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[Bug 1544861] Re: LBaaS: connection limit does not work with HA Proxy

To: yahoo-eng-team@xxxxxxxxxxxxxxxxxxx
From: OpenStack Infra <1544861@xxxxxxxxxxxxxxxxxx>
Date: Thu, 21 Jul 2016 10:18:59 -0000
Reply-to: Bug 1544861 <1544861@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

Reviewed:  https://review.openstack.org/341806
Committed: https://git.openstack.org/cgit/openstack/neutron-lbaas/commit/?id=56b8a621509af9688e6fcaa98e511702d68ba0b2
Submitter: Jenkins
Branch:    master

commit 56b8a621509af9688e6fcaa98e511702d68ba0b2
Author: Dustin Lundquist <dustin@xxxxxxxxxxxx>
Date:   Wed Jul 13 13:54:44 2016 -0700

    haproxy ns driver: set global haproxy maxconn
    
    Haproxy uses two separate maxconn values: the maxconn setting in the
    global context is used to adjust file descriptor limits and allocate
    resources, while the maxconn setting in the frontend context controls
    if additional connections are accepted on that frontend.
    
    This patch adds a maxconn to the global context equal to the sum of the
    connection limit on each listener.
    
    Change-Id: I950abaed780d7df33f0ab5c682bf583aa581889f
    Closes-Bug: 1544861


** Changed in: neutron
       Status: In Progress => Fix Released

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https://bugs.launchpad.net/bugs/1544861

Title:
  LBaaS: connection limit does not work with HA Proxy

Status in neutron:
  Fix Released

Bug description:
  connection limit does not work with HA Proxy.

  It sets at frontend section like:

  frontend 75a12b66-9d2a-4a68-962e-ec9db8c3e2fb
          option httplog
          capture cookie JSESSIONID len 56
          bind 192.168.10.20:80
          mode http
          default_backend fb8ba6e3-71a4-47dd-8a83-2978bafea6e7
          maxconn 50000
          option forwardfor

  But above configuration does not work.
  It should be set at global section like:

  global
          daemon
          user nobody
          group haproxy
          log /dev/log local0
          log /dev/log local1 notice
          stats socket /var/lib/neutron/lbaas/fb8ba6e3-71a4-47dd-8a83-2978bafea6e7/sock mode 0666 level user
          maxconn 50000

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