[Bug 1619246] Re: Capacity filter and weigher fails when volume has no volume type

[OpenStack Infra]

Reviewed:  https://review.opendev.org/727740
Committed: https://git.openstack.org/cgit/openstack/cinder/commit/?id=6727f5cbeafb02b24022e54fa6e53350d9fb956b
Submitter: Zuul
Branch:    stable/stein

commit 6727f5cbeafb02b24022e54fa6e53350d9fb956b
Author: Ivan Kolodyazhny <e0ne at e0ne.info>
Date:   Wed May 13 13:59:43 2020 +0300

    Fix DriverFilter to accept None volume type
    
    Change Icfc6ba5f47c3a61b49cbec5110ef7df05eb47195 fixes CapacityFilter
    only. We need to do it for DriverFilter too.
    
    We need this patch only for releases before Train when we can create a
    volume without volume type.
    
    Change-Id: I3d6166c0fcdbb1d78b69ed4cc648542ac10342bd
    Related-Bug: 1619246


** Tags added: in-stable-stein

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https://bugs.launchpad.net/bugs/1619246

Title:
  Capacity filter and weigher fails when volume has no volume type

Status in Cinder:
  Fix Released
Status in cinder package in Ubuntu:
  Fix Released

Bug description:
  Since patch [1] our multinode grenade job started to fail scheduler
  with [2].

  Fun part - this isn't related to upgrades at all. The multinode
  grenade job is actually running without default_volume_type set in
  cinder.conf, so volume_type is None and the filter doesn't take such
  possibility into account.

  [1] https://review.openstack.org/#/c/315352
  [2] http://paste.openstack.org/show/565667/

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