Created attachment 1776391 [details] engine logs Description of problem: image transfer fails if user deleted snapshot on a RAW disk where incremental backup was been enable Version-Release number of selected component (if applicable): ovirt-4.4.5 vdsm-4.40.50.10-1.el8ev.x86_64 ovirt-imageio-daemon-2.1.1-1.el8ev.x86_64 libvirt-daemon-6.6.0-13.2.module+el8.3.1+10483+85317cf0.x86_64 qemu-kvm-5.1.0-21.module+el8.3.1+10464+8ad18d1a.x86_64 How reproducible: Create vm with QCOW and RAW disks take a snapshot Enable incremental backup option on both disks Make full backup Make incremental backup Delete the snapshot start incremental backup Actual results: backup crashed Expected results: RAW disk sucessfully backuped in full mode Additional info: 2021-04-23 15:07:09,806+02 ERROR [org.ovirt.engine.core.vdsbroker.vdsbroker.StartNbdServerVDSCommand] (default task-276) [e1d58a42-e58b-4e65-8e56-4e385b45d404] Failed in 'StartNbdServerVDS' method 2021-04-23 15:07:09,806+02 WARN [org.ovirt.engine.core.vdsbroker.vdsbroker.StartNbdServerVDSCommand] (default task-276) [e1d58a42-e58b-4e65-8e56-4e385b45d404] Unexpected return value: Status [code=2009, message=Unsupported operation: 'reason=Cannot export bitmap from RAW volume, context={}'] 2021-04-23 15:07:09,815+02 ERROR [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (default task-276) [e1d58a42-e58b-4e65-8e56-4e385b45d404] EVENT_ID: VDS_BROKER_COMMAND_FAILURE(10,802), VDSM pan-rhv44rel1 command StartNbdServerVDS failed: Unsupported operation: 'reason=Cannot export bitmap from RAW volume, context={}' after unsucessfull backup engine trys to close the ticket, but can't do that Failed to stop image transfer session. Ticket does not exist for image '4c23c18c-7804-4850-a5d1-41391fdc4482' Unable to create snapshot on a RAW disk after incremental backup Description of problem: I can’t create snapshot on a VM with RAW disk after few incremental backups Version-Release number of selected component (if applicable): How reproducible: ovirt-4.4.5 vdsm-4.40.50.10-1.el8ev.x86_64 ovirt-imageio-daemon-2.1.1-1.el8ev.x86_64 libvirt-daemon-6.6.0-13.2.module+el8.3.1+10483+85317cf0.x86_64 qemu-kvm-5.1.0-21.module+el8.3.1+10464+8ad18d1a.x86_64 Steps to Reproduce: I’m not sure how reproduce that case. 1. Create vm with RAW disk 2. Take a snapshot 3. Enable incremental backup option on the disk 4. Do few incremental backups 5. Delete snapshot. VM should be left without any snapshots and incremental backup option is disabled. 6. Try to take a new snapshot Actual results: Snapshot doesn’t create Expected results: Snapshot successfully created Additional info: 2021-04-27 17:20:13,159+02 ERROR [org.ovirt.engine.core.vdsbroker.vdsbroker.HSMGetAllTasksStatusesVDSCommand] (EE-ManagedScheduledExecutorService-engineScheduledThreadPool-Thread-65) [] Failed in 'HSMGetAllTasksStatusesVDS' method 2021-04-27 17:20:13,159+02 WARN [org.ovirt.engine.core.vdsbroker.vdsbroker.HSMGetAllTasksStatusesVDSCommand] (EE-ManagedScheduledExecutorService-engineScheduledThreadPool-Thread-65) [] Unexpected return value: TaskStatus [code=2009, message=value=Unsupported operation: "reason=Cannot add bitmaps from parent volume with raw format, context={'srcVolUUID': '52f18270-5070-4aa6-8305-8caac3248321'}" abortedcode=2009] 2021-04-27 17:20:13,177+02 ERROR [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (EE-ManagedScheduledExecutorService-engineScheduledThreadPool-Thread-65) [] EVENT_ID: VDS_BROKER_COMMAND_FAILURE(10,802), VDSM pan-rhv44rel1 command HSMGetAllTasksStatusesVDS failed: value=Unsupported operation: "reason=Cannot add bitmaps from parent volume with raw format, context={'srcVolUUID': '52f18270-5070-4aa6-8305-8caac3248321'}" abortedcode=2009
Yury, did you try to create a live snapshot for the VM? Does the VM run throughout that flow?
Hello, Eyal. > did you try to create a live snapshot for the VM? No vm is powered off > Does the VM run throughout that flow? So, i started the vm and snapshot with memory sucessfully created.
OK, so now it is clear and we have a workaround for that issue.
Steps to reproduce: 1) Create a VM with RAW format disk 2) Create a snapshot for the VM 3) Start the VM 4) Start a full backup 5) Start an incremental backup 6) Power-off the VM 7) Remove the snapshot 8) Create a new snapshot Snapshot creation failed while it should succeed.
(In reply to Eyal Shenitzky from comment #4) > Steps to reproduce: > 1) Create a VM with RAW format disk > 2) Create a snapshot for the VM > 3) Start the VM > 4) Start a full backup > 5) Start an incremental backup > 6) Power-off the VM > 7) Remove the snapshot > 8) Create a new snapshot > > Snapshot creation failed while it should succeed. This flow also prevents from moving and copying the disk so those should be tested also. 8.1) Create a new snapshot 8.2) Try to move the disk to a different domain 8.3) Try to copy the disk
Version: ovirt-engine-4.4.7.3-0.3.el8ev.noarch rhv-release-4.4.7-3-001.noarch redhat-release-8.4-0.6.el8.x86_64 redhat-release-eula-8.4-0.6.el8.x86_64 vdsm-4.40.70.3-1.el8ev.x86_64 Verification conclusions: The expected output matched the actual output. The total flow Eyal (steps 1-8.3) mentioned in #c5 was done with no errors/unexpected logs. I was able to copy/move the disk as well as create additional snapshots. Bug verified.
This bugzilla is included in oVirt 4.4.7 release, published on July 6th 2021. Since the problem described in this bug report should be resolved in oVirt 4.4.7 release, it has been closed with a resolution of CURRENT RELEASE. If the solution does not work for you, please open a new bug report.