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[Bug 1856329] [NEW] Faults from cell DB missing in GET /servers/detail

To: yahoo-eng-team@xxxxxxxxxxxxxxxxxxx
From: Ivaylo Mitev <1856329@xxxxxxxxxxxxxxxxxx>
Date: Fri, 13 Dec 2019 16:20:01 -0000
Reply-to: Bug 1856329 <1856329@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

Public bug reported:

Description
===========
Field `fault` is empty in the response of API GET /servers/detail if the instance (hence instace_faults DB entry) is in nova cell DB.
Unlike that, for API /servers/:id fault is retrieved correctly no matter in which nova cell the instance belongs.

Steps to reproduce
==================
* Ensure two servers/instances with faults (i.e. entry in instance_faults DB table) in different Nova cells
* Invoke REST API call GET /servers/detail

Expected result
===============
The result entries for both instances should contain value for `fault` field.

Actual result
=============
`fault` is initialized only for the instance in cell 0. For the other one it's empty.

Environment
===========
1. Exact version of OpenStack you are running. See the following
Queens

2. Which hypervisor did you use?
VMware 6.5

** Affects: nova
     Importance: Undecided
         Status: Incomplete

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https://bugs.launchpad.net/bugs/1856329

Title:
  Faults from cell DB missing in GET /servers/detail

Status in OpenStack Compute (nova):
  Incomplete

Bug description:
  Description
  ===========
  Field `fault` is empty in the response of API GET /servers/detail if the instance (hence instace_faults DB entry) is in nova cell DB.
  Unlike that, for API /servers/:id fault is retrieved correctly no matter in which nova cell the instance belongs.

  Steps to reproduce
  ==================
  * Ensure two servers/instances with faults (i.e. entry in instance_faults DB table) in different Nova cells
  * Invoke REST API call GET /servers/detail

  Expected result
  ===============
  The result entries for both instances should contain value for `fault` field.

  Actual result
  =============
  `fault` is initialized only for the instance in cell 0. For the other one it's empty.

  Environment
  ===========
  1. Exact version of OpenStack you are running. See the following
  Queens

  2. Which hypervisor did you use?
  VMware 6.5

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