Open Stack

Is the [1] mentioned below open source? Interested in it :)

Also, my own opinion is nova is a cloud solution that aim to control
virtual / real machine lifecycle management   the dynamic scheduling
mechanism is something like
optimization of the cloud resource, so maybe incubate in other places is
better


Best Regards!

Kevin (Chen) Ji 纪 晨

Engineer, zVM Development, CSTL
Notes: Chen CH Ji/China/IBM at IBMCN   Internet: jichenjc at cn.ibm.com
Phone: +86-10-82454158
Address: 3/F Ring Building, ZhongGuanCun Software Park, Haidian District,
Beijing 100193, PRC



From:	Jay Lau <jay.lau.513 at gmail.com>
To:	"OpenStack Development Mailing List (not for usage questions)"
            <openstack-dev at lists.openstack.org>,
Date:	04/09/2014 11:45 PM
Subject:	Re: [openstack-dev] [nova] Dynamic scheduling



@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?

@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]

[1]
http://www-01.ibm.com/common/ssi/cgi-bin/ssialias?infotype=AN&subtype=CA&htmlfid=897/ENUS213-590&appname=USN

[2]
https://blueprints.launchpad.net/nova/+spec/resource-optimization-service
[3] http://markmail.org/~jaylau/OpenStack-DRS

Thanks.


2014-04-09 23:21 GMT+08:00 Oleg Gelbukh <ogelbukh at mirantis.com>:
  Henrique,

  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.

  [1] https://github.com/openstack/gantt

  --
  Best regards,
  Oleg Gelbukh
  Mirantis Labs


  On Wed, Apr 9, 2014 at 6:41 PM, Henrique Truta <
  henriquecostatruta at gmail.com> wrote:
   Hello, everyone!

   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.



   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.



   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.



   Do you have any comments or suggestions?



   --
   Ítalo Henrique Costa Truta



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--
Thanks,

Jay_______________________________________________
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