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[Launchpad Bug Tracker <1359651@xxxxxxxxxxxxxxxxxx>]

[Expired for OpenStack Compute (nova) because there has been no activity
for 60 days.]

** Changed in: nova
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/1359651

Title:
  xenapi: still get MAP_DUPLICATE_KEY in some edge cases

Status in OpenStack Compute (nova):
  Expired

Bug description:
  Older version of XenServer require us to keep the live copy of
  xenstore updated in sync with the copy of xenstore recorded in the
  xenapi metadata for that VM.

  Code inspection has shown that we don't consistently keep those two
  copies up to date.

  While its hard to reproduce this errors, (add_ip_address_to_vm seems
  particuarly likely to hit issues), it seems best to tidy up the
  xenstore writing code so we consistently add/remove keys from the live
  copy and the copy in xenapi.

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