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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/1387401

Title:
  token_flush can hang if lots of tokens

Status in OpenStack Identity (Keystone):
  Fix Released
Status in Keystone juno series:
  Fix Released

Bug description:
  
  If you've got a system that can generate lots of tokens, token_flush can hang. For DB2, this happens if you create > 100 tokens in a second (for mysql it's 1000 tokens in a second). The query to get the time to delete returns the 100th timestamp which is the same as the min timestamp, and then it goes to delete < min timestamp and none match, so none are deleted, then it gets stuck in a loop since the function always returns the min timestamp.

  This could be fixed easily by using <= rather than < for the deletion
  comparison.

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