<div dir="ltr">Hi Sam,<div><br></div><div>The question was based on the bug <a href="https://bugs.launchpad.net/neutron/+bug/1242351" target="_blank">https://bugs.launchpad.net/neutron/+bug/1242351</a></div><div>Where it is a real discrepancy: you bring the balancer down (and it's really undeployed) but still remains active.</div>
<div>I guess I need to put it to PENDING_CREATE for haproxy, not PENDING_UPDATE since this represents deployment status.</div><div>In fact i think this could be driver-specific and differ from driver to driver.</div><div>
<br></div><div>Thanks,</div><div>Eugene.</div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Thu, Oct 31, 2013 at 1:36 PM, Samuel Bercovici <span dir="ltr"><<a href="mailto:SamuelB@radware.com" target="_blank">SamuelB@radware.com</a>></span> wrote:<br>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Hi,<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">I think that the current implementation is fine.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">This are two different aspects.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">The status describes whether the last a-sync activity is active or whether it is not.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">The admin status describes what the user wishes for the object status to be.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Follows an example: If I
<b>update</b> the VIP with admin status down, the status should be moved to PENDING_UPDATE, when the driver implements this than the status with be back to being ACTIVE.
<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">The Term ACTIVE, might be wrong in that it might be renamed to something like APPLIED.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Regards,<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> -Sam.<u></u><u></u></span></p><div class="im">
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Eugene Nikanorov [mailto:<a href="mailto:enikanorov@mirantis.com" target="_blank">enikanorov@mirantis.com</a>]
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<b>Sent:</b> Tuesday, October 29, 2013 11:19 AM<br>
<b>To:</b> OpenStack Development Mailing List<br>
<b>Subject:</b> [openstack-dev] [Neutron][LBaaS] Object status and admin_state_up<u></u><u></u></span></p>
<p class="MsoNormal"><u></u> <u></u></p>
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<p class="MsoNormal">Hi folks,<u></u><u></u></p><div><div class="h5">
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<p class="MsoNormal"><u></u> <u></u></p>
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<p class="MsoNormal">Currently there are two attributes of vips/pools/members that represent a status: 'status' and 'admin_state_up'.<u></u><u></u></p>
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<p class="MsoNormal"><u></u> <u></u></p>
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<p class="MsoNormal">The first one is used to represent deployment status and can be PENDING_CREATE, ACTIVE, PENDING_DELETE, ERROR.<u></u><u></u></p>
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<p class="MsoNormal">We also have admin_state_up which could be True or False.<u></u><u></u></p>
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<p class="MsoNormal"><u></u> <u></u></p>
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<p class="MsoNormal">I'd like to know your opinion on how to change 'status' attribute based on admin_state_up changes.<u></u><u></u></p>
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<p class="MsoNormal">For instance. If admin_state_up is updated to be False, how do you think 'status' should change?<u></u><u></u></p>
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<p class="MsoNormal"><u></u> <u></u></p>
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<p class="MsoNormal">Also, speaking of reference implementation (HAProxy), changing vip or pool admin_state_up to False effectively destroys the balancer (undeploys it), while the objects remain in ACTIVE state.<u></u><u></u></p>
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<p class="MsoNormal">There are two options to fix this discrepancy:<u></u><u></u></p>
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<p class="MsoNormal">1) Change status of vip/pool to PENDING_CREATE if admin_state_up changes to False<u></u><u></u></p>
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<p class="MsoNormal">2) Don't destroy the loadbalancer and use HAProxy capability to disable frontend and backend while leave vip/pool in ACTIVE state<u></u><u></u></p>
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<p class="MsoNormal"><u></u> <u></u></p>
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<p class="MsoNormal">Please share your opinion.<u></u><u></u></p>
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<p class="MsoNormal"><u></u> <u></u></p>
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<p class="MsoNormal">Thanks,<u></u><u></u></p>
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<p class="MsoNormal">Eugene.<u></u><u></u></p>
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