<div dir="ltr">Right, it could be solved by pool's member weights and appropriate scheduling algorithm.<div><br></div><div>Eugene.</div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Thu, Mar 20, 2014 at 9:21 PM, Jorge Miramontes <span dir="ltr"><<a href="mailto:jorge.miramontes@rackspace.com" target="_blank">jorge.miramontes@rackspace.com</a>></span> wrote:<br>
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<div>The use case from our customers has been mostly for database (MySql) load balancing. If the master goes down then they want another master/slave on standby ready to receive traffic. In the simplest case, I think Neutron can achieve this with 2 pools with
 1 node each. If pool #1 goes down then pool #2 becomes active. We currently solve this with the notion of primary and secondary nodes. If all primary nodes go down then secondary nodes become active.</div>
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<div>Cheers,</div>
<div style="font-family:Calibri,sans-serif"><font color="#000000"><font face="Calibri">--Jorge</font></font></div>
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<span style="font-weight:bold">From: </span>Eugene Nikanorov <<a href="mailto:enikanorov@mirantis.com" target="_blank">enikanorov@mirantis.com</a>><br>
<span style="font-weight:bold">Reply-To: </span>"OpenStack Development Mailing List (not for usage questions)" <<a href="mailto:openstack-dev@lists.openstack.org" target="_blank">openstack-dev@lists.openstack.org</a>><br>

</div><span style="font-weight:bold">Date: </span>Thursday, March 20, 2014 11:35 AM<div class=""><br>
<span style="font-weight:bold">To: </span>"OpenStack Development Mailing List (not for usage questions)" <<a href="mailto:openstack-dev@lists.openstack.org" target="_blank">openstack-dev@lists.openstack.org</a>><br>

<span style="font-weight:bold">Subject: </span>Re: [openstack-dev] [Neutron][LBaaS] Requirements Wiki<br>
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<li class="MsoNormal"><span style="font-size:10.5pt;font-family:Calibri,sans-serif">Active/Passive Failover
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<li class="MsoNormal"><span style="font-size:10.5pt;font-family:Calibri,sans-serif">I think this is solved with multiple pools.<u></u><u></u></span></li></ul>
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<p class="MsoNormal"><span style="font-size:11pt;color:rgb(31,73,125);font-family:Calibri,sans-serif">The multiple pools support that is coming with L7 rules is to support content-switching based on L7 HTTP information (URL, headers, etc.). There
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<div>I'm not sure that's the priority. It depends on if this is widely supported among vendors.</div>
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<div class="gmail_extra">A commercial load balancer that doesn't have high availability features? Is there really such a thing still being sold in 2014? ;)</div>
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<div>I might be missing something fundamental here, but we're talking about 'additional' HA at pool level? Why not just add nodes to the pool?</div>
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<div class="gmail_extra">Also, Jorge-- thanks for creating that page! I've made a few additions to it as well that I'd love to see prioritized.</div>
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<div class="gmail_extra">Stephen</div>
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-- <br>
<span></span>Stephen Balukoff <br>
Blue Box Group, LLC <br>
(800)613-4305 x807 </font></span></div>
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