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[Bug 1252506] Re: _recycle_ip slow, multiple port deletes begin timing out

To: yahoo-eng-team@xxxxxxxxxxxxxxxxxxx
From: Alan Pevec <1252506@xxxxxxxxxxxxxxxxxx>
Date: Mon, 22 Sep 2014 22:33:57 -0000
Reply-to: Bug 1252506 <1252506@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

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

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https://bugs.launchpad.net/bugs/1252506

Title:
  _recycle_ip slow, multiple port deletes begin timing out

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

Bug description:
  I've found that port delete fails if there are a number of port
  delete/create operations happening at once.

  It seems to depend on database load but I've seen as few as about 8
  parallel port deletes begin to timeout waiting for the appropriate
  locks inside of the _recycle_ip method in
  neutron/db/db_base_plugin_v2.py.

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