Open Stack

2014-10-31 2:14 GMT+08:00 Steve Gordon <sgordon at redhat.com>:

> ----- Original Message -----
> > From: "Wuhongning" <wuhongning at huawei.com>
> > To: "OpenStack Development Mailing List (not for usage questions)" <
> openstack-dev at lists.openstack.org>
> >
> > +1, the hint should be persistent as other server instance metadata.
>
> I don't think there is much disagreement that it makes sense to do this,
> but more how/where to do so. You can refer to the comments in the review
> Jay linekd for more background:
>
>
> https://review.openstack.org/#/c/88983/17/specs/juno/persist-scheduler-hints.rst


Yea, thanks! will check that.


>
>
> > ________________________________
> > From: Alex Xu [soulxu at gmail.com]
> > Sent: Wednesday, October 29, 2014 9:11 PM
> > To: OpenStack Development Mailing List (not for usage questions)
> > Subject: Re: [openstack-dev] [Nova] Add scheduler-hints when
> > migration/rebuild/evacuate
> >
> >
> >
> > 2014-10-29 13:42 GMT+08:00 Chen CH Ji
> > <jichenjc at cn.ibm.com<mailto:jichenjc at cn.ibm.com>>:
> >
> > 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 ?
> >
> >
> > Yeah, that's problem. And I have talk with Jay Lau, look like there
> already
> > got agreement on persistent it.
> >
> >
> > 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<mailto:jichenjc at cn.ibm.com>
> > Phone: +86-10-82454158<tel:%2B86-10-82454158>
> > Address: 3/F Ring Building, ZhongGuanCun Software Park, Haidian District,
> > Beijing 100193, PRC
> >
> > [Inactive hide details for Alex Xu ---10/29/2014 01:34:13 PM---On
> 2014年10月29日
> > 12:37, Chen CH Ji wrote: >]Alex Xu ---10/29/2014 01:34:13 PM---On
> > 2014年10月29日 12:37, Chen CH Ji wrote: >
> >
> > From: Alex Xu <xuhj at linux.vnet.ibm.com<mailto:xuhj at linux.vnet.ibm.com>>
> > To:
> > openstack-dev at lists.openstack.org<mailto:
> 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<mailto:jichenjc at cn.ibm.com>
> > Phone: +86-10-82454158<tel:%2B86-10-82454158>
> > 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           pass]Alex
> 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><mailto:xuhj at linux.vnet.ibm.com>
> > To:
> > openstack-dev at lists.openstack.org<mailto:
> 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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