<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Yeah we run a multitude of versions at the same time. We usually run N and N-1 in the same env but have also done N-2 (eg. Havana, Icehouse and Juno)<div class=""><br class=""></div><div class="">Currently we are mainly Juno (keystone, heat, ceilometer, cinder) with a couple of icehouse things lying around. We are in the progress of upgrading to Kilo so some of our nova control is kilo now.<br class=""><div class=""><br class=""></div><div class="">With clients the only issue I’ve had is with the designate client not being backwards compatible between icehouse and juno.</div><div class="">Ceilometer changed the way they signed messaged between Icehouse and Juno which was a pain so we had to set up parallel virtual hosts and collectors to push it into mongo.</div><div class=""><br class=""></div><div class="">All the APIs are pretty stable so it shouldn’t really matter what version of say keystone can work with what version of nova etc. </div><div class="">We basically take it for granted now although of course test in your own env.</div><div class=""><br class=""></div><div class="">With nova make sure you set upgrade_levels so your nova control can talk to you computes that are on version N-1 etc.</div><div class=""><br class=""></div><div class="">Sam</div><div class=""><br class=""></div><div class=""><br class=""><div><blockquote type="cite" class=""><div class="">On 27 Aug 2015, at 3:09 am, David Medberry <<a href="mailto:openstack@medberry.net" class="">openstack@medberry.net</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div dir="ltr" class="">Hi Eren,<div class=""><br class=""></div><div class="">I'm pretty sure NECTaR is doing diff versions at different sites in a widely distributed way.</div><div class=""><br class=""></div><div class=""><a href="https://www.openstack.org/user-stories/nectar/" class="">https://www.openstack.org/user-stories/nectar/</a><br class=""></div><div class=""><br class=""></div><div class="">I've cc'd Sam as well. He's your man.</div></div><div class="gmail_extra"><br class=""><div class="gmail_quote">On Wed, Aug 26, 2015 at 5:24 AM, Eren Türkay <span dir="ltr" class=""><<a href="mailto:erent@skyatlas.com" target="_blank" class="">erent@skyatlas.com</a>></span> wrote:<br class=""><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hello operators,<br class="">
<br class="">
I am wondering if anyone is using different versions of Openstack in different<br class="">
sites.<br class="">
<br class="">
We have our first site which is Juno, and we are now having another site where<br class="">
we are planning to deploy Kilo. Does anyone have experience with different<br class="">
versions of installation? Particularly, our Horizon and other clients will be<br class="">
Juno, but they will talk to secondary site which is Kilo. Inferring from the<br class="">
release notes, Kilo API looks backward compatible with Juno, so I'm a little<br class="">
optimistic about it but still I'm not sure.<br class="">
<br class="">
Any help is appreciated,<br class="">
Eren<br class="">
<span class="HOEnZb"><font color="#888888" class=""><br class="">
--<br class="">
Eren Türkay, System Administrator<br class="">
<a href="https://skyatlas.com/" rel="noreferrer" target="_blank" class="">https://skyatlas.com/</a> | <a href="tel:%2B90%20850%20885%200357" value="+908508850357" class="">+90 850 885 0357</a><br class="">
<br class="">
Yildiz Teknik Universitesi Davutpasa Kampusu<br class="">
Teknopark Bolgesi, D2 Blok No:107<br class="">
Esenler, Istanbul Pk.34220<br class="">
<br class="">
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