<div dir="ltr">We're looking at two workloads with different usage patterns: Type A follows a typical cyclical performance pattern (high/low day/night). Type B represents a consistent pattern (constant/predictable pattern). We want a way to ensure Patterns A will have an affinity to stick together, Patterns B with its own affinity to stick together and an Anti-Affinity policy for the two Types to avoid being hosted on the same machine (not necessarily prevention but avoidance).<div><br></div><div>Does that make sense?</div><div><br></div><div>//adam</div></div><div class="gmail_extra"><br clear="all"><div><div class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><font><div style="font-family:arial;font-size:small"><b><i><br>Adam Lawson</i></b></div><div><font><font color="#666666" size="1"><div style="font-family:arial"><br></div><div style="font-family:arial;font-size:small">AQORN, Inc.</div><div style="font-family:arial;font-size:small">427 North Tatnall Street</div><div style="font-family:arial;font-size:small">Ste. 58461</div><div style="font-family:arial;font-size:small">Wilmington, Delaware 19801-2230</div><div style="font-family:arial;font-size:small">Toll-free: (844) 4-AQORN-NOW ext. 101</div><div style="font-family:arial;font-size:small">International: +1 302-387-4660</div></font><font color="#666666" size="1"><div style="font-family:arial;font-size:small">Direct: +1 916-246-2072</div></font></font></div></font></div></div></div></div></div></div>
<br><div class="gmail_quote">On Wed, Mar 2, 2016 at 3:08 PM, Kris G. Lindgren <span dir="ltr"><<a href="mailto:klindgren@godaddy.com" target="_blank">klindgren@godaddy.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<div>You can set attributes on flavors that must match the attributes on hosts or the host aggregates. So you can basically always make sure a specific flavors goes to a specific compute node or type (like disks=ssd or class=gpu). Look at nova flavor extra_specs
documentation and the aggregate_Instance<span style="font-style:italic">_</span>extra_specs under the scheduler options.</div>
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<div><font color="#000000"><font face="Calibri"><span style="font-size:14px">Kris Lindgren</span></font></font></div>
<div><font color="#000000"><font face="Calibri"><span style="font-size:14px">Senior Linux Systems Engineer</span></font></font></div>
<div><font color="#000000"><font face="Calibri"><span style="font-size:14px">GoDaddy</span></font></font></div>
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<span style="font-weight:bold">From: </span>"Fox, Kevin M" <<a href="mailto:Kevin.Fox@pnnl.gov" target="_blank">Kevin.Fox@pnnl.gov</a>><br>
<span style="font-weight:bold">Date: </span>Wednesday, March 2, 2016 at 3:58 PM<br>
<span style="font-weight:bold">To: </span>Adam Lawson <<a href="mailto:alawson@aqorn.com" target="_blank">alawson@aqorn.com</a>>, "<a href="mailto:openstack-operators@lists.openstack.org" target="_blank">openstack-operators@lists.openstack.org</a>" <<a href="mailto:openstack-operators@lists.openstack.org" target="_blank">openstack-operators@lists.openstack.org</a>><br>
<span style="font-weight:bold">Subject: </span>Re: [Openstack-operators] Setting affinity based on instance type<br>
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<div style="direction:ltr;font-family:Tahoma;color:#000000;font-size:10pt">you usually do that on an instance level with server groups. do you have an example where you might want to do it at the flavor level?<br>
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Kevin<br>
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<div style="direction:ltr"><font color="#000000" face="Tahoma" size="2"><b>From:</b> Adam Lawson [<a href="mailto:alawson@aqorn.com" target="_blank">alawson@aqorn.com</a>]<br>
<b>Sent:</b> Wednesday, March 02, 2016 2:48 PM<br>
<b>To:</b> <a href="mailto:openstack-operators@lists.openstack.org" target="_blank">openstack-operators@lists.openstack.org</a><br>
<b>Subject:</b> [Openstack-operators] Setting affinity based on instance type<br>
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<div dir="ltr">I'm sure this is possible but I'm trying to find the info I need in the docs so I figured I'd pitch this to you guys while I continue looking:
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<div>Is it possible to set an affinity/anti-affinity policy to ensure instance Type A is weighted for/against co-location on the same physical host with instance Type B?
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<div>Basically I have no requirement for server-group affinity but rather to ensure specific workloads are as separate as possible.</div>
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<div>Thoughts?</div>
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Adam Lawson</i></b></div>
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<div style="font-family:arial;font-size:small">AQORN, Inc.</div>
<div style="font-family:arial;font-size:small">427 North Tatnall Street</div>
<div style="font-family:arial;font-size:small">Ste. 58461</div>
<div style="font-family:arial;font-size:small">Wilmington, Delaware 19801-2230</div>
<div style="font-family:arial;font-size:small">Toll-free: (844) 4-AQORN-NOW ext. 101</div>
<div style="font-family:arial;font-size:small">International: <a href="tel:%2B1%20302-387-4660" value="+13023874660" target="_blank">+1 302-387-4660</a></div>
</font><font color="#666666" size="1">
<div style="font-family:arial;font-size:small">Direct: <a href="tel:%2B1%20916-246-2072" value="+19162462072" target="_blank">+1 916-246-2072</a></div>
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