<div dir="ltr"><br><div class="gmail_extra"><br><div class="gmail_quote">2014-10-31 2:14 GMT+08:00 Steve Gordon <span dir="ltr"><<a href="mailto:sgordon@redhat.com" target="_blank">sgordon@redhat.com</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span>----- Original Message -----<br>
> From: "Wuhongning" <<a href="mailto:wuhongning@huawei.com" target="_blank">wuhongning@huawei.com</a>><br>
> To: "OpenStack Development Mailing List (not for usage questions)" <<a href="mailto:openstack-dev@lists.openstack.org" target="_blank">openstack-dev@lists.openstack.org</a>><br>
><br>
> +1, the hint should be persistent as other server instance metadata.<br>
<br>
</span>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:<br>
<br>
<a href="https://review.openstack.org/#/c/88983/17/specs/juno/persist-scheduler-hints.rst" target="_blank">https://review.openstack.org/#/c/88983/17/specs/juno/persist-scheduler-hints.rst</a></blockquote><div><br></div><div>Yea, thanks! will check that.</div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><br>
<span><br>
> ________________________________<br>
> From: Alex Xu [<a href="mailto:soulxu@gmail.com" target="_blank">soulxu@gmail.com</a>]<br>
> Sent: Wednesday, October 29, 2014 9:11 PM<br>
> To: OpenStack Development Mailing List (not for usage questions)<br>
> Subject: Re: [openstack-dev] [Nova] Add scheduler-hints when<br>
> migration/rebuild/evacuate<br>
><br>
><br>
><br>
> 2014-10-29 13:42 GMT+08:00 Chen CH Ji<br>
</span>> <<a href="mailto:jichenjc@cn.ibm.com" target="_blank">jichenjc@cn.ibm.com</a><mailto:<a href="mailto:jichenjc@cn.ibm.com" target="_blank">jichenjc@cn.ibm.com</a>>>:<br>
<span>><br>
> Yes, I remember that spec might talk about local storage (in local db?) and<br>
> it can be the root cause<br>
><br>
> And I think we need persistent storage otherwise the scheduler hints can't<br>
> survive in some conditions such as system reboot or upgrade ?<br>
><br>
><br>
> Yeah, that's problem. And I have talk with Jay Lau, look like there already<br>
> got agreement on persistent it.<br>
><br>
><br>
> Best Regards!<br>
><br>
> Kevin (Chen) Ji 纪 晨<br>
><br>
> Engineer, zVM Development, CSTL<br>
> Notes: Chen CH Ji/China/IBM@IBMCN   Internet:<br>
</span>> <a href="mailto:jichenjc@cn.ibm.com" target="_blank">jichenjc@cn.ibm.com</a><mailto:<a href="mailto:jichenjc@cn.ibm.com" target="_blank">jichenjc@cn.ibm.com</a>><br>
> Phone: <a href="tel:%2B86-10-82454158" value="+861082454158" target="_blank">+86-10-82454158</a><tel:%2B86-10-82454158><br>
<span>> Address: 3/F Ring Building, ZhongGuanCun Software Park, Haidian District,<br>
> Beijing 100193, PRC<br>
><br>
</span>> [Inactive hide details for Alex Xu ---10/29/2014 01:34:13 PM---On 2014年10月29日<br>
<span>> 12:37, Chen CH Ji wrote: >]Alex Xu ---10/29/2014 01:34:13 PM---On<br>
> 2014年10月29日 12:37, Chen CH Ji wrote: ><br>
><br>
</span>> From: Alex Xu <<a href="mailto:xuhj@linux.vnet.ibm.com" target="_blank">xuhj@linux.vnet.ibm.com</a><mailto:<a href="mailto:xuhj@linux.vnet.ibm.com" target="_blank">xuhj@linux.vnet.ibm.com</a>>><br>
> To:<br>
> <a href="mailto:openstack-dev@lists.openstack.org" target="_blank">openstack-dev@lists.openstack.org</a><mailto:<a href="mailto:openstack-dev@lists.openstack.org" target="_blank">openstack-dev@lists.openstack.org</a>><br>
<span>> Date: 10/29/2014 01:34 PM<br>
> Subject: Re: [openstack-dev] [Nova] Add scheduler-hints when<br>
> migration/rebuild/evacuate<br>
><br>
> ________________________________<br>
><br>
><br>
><br>
> On 2014年10月29日 12:37, Chen CH Ji wrote:<br>
><br>
> I think we already support to specify the host when doing evacuate and<br>
> migration ?<br>
><br>
> Yes, we support to specify the host, but schedule-hints is different thing.<br>
><br>
><br>
> if we need use hints that passed from creating instance, that means we need<br>
> to persistent schedule hints<br>
> I remember we used to have a spec for store it locally ...<br>
><br>
><br>
> I also remember we have one spec for persistent before, but I don't know why<br>
> it didn't continue.<br>
> And I think maybe we needn't persistent schedule-hints, just add pass new<br>
> schedule-hints when<br>
> migration the instance. Nova just need provide the mechanism.<br>
><br>
><br>
> Best Regards!<br>
><br>
> Kevin (Chen) Ji 纪 晨<br>
><br>
> Engineer, zVM Development, CSTL<br>
> Notes: Chen CH Ji/China/IBM@IBMCN   Internet:<br>
</span>> <a href="mailto:jichenjc@cn.ibm.com" target="_blank">jichenjc@cn.ibm.com</a><mailto:<a href="mailto:jichenjc@cn.ibm.com" target="_blank">jichenjc@cn.ibm.com</a>><br>
> Phone: <a href="tel:%2B86-10-82454158" value="+861082454158" target="_blank">+86-10-82454158</a><tel:%2B86-10-82454158><br>
<span>> Address: 3/F Ring Building, ZhongGuanCun Software Park, Haidian District,<br>
> Beijing 100193, PRC<br>
><br>
</span>> [Inactive hide details for Alex Xu ---10/29/2014 12:19:35           PM---Hi,<br>
<span>> Currently migration/rebuild/evacuate didn't support           pass]Alex Xu<br>
> ---10/29/2014 12:19:35 PM---Hi, Currently migration/rebuild/evacuate didn't<br>
> support pass<br>
><br>
</span>> From: Alex Xu <<a href="mailto:xuhj@linux.vnet.ibm.com" target="_blank">xuhj@linux.vnet.ibm.com</a>><mailto:<a href="mailto:xuhj@linux.vnet.ibm.com" target="_blank">xuhj@linux.vnet.ibm.com</a>><br>
> To:<br>
> <a href="mailto:openstack-dev@lists.openstack.org" target="_blank">openstack-dev@lists.openstack.org</a><mailto:<a href="mailto:openstack-dev@lists.openstack.org" target="_blank">openstack-dev@lists.openstack.org</a>><br>
<span>> Date: 10/29/2014 12:19 PM<br>
> Subject: [openstack-dev] [Nova] Add scheduler-hints when<br>
> migration/rebuild/evacuate<br>
><br>
> ________________________________<br>
><br>
><br>
><br>
> Hi,<br>
><br>
> Currently migration/rebuild/evacuate didn't support pass<br>
> scheduler-hints, that means any migration<br>
> can't use schedule-hints that passed when creating instance.<br>
><br>
> Can we add scheduler-hints support when migration/rebuild/evacuate? That<br>
> also can enable user<br>
> move in/out instance to/from an server group.<br>
><br>
> Thanks<br>
> Alex<br>
><br>
><br>
> _______________________________________________<br>
> OpenStack-dev mailing list<br>
</span>> <a href="mailto:OpenStack-dev@lists.openstack.org" target="_blank">OpenStack-dev@lists.openstack.org</a><mailto:<a href="mailto:OpenStack-dev@lists.openstack.org" target="_blank">OpenStack-dev@lists.openstack.org</a>><br>
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><br>
><br>
><br>
><br>
> _______________________________________________<br>
> OpenStack-dev mailing list<br>
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><br>
> _______________________________________________<br>
> OpenStack-dev mailing list<br>
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><br>
><br>
> _______________________________________________<br>
> OpenStack-dev mailing list<br>
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><br>
><br>
><br>
> _______________________________________________<br>
> OpenStack-dev mailing list<br>
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</div></div></blockquote></div><br></div></div>