Hi, We recently upgraded our Ceph from Luminous to Nautilus and upgraded the ceph clients on OpenStack (using rbd). All went well and after a few days, we randomly saw instances getting stuck with libvirt_qemu_exporter, which is getting the libvirt stuck on Openstack compute nodes. We had to kill those instances process, and then libvirt is returning. But the issue is happening again on the compute nodes with other instances. Upon doing some research, I found that we need to migrate the instances to use the latest (nautilus) ceph client, as they still use the old(luminous) client when spun up. The only way to get them to have the Nautilus client is to live migrate or reboot. We have thousands of instances, and doing any of those takes a long time without impacting the customer. Is there any other fix to solve this issue without migrating or rebooting the instances? Error on compute hosts: (renamed host and instance id) Feb 18 00:08:00 cmp03 libvirtd[5362]: 2025-02-18 00:08:00.510+0000: 5627: warning : qemuDomainObjBeginJobInternal:4933 : Cannot start job (query, none) for domain instance-009141b8; current job is (query, none) owned by (5628 remoteDispatchDomainBlockStats, 0 <null>) for (322330s, 0s) Thanks, Pardhiv