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<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497D">Is it a same thing like openstack-neat project?
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497D"><a href="http://openstack-neat.org/">http://openstack-neat.org/</a><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497D">I am curious about why Neat was not accepted previously.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497D">-Hao<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Oleg Gelbukh [mailto:ogelbukh@mirantis.com]
<br>
<b>Sent:</b> Thursday, April 10, 2014 3:48 PM<br>
<b>To:</b> OpenStack Development Mailing List (not for usage questions)<br>
<b>Subject:</b> Re: [openstack-dev] [nova] Dynamic scheduling<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US">Hello, Jay,<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US">As a fork of nova-scheduler, Gantt most likely will handle initial placement. However, even nova-scheduler now supports some runtime operations (for example, scheduling of evacuated/migrated instances). <o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US">Given the runtime scheduling arises in this list regularly, I guess such features will make their way into Scheduler service eventually.<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US">--<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US">Best regards,<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US">Oleg Gelbukh<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><span lang="EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US">On Wed, Apr 9, 2014 at 7:47 PM, Jay Lau <<a href="mailto:jay.lau.513@gmail.com" target="_blank">jay.lau.513@gmail.com</a>> wrote:<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><span lang="EN-US">@Oleg, Till now, I'm not sure the target of Gantt, is it for initial placement policy or run time policy or both, can you help clarify?<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US">@Henrique, not sure if you know IBM PRS (Platform Resource Scheduler) [1], we have finished the "dynamic scheduler" in our Icehouse version (PRS 2.2), it has exactly the same feature as your described, we are planning
a live demo for this feature in Atlanta Summit. I'm also writing some document for run time policy which will cover more run time policies for OpenStack, but not finished yet. (My shame for the slow progress). The related blueprint is [2], you can also get
some discussion from [3]<br>
<br>
[1] <a href="http://www-01.ibm.com/common/ssi/cgi-bin/ssialias?infotype=AN&subtype=CA&htmlfid=897/ENUS213-590&appname=USN" target="_blank">
http://www-01.ibm.com/common/ssi/cgi-bin/ssialias?infotype=AN&subtype=CA&htmlfid=897/ENUS213-590&appname=USN</a><br>
[2] <a href="https://blueprints.launchpad.net/nova/+spec/resource-optimization-service" target="_blank">
https://blueprints.launchpad.net/nova/+spec/resource-optimization-service</a><o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><span lang="EN-US">[3] <a href="http://markmail.org/~jaylau/OpenStack-DRS" target="_blank">
http://markmail.org/~jaylau/OpenStack-DRS</a><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US">Thanks.<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><span lang="EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US">2014-04-09 23:21 GMT+08:00 Oleg Gelbukh <<a href="mailto:ogelbukh@mirantis.com" target="_blank">ogelbukh@mirantis.com</a>>:<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US">Henrique,<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US">You should check out Gantt project [1], it could be exactly the place to implement such features. It is a generic cross-project Scheduler as a Service forked from Nova recently.<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US">[1] <a href="https://github.com/openstack/gantt" target="_blank">https://github.com/openstack/gantt</a><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US">--<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US">Best regards,<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US">Oleg Gelbukh<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US">Mirantis Labs<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><span lang="EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US">On Wed, Apr 9, 2014 at 6:41 PM, Henrique Truta <<a href="mailto:henriquecostatruta@gmail.com" target="_blank">henriquecostatruta@gmail.com</a>> wrote:<o:p></o:p></span></p>
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<span lang="EN-US" style="font-size:10.0pt;font-family:"Arial","sans-serif"">Hello, everyone!
</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p style="margin:0cm;margin-bottom:.0001pt;text-align:justify;text-justify:inter-ideograph">
<span lang="EN-US" style="font-size:10.0pt;font-family:"Arial","sans-serif"">I am currently a graduate student and member of a group of contributors to OpenStack. We believe that a dynamic scheduler could improve the efficiency of an OpenStack cloud, either
by rebalancing nodes to maximize performance or to minimize the number of active hosts, in order to minimize energy costs. Therefore, we would like to propose a dynamic scheduling mechanism to Nova. The main idea is using the Ceilometer information (e.g. RAM,
CPU, disk usage) through the ceilometer-client and dinamically decide whether a instance should be live migrated.</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p style="margin:0cm;margin-bottom:.0001pt;text-align:justify;text-justify:inter-ideograph">
<span lang="EN-US" style="font-size:10.0pt;font-family:"Arial","sans-serif"">This might me done as a Nova periodic task, which will be executed every once in a given period or as a new independent project. In both cases, the current Nova scheduler will not
be affected, since this new scheduler will be pluggable. We have done a search and found no such initiative in the OpenStack BPs. Outside the community, we found only a recent IBM announcement for a similiar feature in one of its cloud products.</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p style="margin:0cm;margin-bottom:.0001pt;text-align:justify;text-justify:inter-ideograph">
<span lang="EN-US" style="font-size:10.0pt;font-family:"Arial","sans-serif"">A possible flow is: In the new scheduler, we periodically make a call to Nova, get the instance list from a specific host and, for each instance, we make a call to the ceilometer-client
(e.g. $ ceilometer statistics -m cpu_util -q resource=$INSTANCE_ID) and then, according to some specific parameters configured by the user, analyze the meters and do the proper migrations.</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p style="margin:0cm;margin-bottom:.0001pt;text-align:justify;text-justify:inter-ideograph">
<span lang="EN-US" style="font-size:10.0pt;font-family:"Arial","sans-serif"">Do you have any comments or suggestions?</span><span lang="EN-US"><br clear="all">
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><span lang="EN-US" style="color:#999999">--<br>
Ítalo Henrique Costa Truta<br>
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</span><span lang="EN-US"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><span lang="EN-US">_______________________________________________<br>
OpenStack-dev mailing list<br>
<a href="mailto:OpenStack-dev@lists.openstack.org" target="_blank">OpenStack-dev@lists.openstack.org</a><br>
<a href="http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev" target="_blank">http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev</a><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><span lang="EN-US"><br>
_______________________________________________<br>
OpenStack-dev mailing list<br>
<a href="mailto:OpenStack-dev@lists.openstack.org" target="_blank">OpenStack-dev@lists.openstack.org</a><br>
<a href="http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev" target="_blank">http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev</a><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="color:#888888"><br>
<br clear="all">
<br>
<span class="hoenzb">-- <o:p></o:p></span></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><span lang="EN-US" style="color:#888888">Thanks,</span><span lang="EN-US"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="color:#888888">Jay<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><span lang="EN-US"><br>
_______________________________________________<br>
OpenStack-dev mailing list<br>
<a href="mailto:OpenStack-dev@lists.openstack.org">OpenStack-dev@lists.openstack.org</a><br>
<a href="http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev" target="_blank">http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev</a><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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