[Bug 1766189] Re: cinder-volume is marked down during image uploads

[James Page]

Note that when installing from pip you must observer the upper-
constraints.txt produced as part of global requirements from OpenStack,
otherwise upper bounds are not observered and you'll just get the latest
of everything from pip.

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https://bugs.launchpad.net/bugs/1766189

Title:
  cinder-volume is marked down during image uploads

Status in cinder package in Ubuntu:
  Incomplete

Bug description:
  cinder-volume-Agent is marked as down if upload of volume needs longer
  than heartbeat-timeout.

  steps to reproduce:

  1. create a big Volume (f.e. 100G)
  2. fill the volume with data to avoid too fast upload
  3. tell cinder to upload the volume as image
  4. watch cinder-volume-agent being marked as DOWN, because noch heartbeat-update is done during upload.

  I already created this bug in upstream/cinder bug/1764740, but after
  some research I found its not happening if I build from upstream.

  Did further tests and it looks like the problem is caused by some kind
  of python module dep. problem, because if I execute

    pip install --system -U -r
  https://raw.githubusercontent.com/openstack/cinder/stable/pike/requirements.txt

  the bug is gone.

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