Hide Forgot
Description of problem: We tried to free a storage domain in OVirt 4.0.4. therefore we used LieveStorageMigration heavily. After ~20 successful execution the 21st breaks in the last step of the flow "delete auto-generated snapshot". It is initiated but never finishes. Version-Release number of selected component (if applicable): Ovirt 4.0.4 (current release) vdsm 4.17.28 (last Centos release from 3.6.7) How reproducible: 5% Steps to Reproduce: 1. do LiveStorage Migration. 2. 3. Actual results: Task is started in engine but never finishes Expected results: Task should finish. Additional info: Engine & VDSM logs attached.
Created attachment 1220124 [details] VDM log
Created attachment 1220125 [details] engine log
The live migrated disk that fails in the logs is "colvm21_Disk1"
According to virsh qemu is still working with the snapshot: virsh # domblklist colvm21 Ziel Quelle ------------------------------------------------ ... vda /rhev/data-center/94ed7a19-fade-4bd6-83f2-2cbb2f730b95/47202573-6e83-42fd-a274-d11f05eca2dd/images/c7590ac7-8ba6-4738-9909-0267c21a056c/4f041c43-74a5-4538-a171-84507e0fdc17 ... qemu-img info 4f041c43-74a5-4538-a171-84507e0fdc17 image: 4f041c43-74a5-4538-a171-84507e0fdc17 file format: qcow2 virtual size: 35G (37580963840 bytes) disk size: 971M cluster_size: 65536 backing file: ../c7590ac7-8ba6-4738-9909-0267c21a056c/6471d8f5-4f6d-419a-8432-7ec2c0dc46ae backing file format: raw Format specific information: compat: 0.10 refcount bits: 16
According to virsh the block-commit is still active at 100% virsh # blockjob colvm21 /rhev/data-center/94ed7a19-fade-4bd6-83f2-2cbb2f730b95/47202573-6e83-42fd-a274-d11f05eca2dd/images/c7590ac7-8ba6-4738-9909-0267c21a056c/4f041c43-74a5-4538-a171-84507e0fdc17 --info Active Block Commit: [100 %] The second VM disk shows no running action virsh # blockjob colvm21 /rhev/data-center/94ed7a19-fade-4bd6-83f2-2cbb2f730b95/c86d8409-4dd6-4e30-86dc-b5175a7ceb86/images/e74a14d7-3400-47d3-901b-b64e3a9118a4/7aac8b54-dad9-4e47-89fa-68b769ea5435 --info No current block job for /rhev/data-center/94ed7a19-fade-4bd6-83f2-2cbb2f730b95/c86d8409-4dd6-4e30-86dc-b5175a7ceb86/images/e74a14d7-3400-47d3-901b-b64e3a9118a4/7aac8b54-dad9-4e47-89fa-68b769ea5435
qemu Version is 2.3.0-31.el7_2.10.1
libvirtd version is 1.2.17-13.el7_2.4
Hi Markus, As long as the block job runs, the corresponding task will not finish. This is expected. The question here is why the block job seems not to end. Is there any high I/O on that specific disk during the migration? Could this be similar to BZ 1376580 also reported by you?
4.0.6 has been the last oVirt 4.0 release, please re-target this bug.
Closing as there's no new info for nearly 2 months, feel free to reopen if new data will arrive