Problem: live-migrating a VM, the migration will complete but cause a VM to become unstable. The VM may become unreachable on the network, or go through a cycle where it hangs for ~10 mins at a time. A hard-reboot is the only way to resolve this.
Related libvirt logs: 2015-03-30 01:18:23.429+0000: 244411: warning : qemuMigrationCancelDriveMirror:1383 : Unable to stop block job on drive-virtio-disk0 2015-03-30 01:17:41.899+0000: 244408: warning : qemuDomainObjEnterMonitorInternal:1175 : This thread seems to be the async job owner; entering monitor without asking for a nested job is dangerous Nova env: Kernel : 3.11.0-26-generic libvirt-bin : 1.1.1-0ubuntu11 ceph-common : 0.67.9-1precise Ceph: Kernel: 3.13.0-36-generic ceph : 0.80.7-1precise ceph-common : 0.80.7-1precise Saw post here (https://bugs.dogfood.paddev.net/mos/+bug/1371130) that this might have something to do the libvirt migration with RBD image, but exactly how Ceph is related and how to resovle it if anyone had this before. Thanks. — Yuming
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