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[Bug 1372305] Re: Haproxy restart leads to incorrect Ceilometer LBaas related statistics

To: yahoo-eng-team@xxxxxxxxxxxxxxxxxxx
From: Eugene Nikanorov <enikanorov@xxxxxxxxxxxx>
Date: Sun, 28 Sep 2014 12:55:46 -0000
Reply-to: Bug 1372305 <1372305@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

Considering that major change is going to happen to lbaas api and
implementation, i wonder if it makes sense to put efforts into fixing
this

** Tags added: lbaas

** Changed in: neutron
   Importance: Undecided => Low

** Changed in: neutron
       Status: New => Opinion

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https://bugs.launchpad.net/bugs/1372305

Title:
  Haproxy restart leads to incorrect Ceilometer LBaas related statistics

Status in OpenStack Neutron (virtual network service):
  Opinion

Bug description:
  Ceilometer uses LBaaS API to collect load balance related statistics
  like bytes-in and bytes-out, then LBaaS plugin collects such counters
  from haproxy process via stats socket. However, when LBaaS object is
  updated, LBaaS agent will reconfigure haproxy and then restart haproxy
  process. All the counters will be cleared, which leads to incorrect
  statistics.

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