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<div style="direction: ltr;font-family: Tahoma;color: #000000;font-size: 10pt;">+1, the hint should be persistent as other server instance metadata.
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<div id="divRpF642237" style="direction: ltr;"><font face="Tahoma" size="2" color="#000000"><b>From:</b> Alex Xu [soulxu@gmail.com]<br>
<b>Sent:</b> Wednesday, October 29, 2014 9:11 PM<br>
<b>To:</b> OpenStack Development Mailing List (not for usage questions)<br>
<b>Subject:</b> Re: [openstack-dev] [Nova] Add scheduler-hints when migration/rebuild/evacuate<br>
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<div class="gmail_quote">2014-10-29 13:42 GMT+08:00 Chen CH Ji <span dir="ltr"><<a href="mailto:jichenjc@cn.ibm.com" target="_blank">jichenjc@cn.ibm.com</a>></span>:<br>
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<p><font face="sans-serif">Yes, I remember that spec might talk about local storage (in local db?) and it can be the root cause
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<font face="sans-serif">And I think we need persistent storage otherwise the scheduler hints can't survive in some conditions such as system reboot or upgrade ?</font><span class=""><br>
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<div>Yeah, that's problem. And I have talk with Jay Lau, look like there already got agreement on persistent it.</div>
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<p><span class=""><font face="sans-serif">Best Regards! <br>
<br>
Kevin (Chen) Ji 纪 晨<br>
<br>
Engineer, zVM Development, CSTL<br>
Notes: Chen CH Ji/China/IBM@IBMCN Internet: <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><br>
Address: 3/F Ring Building, ZhongGuanCun Software Park, Haidian District, Beijing 100193, PRC
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</span><span class=""><img src="cid:1__=C7BBF713DF8C89D88f9e8a93df938@cn.ibm.com" alt="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: >" height="16" width="16" border="0"><font color="#424282" face="sans-serif">Alex
Xu ---10/29/2014 01:34:13 PM---On 2014年10月29日 12:37, Chen CH Ji wrote: ></font><br>
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<font size="1" color="#5F5F5F" face="sans-serif">From: </font><font size="1" face="sans-serif">Alex Xu <<a href="mailto:xuhj@linux.vnet.ibm.com" target="_blank">xuhj@linux.vnet.ibm.com</a>></font><br>
<font size="1" color="#5F5F5F" face="sans-serif">To: </font><font size="1" face="sans-serif"><a href="mailto:openstack-dev@lists.openstack.org" target="_blank">openstack-dev@lists.openstack.org</a></font><br>
</span><font size="1" color="#5F5F5F" face="sans-serif">Date: </font><font size="1" face="sans-serif">10/29/2014 01:34 PM</font><br>
<font size="1" color="#5F5F5F" face="sans-serif">Subject: </font><font size="1" face="sans-serif">Re: [openstack-dev] [Nova] Add scheduler-hints when migration/rebuild/evacuate</font></p>
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<font size="3" face="serif">On 2014年10月29日 12:37, Chen CH Ji wrote:</font>
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<font face="sans-serif">I think we already support to specify the host when doing evacuate and migration ?</font></ul>
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<font size="3" face="serif">Yes, we support to specify the host, but schedule-hints is different thing.</font>
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<font face="sans-serif"><br>
if we need use hints that passed from creating instance, that means we need to persistent schedule hints<br>
I remember we used to have a spec for store it locally ...</font></ul>
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I also remember we have one spec for persistent before, but I don't know why it didn't continue.<br>
And I think maybe we needn't persistent schedule-hints, just add pass new schedule-hints when<br>
migration the instance. Nova just need provide the mechanism.<br>
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Best Regards! <br>
<br>
Kevin (Chen) Ji 纪 晨<br>
<br>
Engineer, zVM Development, CSTL<br>
Notes: Chen CH Ji/China/IBM@IBMCN Internet: </font><a href="mailto:jichenjc@cn.ibm.com" target="_blank"><font color="#0000FF" face="sans-serif"><u>jichenjc@cn.ibm.com</u></font></a><font face="sans-serif"><br>
Phone: <a href="tel:%2B86-10-82454158" value="+861082454158" target="_blank">+86-10-82454158</a><br>
Address: 3/F Ring Building, ZhongGuanCun Software Park, Haidian District, Beijing 100193, PRC
</font><font size="3" face="serif"><br>
<br>
</font><img src="cid:1__=C7BBF713DF8C89D88f9e8a93df938@cn.ibm.com" alt="Inactive hide details for Alex Xu ---10/29/2014 12:19:35
PM---Hi, Currently migration/rebuild/evacuate didn't support
pass" height="16" width="16"><font color="#424282" face="sans-serif">Alex
Xu ---10/29/2014 12:19:35 PM---Hi, Currently migration/rebuild/evacuate didn't support pass</font><font size="3" face="serif"><br>
</font><font size="1" color="#5F5F5F" face="sans-serif"><br>
From: </font><font size="1" face="sans-serif">Alex Xu </font><a href="mailto:xuhj@linux.vnet.ibm.com" target="_blank"><font size="1" color="#0000FF" face="sans-serif"><u><xuhj@linux.vnet.ibm.com></u></font></a><font size="1" color="#5F5F5F" face="sans-serif"><br>
To: </font><a href="mailto:openstack-dev@lists.openstack.org" target="_blank"><font size="1" color="#0000FF" face="sans-serif"><u>openstack-dev@lists.openstack.org</u></font></a><font size="1" color="#5F5F5F" face="sans-serif"><br>
Date: </font><font size="1" face="sans-serif">10/29/2014 12:19 PM</font><font size="1" color="#5F5F5F" face="sans-serif"><br>
Subject: </font><font size="1" face="sans-serif">[openstack-dev] [Nova] Add scheduler-hints when migration/rebuild/evacuate</font>
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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>
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