<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=gb2312">
<meta name="Generator" content="Microsoft Word 15 (filtered medium)">
<style><!--
/* Font Definitions */
@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:"\@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:11.0pt;
font-family:"Calibri","sans-serif";
mso-fareast-language:ZH-CN;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:#0563C1;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:#954F72;
text-decoration:underline;}
p
{mso-style-priority:99;
mso-margin-top-alt:auto;
margin-right:0in;
mso-margin-bottom-alt:auto;
margin-left:0in;
font-size:12.0pt;
font-family:"Times New Roman","serif";
mso-fareast-language:ZH-CN;}
span.EmailStyle18
{mso-style-type:personal;
font-family:"Calibri","sans-serif";
color:windowtext;}
span.EmailStyle19
{mso-style-type:personal;
font-family:"Calibri","sans-serif";
color:#1F497D;}
span.EmailStyle20
{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 1.0in 1.0in 1.0in;}
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="#0563C1" vlink="#954F72">
<div class="WordSection1">
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Hi all,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">The problem what I noticed is, in update stats we send thick and thin volume support as true. This issue can be reproduced.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">So the over provision and thick and thin parameters are reason, scheduler is not blocking for thick volume based on the capacity if it is thick, it Is passing to the driver which forces driver to
handle a particular use case!!<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">I believe this has to handle at the above layer, however it will not know what kind of volume is created using volume types, I think this also has to be considered in scheduler!<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Any one has a better approach? For this or is it better to write own filters to avoid writing in driver?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Thanks<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Dilip<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<div>
<div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b>From:</b> Wanghao (S) [mailto:wanghao749@huawei.com] <br>
<b>Sent:</b> Thursday, February 04, 2016 11:48 AM<br>
<b>To:</b> Dilip Sunkum Manjunath; 'openstack@lists.openstack.org'<br>
<b>Cc:</b> 'itzdilip@gmail.com'<br>
<b>Subject:</b> <span lang="ZH-CN" style="font-family:SimSun">答复</span>: [CINDER] how to get updated pool info when multi users create volumes on pool configured?<o:p></o:p></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:10.5pt;color:#1F497D">Hi, Dilip<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;color:#1F497D">Generally, Cinder scheduler will consume the free_capacity_gb after chose the host for a volume creation, could see the consume_from_volume function in host_manager.py.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;color:#1F497D">That keep the pool capacity gb updated correctly when multi users are creating volume.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;color:#1F497D">Thanks<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;color:#1F497D">Wang Hao<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;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 lang="ZH-CN" style="font-size:10.0pt;font-family:SimSun">发件人</span></b><b><span style="font-size:10.0pt;font-family:SimSun">:</span></b><span style="font-size:10.0pt;font-family:SimSun"> Dilip Sunkum Manjunath [<a href="mailto:Dilip.SunkumManjunath@toshiba-tsip.com">mailto:Dilip.SunkumManjunath@toshiba-tsip.com</a>]
<br>
<b><span lang="ZH-CN">发送时间</span>:</b> 2016<span lang="ZH-CN">年</span>2<span lang="ZH-CN">月</span>3<span lang="ZH-CN">日</span> 17:50<br>
<b><span lang="ZH-CN">收件人</span>:</b> 'openstack@lists.openstack.org'<br>
<b><span lang="ZH-CN">抄送</span>:</b> 'itzdilip@gmail.com'<br>
<b><span lang="ZH-CN">主题</span>:</b> [Openstack] [CINDER] how to get updated pool info when multi users create volumes on pool configured?<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Hi All,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">the get_volume_stats method runs 60 sec once, <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">am using the multi pools configured in it, while creating volumes,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">if more than one user is creating how will the pool information be reliable which is from pooling job? As it runs once in 60 sec!<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Am getting the old values and request is failing , has any one faced it before?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks<o:p></o:p></p>
<p class="MsoNormal">Dilip<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p><span style="font-size:7.0pt">The information contained in this e-mail message and in any attachments/annexure/appendices is confidential to the
<br>
recipient and may contain privileged information. If you are not the intended recipient, please notify the<br>
sender and delete the message along with any attachments/annexure/appendices. You should not disclose,<br>
copy or otherwise use the information contained in the message or any annexure. Any views expressed in this e-mail
<br>
are those of the individual sender except where the sender specifically states them to be the views of
<br>
Toshiba Software India Pvt. Ltd. (TSIP),Bangalore.<br>
Although this transmission and any attachments are believed to be free of any virus or other defect that might affect any computer system into which it is received and opened, it is the responsibility of the recipient to ensure that it is virus free and no
responsibility is accepted by Toshiba Software India Pvt. Ltd, for any loss or damage arising in any way from its use.</span><o:p></o:p></p>
</div>
<P><font style="FONT-FAMILY: ; FONT-SIZE: 11px"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 9px">The information contained in this e-mail message and in any attachments/annexure/appendices is confidential to the <br>recipient and may contain privileged information. If you are not the intended recipient, please notify the<br>sender and delete the message along with any attachments/annexure/appendices. You should not disclose,<br>copy or otherwise use the information contained in the message or any annexure. Any views expressed in this e-mail <br>are those of the individual sender except where the sender specifically states them to be the views of <br>Toshiba Software India Pvt. Ltd. (TSIP),Bangalore.<br></font></font><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 9px">Although this transmission and any attachments are believed to be free of any virus or other defect that might affect any computer system into which it is received and opened, it is the responsibility of the recipient to ensure that it is virus free and no responsibility is accepted by Toshiba Software India Pvt. Ltd, for any loss or damage arising in any way from its use.</font></P>
<P><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 9px"></font></P></body>
</html>