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[Bug 1645810] Re: neutron api update port and agent rpc update port may cause table port deadlock

To: yahoo-eng-team@xxxxxxxxxxxxxxxxxxx
From: huangyunpeng <huangyunpeng@xxxxxxxxxx>
Date: Wed, 30 Nov 2016 01:54:43 -0000
Reply-to: Bug 1645810 <1645810@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

** Project changed: fuel-plugin-contrail => neutron

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https://bugs.launchpad.net/bugs/1645810

Title:
  neutron  api update port and agent rpc  update port  may cause table
  port deadlock

Status in neutron:
  New

Bug description:
  the test scenario as follow step :

  1,server api update some attributes of port ,like hostid

  2,then agent receive rpc message ,handler  update port attributes
  ,like statues

  3,at the same time, server update the port when agent rpc update port

  4,it will result in db port deadlock

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