Open Stack

Yes, I remember that spec might talk about local storage (in local db?) and
it can be the root cause

And I think we need persistent storage otherwise the scheduler hints can't
survive in some conditions such as system reboot or upgrade ?

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:	Alex Xu <xuhj at linux.vnet.ibm.com>
To:	openstack-dev at lists.openstack.org
Date:	10/29/2014 01:34 PM
Subject:	Re: [openstack-dev] [Nova] Add scheduler-hints	when
            migration/rebuild/evacuate



On 2014年10月29日 12:37, Chen CH Ji wrote:


      I think we already support to specify the host when doing evacuate
      and migration ?


Yes, we support to specify the host, but schedule-hints is different thing.



      if we need use hints that passed from creating instance, that means
      we need to persistent schedule hints
      I remember we used to have a spec for store it locally ...



I also remember we have one spec for persistent before, but I don't know
why it didn't continue.
And I think maybe we needn't persistent schedule-hints, just add pass new
schedule-hints when
migration the instance. Nova just need provide the mechanism.




      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

      Inactive hide details for Alex Xu ---10/29/2014 12:19:35
      PM---Hi, Currently migration/rebuild/evacuate didn't support
      passAlex Xu ---10/29/2014 12:19:35 PM---Hi, Currently
      migration/rebuild/evacuate didn't support pass

      From: Alex Xu <xuhj at linux.vnet.ibm.com>
      To: openstack-dev at lists.openstack.org
      Date: 10/29/2014 12:19 PM
      Subject: [openstack-dev] [Nova] Add scheduler-hints when
      migration/rebuild/evacuate





      Hi,

      Currently migration/rebuild/evacuate didn't support pass
      scheduler-hints, that means any migration
      can't use schedule-hints that passed when creating instance.

      Can we add scheduler-hints support when migration/rebuild/evacuate?
      That
      also can enable user
      move in/out instance to/from an server group.

      Thanks
      Alex


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