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[Bug 1194579] Re: Race condition exists for default security group creation

To: yahoo-eng-team@xxxxxxxxxxxxxxxxxxx
From: Thierry Carrez <thierry.carrez+lp@xxxxxxxxx>
Date: Thu, 05 Feb 2015 14:40:42 -0000
Reply-to: Bug 1194579 <1194579@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

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

** Changed in: neutron
    Milestone: None => kilo-2

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https://bugs.launchpad.net/bugs/1194579

Title:
  Race condition exists for default security group creation

Status in OpenStack Neutron (virtual network service):
  Fix Released

Bug description:
  A race condition exists in the creation of a tenant's default security
  group, since the uniqueness is guaranteed by the name and the check is
  done in code.  As a result, multiple requests have the potential to
  create multiple default security groups.

  It probably makes sense to ensure the uniqueness of the security group
  name and tenant id relationship via a constraint on the model.

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