After step4, I use the qmp-shell to check the blockjob
# systemctl stop libvirtd;
# ~/qemu/scripts/qmp/qmp-shell /var/lib/libvirt/qemu/domain-n1/monitor.sock
Welcome to the QMP low-level shell!
Connected to QEMU 2.5.0
(QEMU) query-block-jobs
{"return": []}
It is sure that qemu-kvm return null from blockjob query. So it's an issue on qemu-kvm not libvirt.
(In reply to Cole Robinson from comment #3)
> jeff, another blockjob related bit. could it be related to #1300209 ?
I was able to reproduce this bug, and it has same root cause as bz #1300209. The posted patch for that bug, fixes this bug as well.
*** This bug has been marked as a duplicate of bug 1300209 ***
Description of problem: After active committing and pivoting into base image, if mirroring the disk to a destination, no progress was displayed when querying block job Version-Release number of selected component (if applicable): libvirt-1.3.1-1.fc24_v1.3.1_rc2.x86_64 qemu-kvm-2.5.0-3.fc24.x86_64 How reproducible: 100% Steps to Reproduce: 1. prepare a transient domain # virsh list --transient Id Name State ---------------------------------------------------- 12 generic running # virsh domblklist generic Target Source ------------------------------------------------ hda /var/lib/libvirt/images/generic.qcow2 2. take 3 external snapshots # virsh snapshot-create-as generic --disk-only --no-metadata --diskspec hda,file=/var/lib/libvirt/images/generic.s1 Domain snapshot 1453268106 created # virsh console generic dd a file in guest # dd if=/dev/urandom of=ha bs=1024 count=102400 # virsh snapshot-create-as generic --disk-only --no-metadata --diskspec hda,file=/var/lib/libvirt/images/generic.s2 Domain snapshot 1453268188 created dd a file in guest # dd if=/dev/urandom of=haha bs=1024 count=102400 # virsh snapshot-create-as generic --disk-only --no-metadata --diskspec hda,file=/var/lib/libvirt/images/generic.s3 Domain snapshot 1453268204 created dd a file in guest # dd if=/dev/urandom of=hahaha bs=1024 count=102400 # virsh domblklist generic Target Source ------------------------------------------------ hda /var/lib/libvirt/images/generic.s3 # qemu-img info /var/lib/libvirt/images/generic.s3 --backing-chain image: /var/lib/libvirt/images/generic.s3 file format: qcow2 virtual size: 8.0G (8589934592 bytes) disk size: 248M cluster_size: 65536 backing file: /var/lib/libvirt/images/generic.s2 backing file format: qcow2 Format specific information: compat: 1.1 lazy refcounts: false refcount bits: 16 corrupt: false image: /var/lib/libvirt/images/generic.s2 file format: qcow2 virtual size: 8.0G (8589934592 bytes) disk size: 56M cluster_size: 65536 backing file: /var/lib/libvirt/images/generic.s1 backing file format: qcow2 Format specific information: compat: 1.1 lazy refcounts: false refcount bits: 16 corrupt: false image: /var/lib/libvirt/images/generic.s1 file format: qcow2 virtual size: 8.0G (8589934592 bytes) disk size: 132M cluster_size: 65536 backing file: /var/lib/libvirt/images/generic.qcow2 backing file format: qcow2 Format specific information: compat: 1.1 lazy refcounts: false refcount bits: 16 corrupt: false image: /var/lib/libvirt/images/generic.qcow2 file format: qcow2 virtual size: 8.0G (8589934592 bytes) disk size: 2.0G cluster_size: 65536 Format specific information: compat: 1.1 lazy refcounts: true refcount bits: 16 corrupt: false 3. active commit & pivot # virsh blockcommit generic hda --active --wait --verbose Block commit: [100 %] Now in synchronized phase [root@fedora_yy ~]# virsh blockjob generic hda Active Block Commit: [100 %] [root@fedora_yy ~]# virsh blockjob generic hda --pivot [root@fedora_yy ~]# virsh domblklist generic Target Source ------------------------------------------------ hda /var/lib/libvirt/images/generic.qcow2 4. block mirror # virsh blockcommit generic hda --active --wait --verbose Block commit: [100 %] Now in synchronized phase 5. query block job # virsh blockjob generic hda No current block job for hda 6. # virsh dumpxml generic | grep disk -a6 <disk type='file' device='disk'> <driver name='qemu' type='qcow2'/> <source file='/var/lib/libvirt/images/generic.qcow2'/> <backingStore/> <mirror type='file' file='/tmp/copy' format='qcow2' job='copy' ready='yes'> <format type='qcow2'/> <source file='/tmp/copy'/> </mirror> <target dev='hda' bus='ide'/> <alias name='ide0-0-0'/> <address type='drive' controller='0' bus='0' target='0' unit='0'/> </disk> Actual results: In step 5, no progress was displayed Expected results: Display progress when querying block job Additional info: