<html><body><div style="font-family: trebuchet ms,sans-serif; font-size: 12pt; color: #000000"><div>Ok, this almost seems too easy ... :)<br></div><div><br></div><div>What I was trying to avoid was more tweaking of ON files when installing VDC.</div><div><br></div><div>The issue I see is that each time someone upgraded ON, they will potentially have a chain of</div><div>small patches to apply ... if I supply a few small patches based on "if <vdc installed> - do something extra"</div><div>would you include these in the stock scripts??</div><div><br></div><div>Gareth.</div><div><br></div><div><span name="x"></span><div><div><span size="2" style="font-size: small;" data-mce-style="font-size: small;">--</span></div><div><table class="mceItemTable"><tbody><tr><td><img src="http://linuxforums.org.uk/index.php?action=dlattach;attach=262;type=avatar" data-mce-src="http://linuxforums.org.uk/index.php?action=dlattach;attach=262;type=avatar"></td><td><div><b style="font-family: verdana, Helvetica, sans-serif; font-size: 11px; line-height: 14px;" data-mce-style="font-family: verdana, Helvetica, sans-serif; font-size: 11px; line-height: 14px;">Gareth Bult</b><br><span color="#666666" style="color: #666666;" data-mce-style="color: #666666;"><span face="verdana, Helvetica, sans-serif" style="font-family: verdana, Helvetica, sans-serif;" data-mce-style="font-family: verdana, Helvetica, sans-serif;"><span style="font-size: 11px; line-height: 14px;" data-mce-style="font-size: 11px; line-height: 14px;">“The odds of hitting your target go up dramatically when you aim at it.”</span></span></span><span color="#666666" style="color: #666666;" data-mce-style="color: #666666;"><br></span><span color="#666666" style="color: #666666;" data-mce-style="color: #666666;"><span style="color: #666666; font-family: verdana, Helvetica, sans-serif; font-size: 11px; line-height: 14px;" data-mce-style="color: #666666; font-family: verdana, Helvetica, sans-serif; font-size: 11px; line-height: 14px;">See the status of my current project at <a data-mce-href="http://vdc-store.com" href="http://vdc-store.com" target="_blank">http://vdc-store.com</a></span></span></div><div><span color="#666666" style="color: #666666;" data-mce-style="color: #666666;"><span face="verdana, Helvetica, sans-serif" style="font-family: verdana, Helvetica, sans-serif;" data-mce-style="font-family: verdana, Helvetica, sans-serif;"><span style="font-size: 11px; line-height: 14px;" data-mce-style="font-size: 11px; line-height: 14px;"><br></span></span></span></div></td></tr></tbody></table></div></div><span name="x"></span><br></div><hr id="zwchr"><div style="color:#000;font-weight:normal;font-style:normal;text-decoration:none;font-family:Helvetica,Arial,sans-serif;font-size:12pt;"><b>From: </b>"Ruben S. Montero" <rsmontero@opennebula.org><br><b>To: </b>"Gareth Bult" <gareth@linux.co.uk><br><b>Cc: </b>dev@lists.opennebula.org<br><b>Sent: </b>Sunday, 12 January, 2014 10:36:30 PM<br><b>Subject: </b>Re: [one-dev] Live migration / recovery<br><div><br></div><div dir="ltr">Hi Gareth<div><br></div><div>As the migrate script can be easily updated we do not provide any hook for that. I'd go to kvm/migrate, and do a simple if [ $? ... after the virsh command to kill the cache on the target host.</div>
<div><br></div><div>Cheers</div><div><br></div><div>Ruben </div><div class="gmail_extra"><br><div><br></div><div class="gmail_quote">On Thu, Dec 19, 2013 at 12:54 PM, Gareth Bult <span dir="ltr"><<a href="mailto:gareth@linux.co.uk" target="_blank">gareth@linux.co.uk</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div style="font-size:12pt;font-family:trebuchet ms,sans-serif"><div>Hi,</div><div><br></div><div>I implemented live migration for the VDC driver a few weeks back and on the whole it seems to work</div>
<div>quite well. The "premigrate" script creates a cache instance on the target server and puts the source</div><div>cache into proxy mode, then the "postmigrate" script kills the original cache instance.</div>
<div><br></div><div>Problem :: if the migration fails, I'm left with a running cache on both the source and target servers, with</div><div>the source cache in proxy mode. I have a 1-line CLI command to revert the issue, but I need to hook into</div>
<div>the system in order to call it. </div><div><br></div><div><span style="font-size:12pt">How to do I </span><span style="font-size:12pt">do this, I guess effectively I need something like "postmigrate_fail" .. ???</span></div>
<div><br></div><div>tia</div><div>Gareth.</div><div><br></div><div><span></span><div><div><span style="font-size:small">--</span></div><div><span><span color="#888888" data-mce-style="color: #888888;" style="color: #888888;"></span></span><table class="mceItemTable">
<tbody><tr><td><img></td><td><b style="font-family:verdana,Helvetica,sans-serif;font-size:11px;line-height:14px">Gareth Bult</b><br><span style="color:#666666"><span style="font-family:verdana,Helvetica,sans-serif"><span style="font-size:11px;line-height:14px">“The odds of hitting your target go up dramatically when you aim at it.”</span></span></span><span style="color:#666666"><br>
</span><span style="color:#666666"><br></span><span style="color:#666666"><br></span></td></tr></tbody></table></div></div><span></span><br></div></div></div><br>_______________________________________________<br>
Dev mailing list<br>
<a href="mailto:Dev@lists.opennebula.org" target="_blank">Dev@lists.opennebula.org</a><br>
<a href="http://lists.opennebula.org/listinfo.cgi/dev-opennebula.org" target="_blank">http://lists.opennebula.org/listinfo.cgi/dev-opennebula.org<br clear="all"><div><br></div>-- <br></a><div dir="ltr"><a href="http://lists.opennebula.org/listinfo.cgi/dev-opennebula.org" target="_blank"><div>
<div>-- <br></div></div>Ruben S. Montero, PhD<br>Project co-Lead and Chief Architect</a><div><a href="http://lists.opennebula.org/listinfo.cgi/dev-opennebula.org" target="_blank">OpenNebula - Flexible Enterprise Cloud Made Simple<br>
</a><a href="http://www.OpenNebula.org" target="_blank">www.OpenNebula.org</a> | <a href="mailto:rsmontero@opennebula.org" target="_blank">rsmontero@opennebula.org</a> | @OpenNebula</div></div>
</blockquote></div></div></div>
</div><div><br></div></div></body></html>