<div dir="ltr"><div>Not sure if it's related at all, but is there any chance this has anything to do with:<br><br><a href="https://bugzilla.redhat.com/show_bug.cgi?id=987555">https://bugzilla.redhat.com/show_bug.cgi?id=987555</a><br>
<br></div>It came to mind as something to do with glusterfs+libvirt+migration.<br><br>HTH,<br>James<br><br></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Thu, Jan 16, 2014 at 5:52 AM, Bernhard Glomm <span dir="ltr"><<a href="mailto:bernhard.glomm@ecologic.eu" target="_blank">bernhard.glomm@ecologic.eu</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><font face="tahoma, arial, helvetica, sans-serif">I experienced a strange behavior of glusterfs during livemigration</font><div style="font-family:tahoma,arial,helvetica,sans-serif">
of a qemu-kvm guest </div><div style="font-family:tahoma,arial,helvetica,sans-serif">using a 10GB file on a mirrored gluster 3.4.2 volume</div><div style="font-family:tahoma,arial,helvetica,sans-serif">(both on ubuntu 13.04)</div>
<div style="font-family:tahoma,arial,helvetica,sans-serif">I run</div><div><font face="tahoma, arial, helvetica, sans-serif">virsh migrate --verbose --live --unsafe --p2p --domain atom01 --desturi qemu+ssh://<target_ip>/system</font></div>
<div><font face="tahoma, arial, helvetica, sans-serif">and the migration works,</font></div><div><font face="tahoma, arial, helvetica, sans-serif">the running machine is pingable and keeps sending pings.</font></div><div>
<font face="tahoma, arial, helvetica, sans-serif">nevertheless, when I let the machine touch a file during migration</font></div><div><font face="tahoma, arial, helvetica, sans-serif">it stops, complaining that it's filesystem is read only (from that moment that </font></div>
<div><font face="tahoma, arial, helvetica, sans-serif">migration finished)</font></div><div>A reboot from inside the machine failes,</div><div>machine goes down and comes up with an error</div><div>unable to write to sector xxxxxx on hd0</div>
<div>(than falling into the initrd).</div><div>a </div><div>virsh destroy VM && virsh start VM</div><div>leads to a perfect running VM again,</div><div>no matter on which of the two hosts I start the machine</div>
<div>anybody better experience with livemigration?</div><div>any hint on a procedure how to debug that?</div><div>TIA</div><div>Bernhard</div><div><br></div><div><div style="font-family:tahoma,arial,helvetica,sans-serif">
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