhY9b2r34/

  so that a connection error to neutron (maybe due to kubernetes
  maintenance) does not immediately lead to share create failure. May be
  retry for 5 times with keystone connection failure to avoid duplicate
  port create in neutron. If duplicate ports are created, they become
  orphan after share deletion. So Manila should give a try to make sure
  duplicate ports are not created.

  ===============
  SRU DESCRIPTION
  ===============

  [Impact]

  Temporary connectivity issues will cause immediate failures in share creation.
  This is an improvement very desired to be included in SRU of LP#2074504. We have not personally encountered this issue because it is very rare but it is a potential problem that was adressed prior to fixing LP#2074504 and further enhances LP#2074504's fix.

  [Test case]

  Given the nature of this bug, we cannot replicate this in the lab.
  Unit tests plus upstream CI validation that this works and doesn't
  break anything should suffice.

  [Where problems could occur]

  The code only affects the neutron plugin for manila, which is used
  only for DHSS=True mode. In case something breaks, it will fail to
  create new resources such as share servers and share networks.
  Existing resources should be fine and new shares should still be
  created fine in existing share servers and share networks. In case of
  a regression, the previous funcionality can be restored through
  package downgrade.

  [Other Info]

  This is only for Jammy/Yoga as part of SRU LP#2074504.

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