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[Bug 1978827] [NEW] rebuild instance continues to flush old mpath on failure

To: yahoo-eng-team@xxxxxxxxxxxxxxxxxxx
From: norman shen <1978827@xxxxxxxxxxxxxxxxxx>
Date: Wed, 15 Jun 2022 13:27:21 -0000
Reply-to: Bug 1978827 <1978827@xxxxxxxxxxxxxxxxxx>
Sender: noreply@xxxxxxxxxxxxx

Public bug reported:

Description
===========

When rebuilding instance failed due to a potentially problematic cinder API,
then when trying to rebuild again, nova will try to disconnect volume again
although the path has already clearer. It is generally OK for rbd backend, but
it could cause problem for FC san if new volume got attached during two consecutive rebuilds
which could consume the previous lun id.


Environment
============

It could happen for all versions.

** Affects: nova
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1978827

Title:
  rebuild instance continues to flush old mpath on failure

Status in OpenStack Compute (nova):
  New

Bug description:
  Description
  ===========

  When rebuilding instance failed due to a potentially problematic cinder API,
  then when trying to rebuild again, nova will try to disconnect volume again
  although the path has already clearer. It is generally OK for rbd backend, but
  it could cause problem for FC san if new volume got attached during two consecutive rebuilds
  which could consume the previous lun id.

  
  Environment
  ============

  It could happen for all versions.

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