<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<meta name="Generator" content="Microsoft Word 14 (filtered medium)">
<base href="x-msg://26/"><!--[if !mso]><style>v\:* {behavior:url(#default#VML);}
o\:* {behavior:url(#default#VML);}
w\:* {behavior:url(#default#VML);}
.shape {behavior:url(#default#VML);}
</style><![endif]--><style><!--
/* Font Definitions */
@font-face
{font-family:Helvetica;
panose-1:2 11 6 4 2 2 2 2 2 4;}
@font-face
{font-family:SimSun;
panose-1:2 1 6 0 3 1 1 1 1 1;}
@font-face
{font-family:SimSun;
panose-1:2 1 6 0 3 1 1 1 1 1;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
@font-face
{font-family:"Helvetica Neue";
panose-1:0 0 0 0 0 0 0 0 0 0;}
@font-face
{font-family:"Segoe Script";
panose-1:2 11 5 4 2 0 0 0 0 3;}
@font-face
{font-family:SimSun;
panose-1:2 1 6 0 3 1 1 1 1 1;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:"Times New Roman","serif";}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
span.apple-style-span
{mso-style-name:apple-style-span;}
span.EmailStyle18
{mso-style-type:personal-reply;
font-family:"Calibri","sans-serif";
color:#1F497D;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.25in 1.0in 1.25in;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
</head>
<body lang="EN-US" link="blue" vlink="purple">
<div class="WordSection1">
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Yep, it seems that our purposes are maintenance/test both.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">BTW, if one admin/oprator want to maintenance a host, he/she may want to relocate all instance to another health node.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">If there is a command just like ‘nova live-migrate --all’ and he/she need not care about selecting which node as destination, all works will be done by nova-scheduler.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<div>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Best wishes,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Segoe Script","sans-serif";color:#1F497D">Yale Yuan<o:p></o:p></span></p>
</div>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<div>
<div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Razique Mahroua [mailto:razique.mahroua@gmail.com]
<br>
<b>Sent:</b> Monday, January 07, 2013 4:56 PM<br>
<b>To:</b> Yuan, Ye A<br>
<b>Cc:</b> openstack-operators@lists.openstack.org<br>
<b>Subject:</b> Re: [Openstack-operators] A concept feature named 'scheduling live migration'<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Hi Yuan ,<o:p></o:p></p>
<div>
<p class="MsoNormal">would it be similar somehow to the feature which allows you to disable a service via keystone on a server?<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">see : <a href="https://bugs.launchpad.net/keystone/+bug/1048662">https://bugs.launchpad.net/keystone/+bug/1048662</a><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<div>
<p class="MsoNormal"><span class="apple-style-span"><b><span style="font-family:"Helvetica","sans-serif";color:#13708A">Razique Mahroua - Nuage & Co</span></b></span><span class="apple-style-span"><span style="font-size:13.5pt;font-family:"Helvetica","sans-serif";color:black"><o:p></o:p></span></span></p>
<div>
<p class="MsoNormal"><span style="font-size:13.5pt;font-family:"Helvetica","sans-serif";color:#13708A"><a href="mailto:razique.mahroua@gmail.com">razique.mahroua@gmail.com</a></span><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><span style="font-size:13.5pt;font-family:"Helvetica","sans-serif";color:#13708A">Tel : +33 9 72 37 94 15</span><span style="font-size:13.5pt;font-family:"Helvetica","sans-serif";color:black"><o:p></o:p></span></p>
</div>
<p class="MsoNormal"><span style="font-size:13.5pt;font-family:"Helvetica","sans-serif";color:black"><br>
<img border="0" width="125" height="125" id="_x0030_41c78ba-1d6c-4849-81fc-5fcd46181eba" src="cid:image001.jpg@01CDED8B.2F0EAB60"></span><o:p></o:p></p>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<div>
<p class="MsoNormal">Le 7 janv. 2013 à 09:01, "Yuan, Ye A" <<a href="mailto:ye.a.yuan@intel.com">ye.a.yuan@intel.com</a>> a écrit :<o:p></o:p></p>
</div>
<p class="MsoNormal"><br>
<br>
<o:p></o:p></p>
<div>
<div>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"">Hi all,<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"">There is a feature in my mind just as below:<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"">In VMware, admin can use maintenance mode to set a host to entering maintenance mode, in which the host does not allow you to deploy or power on a virtual machine until all
running virtual machines are powered down or migrated to different hosts.<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"">So, if there is a feature that enable scheduler while live migration rather than use destination hostname argument in shell command ‘nova live-migration <instance-uuid> <hostname>’,
OpenStack can implement maintenance mode too. In other words, operator can migrate instance without specific destination hostname.<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"">If anyone has some suggestions, please feel free to let me know.<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif""> <o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"">Best wishes,<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Segoe Script","sans-serif"">Yale Yuan</span><span style="font-size:11.0pt;font-family:"Calibri","sans-serif""><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif""> <o:p></o:p></span></p>
</div>
<p class="MsoNormal"><span style="font-size:13.5pt;font-family:"Helvetica Neue","serif"">_______________________________________________<br>
OpenStack-operators mailing list<br>
<a href="mailto:OpenStack-operators@lists.openstack.org"><span style="color:purple">OpenStack-operators@lists.openstack.org</span></a><br>
<a href="http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators"><span style="color:purple">http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators</span></a><o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
</div>
</div>
</body>
</html>