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[Bug 1174998] Re: Avoid all() query when generating tunnel id

To: yahoo-eng-team@xxxxxxxxxxxxxxxxxxx
From: Thierry Carrez <thierry.carrez+lp@xxxxxxxxx>
Date: Wed, 29 May 2013 11:08:54 -0000
Reply-to: Bug 1174998 <1174998@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

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

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https://bugs.launchpad.net/bugs/1174998

Title:
  Avoid all() query when generating tunnel id

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

Bug description:
  There is no need for: https://github.com/openstack/quantum/blob/master/quantum/plugins/openvswitch/ovs_db_v2.py#L371
  Sql Alchemy could be used to extract directly the max value from tunnel.id, thus saving time especially when several hosts are employed.

  This was observed by Jason in a recent review.
  It's a negligible improvement, but a very easy one.

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