Indeed. Ensure you have SSH access between compute nodes (I'm working on some code to remove this requirement, but it may be a while before it gets merged).
Also, if you can, could you post logs somewhere with the 'debug' config option enabled? I might be able to spot something quickly, since I've been working on the related code recently. Best Regards, Solly Ross ----- Original Message ----- > From: "Vishvananda Ishaya" <vishvana...@gmail.com> > To: "OpenStack Development Mailing List (not for usage questions)" > <openstack-dev@lists.openstack.org> > Sent: Tuesday, November 18, 2014 4:07:31 PM > Subject: Re: [openstack-dev] [OpenStack-dev][Nova] Migration stuck - > resize/migrating > > Migrate/resize uses scp to copy files back and forth with the libvirt driver. > This shouldn’t be necessary with shared storage, but it may still need ssh > configured between the user that nova is running as in order to complete the > migration. It is also possible that there is a bug in the code path dealing > with shared storage, although I would have expected you to see a traceback > somewhere. > > Vish > > On Nov 11, 2014, at 1:10 AM, Eduard Matei < eduard.ma...@cloudfounders.com > > wrote: > > > > > Hi, > > I'm testing our cinder volume driver in the following setup: > - 2 nodes, ubuntu, devstack juno (2014.2.1) > - shared storage (common backend), our custom software solution + cinder > volume on shared storage > - 1 instance running on node 1, /instances directory on shared storage > - kvm, libvirt (with live migration flags) > > Live migration of instance between nodes works perfectly. > Migrate simply blocks. The instance in in status Resize/Migrate, no errors in > n-cpu or n-sch, and it stays like that for over 8 hours (all night). I > thought it was copying the disk, but it's a 20GB sparse file with approx. > 200 mb of data, and the nodes have 1Gbps link, so it should be a couple of > seconds. > > Any difference between live migration and "migration"? > As i said, we use a "shared filesystem"-like storage solution so the volume > files and the instance files are visible on both nodes, so no data needs > copying. > > I know it's tricky to debug since we use a custom cinder driver, but anyone > has any ideas where to start looking? > > Thanks, > Eduard > > -- > Eduard Biceri Matei, Senior Software Developer > www.cloudfounders.com > | eduard.ma...@cloudfounders.com > > CloudFounders, The Private Cloud Software Company > Disclaimer: > This email and any files transmitted with it are confidential and intended > solely for the use of the individual or entity to whom they are addressed. > If you are not the named addressee or an employee or agent responsible for > delivering this message to the named addressee, you are hereby notified that > you are not authorized to read, print, retain, copy or disseminate this > message or any part of it. If you have received this email in error we > request you to notify us by reply e-mail and to delete all electronic files > of the message. If you are not the intended recipient you are notified that > disclosing, copying, distributing or taking any action in reliance on the > contents of this information is strictly prohibited. > E-mail transmission cannot be guaranteed to be secure or error free as > information could be intercepted, corrupted, lost, destroyed, arrive late or > incomplete, or contain viruses. The sender therefore does not accept > liability for any errors or omissions in the content of this message, and > shall have no liability for any loss or damage suffered by the user, which > arise as a result of e-mail transmission. > _______________________________________________ > OpenStack-dev mailing list > OpenStack-dev@lists.openstack.org > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev > > > _______________________________________________ > OpenStack-dev mailing list > OpenStack-dev@lists.openstack.org > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev > _______________________________________________ OpenStack-dev mailing list OpenStack-dev@lists.openstack.org http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
