yahoo-eng-team team mailing list archive

[Fabian Zimmermann <1890244@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

Description
===========
We created a server group and started some instances in it.

Later we removed the server group.

Some time later, we had to evacuate these instances, but this failed, because the
scheduler removed all available hosts during filtering.

Steps to reproduce
==================
* create a server group
* start some instances in this group
* delete the server group
* ( hard poweroff your hypervisor )
* evacuate the instances

Expected result
===============
The instances are evacuated

Actual result
=============
The instances run into ERROR-state, because the server group is not found.

Environment
===========
* Kolla deployed OpenStack Train
* Ubuntu 18.04 / KVM + Libvirt

Logs & Configs
==============

scheduler tells:

 Filtering removed all hosts for the request with instance ID
'adddf2c9-0252-4463-a97c-f1ec209d9f49'. Filter results:
['AvailabilityZoneFilter: (start: 2, end: 2)', 'ComputeFilter: (start:
2, end: 2)', 'ComputeCapabilitiesFilter: (start: 2, end: 2)',
'ImagePropertiesFilter: (start: 2, end: 2)',
'ServerGroupAntiAffinityFilter: (start: 2, end: 2)',
'ServerGroupAffinityFilter: (start: 2, end: 0)']

instance show:

 | fault | {'code': 404, 'created': '2020-08-04T06:13:41Z', 'message':
'Instance group 7e84dc57-de05-4c92-9e3b-6e2d06c1d85b could not be
found.'} |

** Affects: nova
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1890244

Title:
  nova scheduler should ignore removed groups

Status in OpenStack Compute (nova):
  New

Bug description:
  Description
  ===========
  We created a server group and started some instances in it.

  Later we removed the server group.

  Some time later, we had to evacuate these instances, but this failed, because the
  scheduler removed all available hosts during filtering.

  Steps to reproduce
  ==================
  * create a server group
  * start some instances in this group
  * delete the server group
  * ( hard poweroff your hypervisor )
  * evacuate the instances

  Expected result
  ===============
  The instances are evacuated

  Actual result
  =============
  The instances run into ERROR-state, because the server group is not found.

  Environment
  ===========
  * Kolla deployed OpenStack Train
  * Ubuntu 18.04 / KVM + Libvirt

  Logs & Configs
  ==============

  scheduler tells:

   Filtering removed all hosts for the request with instance ID
  'adddf2c9-0252-4463-a97c-f1ec209d9f49'. Filter results:
  ['AvailabilityZoneFilter: (start: 2, end: 2)', 'ComputeFilter: (start:
  2, end: 2)', 'ComputeCapabilitiesFilter: (start: 2, end: 2)',
  'ImagePropertiesFilter: (start: 2, end: 2)',
  'ServerGroupAntiAffinityFilter: (start: 2, end: 2)',
  'ServerGroupAffinityFilter: (start: 2, end: 0)']

  instance show:

   | fault | {'code': 404, 'created': '2020-08-04T06:13:41Z', 'message':
  'Instance group 7e84dc57-de05-4c92-9e3b-6e2d06c1d85b could not be
  found.'} |

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