Re: Libvirt and Ceph: libvirtd tries to open random RBD images

Hello Daniel, Please let us know if there are any hints for us.

Thanks, Jayanth On Wed, Nov 22, 2023 at 11:36 AM Jayanth Reddy <jayanthreddy5666(a)gmail.com&gt; wrote: > Hello Daniel, > Thank you for the response. > I checked and confirmed that all these hosts are identical in-terms of > spec and the permissions given. The secrets on all the hosts are intact and > identical. > > Or is RBD preventing this host access the volume, becuase another VM has > it in use > Not sure because I believe this should be the same as executing *# rbd du > <pool>/<image>* right? > > Some additional information: > # kvm --version > QEMU emulator version 4.2.1 (Debian 1:4.2-3ubuntu6.27) > Copyright (c) 2003-2019 Fabrice Bellard and the QEMU Project developers > > # libvirtd --version > libvirtd (libvirt) 6.0.0 > We're using Ubuntu Server 20.04 LTS. > > At this point, there are no issues identified, but we're interested in > knowing the cause and not sure if there are some network issues which > cause this. Thank you very much for any help you can provide. > > Thanks, > Jayanth > > On Mon, Nov 20, 2023 at 6:55 PM Daniel P. Berrangé <berrange(a)redhat.com&gt; > wrote: > >> On Mon, Nov 20, 2023 at 01:21:24PM +0000, Jayanth Reddy wrote: >> > Hello Daniel, >> > >> > Thank you for the response. Please also let me know why libvirtd says >> "No such file or directory" even though the block images exist and are >> healthy. >> >> I don't know the cause - all we're seeing is that the API call >> >> if ((ret = rbd_open_read_only(ptr->ioctx, vol->name, &image, NULL)) < >> 0) { >> >> is failing. Maybe RBD has permission denying access on this host ? >> Or is RBD preventing this host access the volume, becuase another >> VM has it in use >> >> >> With regards, >> Daniel >> -- >> |: https://berrange.com -o- >> https://www.flickr.com/photos/dberrange :| >> |: https://libvirt.org -o- >> https://fstop138.berrange.com :| >> |: https://entangle-photo.org -o- >> https://www.instagram.com/dberrange :| >> >>