<html>
<head>
<meta content="text/html; charset=UTF-8" http-equiv="Content-Type">
</head>
<body bgcolor="#FFFFFF" text="#000000">
<br>
<div class="moz-cite-prefix">On 2014年09月22日 15:31, ivanzhu wrote:<br>
</div>
<blockquote cite="mid:001b01cfd637$34959f80$9dc0de80$@qq.com"
type="cite">
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<meta name="Generator" content="Microsoft Word 15 (filtered
medium)">
<style><!--
/* Font Definitions */
@font-face
{font-family:Courier;
panose-1:2 7 4 9 2 2 5 2 4 4;}
@font-face
{font-family:"MS Mincho";
panose-1:2 2 6 9 4 2 5 8 3 4;}
@font-face
{font-family:宋体;
panose-1:2 1 6 0 3 1 1 1 1 1;}
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:微软雅黑;
panose-1:2 11 5 3 2 2 4 2 2 4;}
@font-face
{font-family:"\@宋体";
panose-1:2 1 6 0 3 1 1 1 1 1;}
@font-face
{font-family:"\@微软雅黑";
panose-1:2 11 5 3 2 2 4 2 2 4;}
@font-face
{font-family:"\@MS Mincho";
panose-1:2 2 6 9 4 2 5 8 3 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:宋体;
color:black;}
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;}
pre
{mso-style-priority:99;
mso-style-link:"HTML 预设格式 Char";
margin:0cm;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:宋体;}
p.MsoListParagraph, li.MsoListParagraph, div.MsoListParagraph
{mso-style-priority:34;
margin:0cm;
margin-bottom:.0001pt;
text-indent:21.0pt;
font-size:12.0pt;
font-family:宋体;
color:black;}
span.EmailStyle17
{mso-style-type:personal-reply;
font-family:"Calibri","sans-serif";
color:#1F497D;}
span.HTMLChar
{mso-style-name:"HTML 预设格式 Char";
mso-style-priority:99;
mso-style-link:"HTML 预设格式";
font-family:宋体;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:612.0pt 792.0pt;
margin:72.0pt 90.0pt 72.0pt 90.0pt;}
div.WordSection1
{page:WordSection1;}
/* List Definitions */
@list l0
{mso-list-id:634333817;
mso-list-type:hybrid;
mso-list-template-ids:649484808 -1743324994 67698713 67698715 67698703 67698713 67698715 67698703 67698713 67698715;}
@list l0:level1
{mso-level-tab-stop:none;
mso-level-number-position:left;
margin-left:51.75pt;
text-indent:-18.0pt;}
@list l0:level2
{mso-level-number-format:alpha-lower;
mso-level-text:"%2\)";
mso-level-tab-stop:none;
mso-level-number-position:left;
margin-left:75.75pt;
text-indent:-21.0pt;}
@list l0:level3
{mso-level-number-format:roman-lower;
mso-level-tab-stop:none;
mso-level-number-position:right;
margin-left:96.75pt;
text-indent:-21.0pt;}
@list l0:level4
{mso-level-tab-stop:none;
mso-level-number-position:left;
margin-left:117.75pt;
text-indent:-21.0pt;}
@list l0:level5
{mso-level-number-format:alpha-lower;
mso-level-text:"%5\)";
mso-level-tab-stop:none;
mso-level-number-position:left;
margin-left:138.75pt;
text-indent:-21.0pt;}
@list l0:level6
{mso-level-number-format:roman-lower;
mso-level-tab-stop:none;
mso-level-number-position:right;
margin-left:159.75pt;
text-indent:-21.0pt;}
@list l0:level7
{mso-level-tab-stop:none;
mso-level-number-position:left;
margin-left:180.75pt;
text-indent:-21.0pt;}
@list l0:level8
{mso-level-number-format:alpha-lower;
mso-level-text:"%8\)";
mso-level-tab-stop:none;
mso-level-number-position:left;
margin-left:201.75pt;
text-indent:-21.0pt;}
@list l0:level9
{mso-level-number-format:roman-lower;
mso-level-tab-stop:none;
mso-level-number-position:right;
margin-left:222.75pt;
text-indent:-21.0pt;}
@list l1
{mso-list-id:1271158166;
mso-list-type:hybrid;
mso-list-template-ids:-1385004478 -293037326 67698713 67698715 67698703 67698713 67698715 67698703 67698713 67698715;}
@list l1:level1
{mso-level-tab-stop:none;
mso-level-number-position:left;
margin-left:49.5pt;
text-indent:-18.0pt;}
@list l1:level2
{mso-level-number-format:alpha-lower;
mso-level-text:"%2\)";
mso-level-tab-stop:none;
mso-level-number-position:left;
margin-left:73.5pt;
text-indent:-21.0pt;}
@list l1:level3
{mso-level-number-format:roman-lower;
mso-level-tab-stop:none;
mso-level-number-position:right;
margin-left:94.5pt;
text-indent:-21.0pt;}
@list l1:level4
{mso-level-tab-stop:none;
mso-level-number-position:left;
margin-left:115.5pt;
text-indent:-21.0pt;}
@list l1:level5
{mso-level-number-format:alpha-lower;
mso-level-text:"%5\)";
mso-level-tab-stop:none;
mso-level-number-position:left;
margin-left:136.5pt;
text-indent:-21.0pt;}
@list l1:level6
{mso-level-number-format:roman-lower;
mso-level-tab-stop:none;
mso-level-number-position:right;
margin-left:157.5pt;
text-indent:-21.0pt;}
@list l1:level7
{mso-level-tab-stop:none;
mso-level-number-position:left;
margin-left:178.5pt;
text-indent:-21.0pt;}
@list l1:level8
{mso-level-number-format:alpha-lower;
mso-level-text:"%8\)";
mso-level-tab-stop:none;
mso-level-number-position:left;
margin-left:199.5pt;
text-indent:-21.0pt;}
@list l1:level9
{mso-level-number-format:roman-lower;
mso-level-tab-stop:none;
mso-level-number-position:right;
margin-left:220.5pt;
text-indent:-21.0pt;}
ol
{margin-bottom:0cm;}
ul
{margin-bottom:0cm;}
--></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]-->
<div class="WordSection1">
<p class="MsoNormal"><span
style="font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US">Hi, Ruoyu, thanks for your reply. <o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US">Yes, I have found there are some fix on stable
0.8, but we still use stable 0.8.2. Update will be risky, so
we need some time.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US">I still have some inline questions, can you
help me again?<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US"><o:p> </o:p></span></p>
<div>
<div style="border:none;border-top:solid #E1E1E1
1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span
style="font-size:11.0pt;font-family:"微软雅黑","sans-serif&
quot;;color:windowtext">发件人<span lang="EN-US">:</span></span></b><span
style="font-size:11.0pt;font-family:"微软雅黑",&
quot;sans-serif";color:windowtext" lang="EN-US">
Ruoyu [<a class="moz-txt-link-freetext" href="mailto:liangry@ucweb.com">mailto:liangry@ucweb.com</a>] <br>
</span><b><span
style="font-size:11.0pt;font-family:"微软雅黑","sans-serif&
quot;;color:windowtext">发送时间<span lang="EN-US">:</span></span></b><span
style="font-size:11.0pt;font-family:"微软雅黑",&
quot;sans-serif";color:windowtext" lang="EN-US">
2014</span><span
style="font-size:11.0pt;font-family:"微软雅黑","sans-serif&
quot;;color:windowtext">年<span lang="EN-US">9</span>月<span
lang="EN-US">22</span>日<span lang="EN-US"> 14:01<br>
</span><b>收件人<span lang="EN-US">:</span></b><span
lang="EN-US"> </span>朱波<span lang="EN-US">; sheepdog<br>
</span><b>主题<span lang="EN-US">:</span></b><span
lang="EN-US"> Re: [sheepdog] Could cluster-wide
snapshot be restored into different cluster with
different number nodes?<o:p></o:p></span></span></p>
</div>
</div>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<div>
<p class="MsoNormal"><span lang="EN-US">On 2014</span>年<span
lang="EN-US">09</span>月<span lang="EN-US">22</span>日<span
lang="EN-US"> 13:36, </span>朱波<span lang="EN-US"> wrote:<o:p></o:p></span></p>
</div>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<div>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US">Hi, folks<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US"> I'm a new
sheepdog user, I have run sheepdog on 15 sheepdog nodes.
And do cluster-wide snapshot for this cluster.<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US">Recently, I restored
the snapshot into a new cluster with 7 nodes. But it
failed. the command "dog vdi list" would show me some
object can't be found. And currently we don't have more
nodes and time to verify whether it would be successful
when restore it into a new cluster with 15 sheepdog
nodes. <o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US">So I have two
questions want to check with you guru:<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US">1. Could
cluster-wide snapshot be restored into different
cluster with different number node?<o:p></o:p></span></p>
</div>
</blockquote>
<p class="MsoNormal"><span lang="EN-US">Yes. Cluster-wide
snapshot is de-duplicated. It can be restored into different
cluster with different number of nodes and with different
redundancy level.<br>
<br>
<o:p></o:p></span></p>
<pre style="line-height:14.7pt;background:white"><span style="font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497D" lang="EN-US">Actually, I find there is a </span><span style="font-size:10.5pt;font-family:Courier;color:black" lang="EN-US">constraint for cluster-wide snapshot in the link:</span><span lang="EN-US"> </span><span style="font-size:10.5pt;font-family:Courier;color:black" lang="EN-US"><a moz-do-not-send="true" href="https://www.mail-archive.com/sheepdog@lists.wpkg.org/msg06209.html">https://www.mail-archive.com/sheepdog@lists.wpkg.org/msg06209.html</a> (at the bottom of page).<o:p></o:p></span></pre>
<pre style="line-height:14.7pt;background:white"><span style="font-size:10.5pt;font-family:Courier;color:black" lang="EN-US">I’m not sure the cluster topology changes means the cluster node number, if you can help explain this, it will be greate.<o:p></o:p></span></pre>
<pre style="line-height:14.7pt;background:white"><span style="font-size:10.5pt;font-family:Courier;color:black" lang="EN-US"><o:p> </o:p></span></pre>
</div>
</blockquote>
It is written in 2012. Maybe it is not the same as today.<br>
Yuan, what's your opinion? It seems it's you answered the mail and
mentioned cluster topology.<br>
<blockquote cite="mid:001b01cfd637$34959f80$9dc0de80$@qq.com"
type="cite">
<div class="WordSection1">
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<div>
<p class="MsoNormal"><span style="font-family:"MS
Mincho"" lang="EN-US"></span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US">2. If one
cluster-wide snapshot is failed(after restored, "dog
vdi list" will show some object can't be found), would
another new cluster-wide snapshot based on the failed
one be successful? in other words, the first tag of
cluster-wide snapshot is failed, can the second tag be
successful? Are they independent?<o:p></o:p></span></p>
</div>
</blockquote>
<p class="MsoNormal"><span lang="EN-US">What is your sheep's
version? And, how you produce the failure (some objects not
found)? Maybe it is relevant to a bug which is fixed
recently.<br>
<a moz-do-not-send="true"
href="https://github.com/sheepdog/sheepdog/commit/7e236cee8951aa749b84e9b66fbb86385a92b450">https://github.com/sheepdog/sheepdog/commit/7e236cee8951aa749b84e9b66fbb86385a92b450</a><br>
<br>
</span><span style="color:#1F497D" lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US"> the operation step:</span><span
style="color:#1F497D" lang="EN-US"><o:p></o:p></span></p>
<p class="MsoListParagraph"
style="margin-left:49.5pt;text-indent:-18.0pt;mso-list:l1
level1 lfo2"><!--[if !supportLists]--><span
style="font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US"><span style="mso-list:Ignore">1.<span
style="font:7.0pt "Times New Roman""> </span></span></span><!--[endif]--><span
style="font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US">dog cluster snapshot save snapshot_1
BACKUP_DIR -a 192.168.1.102 -p 7000 (snapshot the cluster
A)<o:p></o:p></span></p>
<p class="MsoListParagraph"
style="margin-left:49.5pt;text-indent:-18.0pt;mso-list:l1
level1 lfo2"><!--[if !supportLists]--><span
style="font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US"><span style="mso-list:Ignore">2.<span
style="font:7.0pt "Times New Roman""> </span></span></span><!--[endif]--><span
style="font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US">dog cluster snapshot load snapshot_1
BACKUP_DIR –a 177.xx.xx.xx -p 7000 (restore into the
cluster B)<o:p></o:p></span></p>
<p class="MsoListParagraph"
style="margin-left:49.5pt;text-indent:-18.0pt;mso-list:l1
level1 lfo2"><!--[if !supportLists]--><span
style="font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US"><span style="mso-list:Ignore">3.<span
style="font:7.0pt "Times New Roman""> </span></span></span><!--[endif]--><span
style="font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US">on the cluster B. dog vdi list <o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:52.5pt"><span
style="font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US">it will display xxxx object can’t be found.
(I’m not sure why this happen).<o:p></o:p></span></p>
<p class="MsoListParagraph"
style="margin-left:49.5pt;text-indent:-18.0pt;mso-list:l1
level1 lfo2"><!--[if !supportLists]--><span
style="font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US"><span style="mso-list:Ignore">4.<span
style="font:7.0pt "Times New Roman""> </span></span></span><!--[endif]--><span
style="font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US">dog cluster snapshot save snapshot_2
BACKUP_DIR -a 192.168.1.102 -p 7000 (snapshot the cluster
A)<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal"><b><span
style="font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US">Can the snapshot_2 be successful? Or It must
be failed like the snapshot_1?<o:p></o:p></span></b></p>
<p class="MsoNormal"><span
style="font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US"><o:p> </o:p></span></p>
</div>
</blockquote>
I tried your operation steps with sheepdog v0.8.2, but no error
message found in my environment while executing dog vdi list.<br>
Could yo please check your sheep's log? Maybe it is helpful for
analysis.<br>
<blockquote cite="mid:001b01cfd637$34959f80$9dc0de80$@qq.com"
type="cite">
<div class="WordSection1">
<p class="MsoListParagraph"
style="margin-left:49.5pt;text-indent:0cm"><span
style="font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US"><o:p> </o:p></span></p>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<div>
<p class="MsoNormal"><span lang="EN-US">Anybody can help me?
Any response will be appreciated.</span><span
style="font-family:"MS Mincho"" lang="EN-US"></span><span
lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US">Thanks & Regards<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US">Ivan<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
</div>
<p class="MsoNormal"><span lang="EN-US"><br>
<br>
<o:p></o:p></span></p>
</blockquote>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
</div>
</blockquote>
<br>
</body>
</html>