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[Thierry Carrez <thierry.carrez+lp@xxxxxxxxx>]

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

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https://bugs.launchpad.net/bugs/1418868

Title:
  duplicate operations when deleting tokens

Status in OpenStack Identity (Keystone):
  Fix Released

Bug description:
  In token.persistence.core:PersistenceManager.delete_tokens method, we would:
  1. List tokens that going to be deleted
  2. Delete tokens, note that here we wouldn't use the data got before
  3. Loop the tokens got before and invalidate token cache
  There are two issues here:
  1. Tokens got before may not equal with tokens that deleted
  2. According to current code, we do list twice both in sql and kvs backends
  Refer to:
  https://github.com/openstack/keystone/blob/master/keystone/token/persistence/core.py#L116

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