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[Bug 1134493] Re: Add retry on upload_vhd in xapi glance plugin

To: yahoo-eng-team@xxxxxxxxxxxxxxxxxxx
From: Thierry Carrez <thierry.carrez+lp@xxxxxxxxx>
Date: Wed, 20 Mar 2013 16:10:11 -0000
Reply-to: Bug 1134493 <1134493@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

** Changed in: nova
       Status: Fix Committed => Fix Released

** Changed in: nova
    Milestone: None => grizzly-rc1

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https://bugs.launchpad.net/bugs/1134493

Title:
  Add retry on upload_vhd in xapi glance plugin

Status in OpenStack Compute (Nova):
  Fix Released

Bug description:
  Add a retry in the xapi glance plugin to handle transient issues when
  uploading the vhd.

  An example issue we're seeing is a connection timeout:

  ['XENAPI_PLUGIN_FAILURE', 'upload_vhd', 'error', "(110, 'Connection
  timed out')"]

  To work around transient issues such as a connection timeout, I think
  the glance plugin should retry the upload a small number of times
  before outright failing.

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