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[Adam Gandelman <1395688@xxxxxxxxxxxxxxxxxx>]

** Also affects: keystone/juno
   Importance: Undecided
       Status: New

** Changed in: keystone/juno
   Importance: Undecided => Medium

** Changed in: keystone/juno
       Status: New => Fix Committed

** Changed in: keystone/juno
    Milestone: None => 2014.2.3

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https://bugs.launchpad.net/bugs/1395688

Title:
  Memcache distributed lock ruins HA

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

Bug description:
  Current memcache lock's polling interval calculation locks execution for too long.
  In concurrent environment when distributed locking is actively used the chance of 8 subsequent lock collisions is high enough to begin failing authorisation due to timeout.

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