Thank you for helping with previous issue. Unfortunately we got another. We have RHV manager with several different hosts. After the backup, vm placed on RHEL shuts down. In engine.log I found moment when this happen:
"VM '35183baa-1c70-4016-b7cd-528889876f19'(stor2rrd) moved from 'Up' --> 'Down'".
I attached whole logs to email. It doesn't matter if it's a full or incremental, results are always the same. RHVH hosts works properly.
2020-12-08 10:18:33,845+01 INFO [org.ovirt.engine.core.bll.storage.disk.image.ImageTransferUpdater] (default task-76) [60da31e3-92f6-4555-8c43-2f8afee272e0] Updating image transfer 87bdb42e-e64c-460d-97ac-218e923336a1 (image e57e4af0-5d0b-4f60-9e6c-e217c666e5e6)
phase to Finalizing Success
2020-12-08 10:18:33,940+01 INFO [org.ovirt.engine.core.bll.StopVmBackupCommand] (default task-76) [89ec1a77-4b46-42b0-9d0f-15e53d5f952a] Running command: StopVmBackupCommand internal: false. Entities affected : ID: 35183baa-1c70-4016-b7cd-528889876f19
Type: VMAction group BACKUP_DISK with role type ADMIN, ID: e57e4af0-5d0b-4f60-9e6c-e217c666e5e6 Type: DiskAction group BACKUP_DISK with role type ADMIN
2020-12-08 10:18:33,940+01 INFO [org.ovirt.engine.core.bll.StopVmBackupCommand] (default task-76) [89ec1a77-4b46-42b0-9d0f-15e53d5f952a] Stopping VmBackup 'aae03819-cea6-45a1-9ee5-0f831af8464d'
2020-12-08 10:18:33,952+01 INFO [org.ovirt.engine.core.vdsbroker.vdsbroker.StopVmBackupVDSCommand] (default task-76) [89ec1a77-4b46-42b0-9d0f-15e53d5f952a] START, StopVmBackupVDSCommand(HostName = rhv-2, VmBackupVDSParameters:{hostId='afad6b8b-78a6-4e9a-a9bd-783ad42a2d47',
backupId='aae03819-cea6-45a1-9ee5-0f831af8464d'}), log id: 78b2c27a
2020-12-08 10:18:33,958+01 INFO [org.ovirt.engine.core.vdsbroker.vdsbroker.StopVmBackupVDSCommand] (default task-76) [89ec1a77-4b46-42b0-9d0f-15e53d5f952a] FINISH, StopVmBackupVDSCommand, return: , log id: 78b2c27a
2020-12-08 10:18:33,975+01 INFO [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (default task-76) [89ec1a77-4b46-42b0-9d0f-15e53d5f952a] EVENT_ID: VM_BACKUP_FINALIZED(10,794), Backup <UNKNOWN> for VM stor2rrd finalized (User: admin@internal-authz).
2020-12-08 10:18:35,221+01 INFO [org.ovirt.engine.core.sso.servlets.OAuthRevokeServlet] (default task-73) [] User admin@internal successfully logged out
2020-12-08 10:18:35,236+01 INFO [org.ovirt.engine.core.bll.aaa.TerminateSessionsForTokenCommand] (default task-81) [1b35276c] Running command: TerminateSessionsForTokenCommand internal: true.
2020-12-08 10:18:35,236+01 INFO [org.ovirt.engine.core.bll.aaa.SessionDataContainer] (default task-81) [1b35276c] Not removing session '90TxdK0PBueLijy+sCrFoHC/KNUGNzNpZuYMK/yKDAkbAefFr+8wOJsATsDKv18LxpyxCl+eX7hTHNxN23anAw==', session has running commands
for user 'admin@internal-authz'.
2020-12-08 10:18:35,447+01 INFO [org.ovirt.engine.core.vdsbroker.monitoring.VmAnalyzer] (ForkJoinPool-1-worker-31) [] VM '35183baa-1c70-4016-b7cd-528889876f19' was reported as Down on VDS 'afad6b8b-78a6-4e9a-a9bd-783ad42a2d47'(rhv-2)
2020-12-08 10:18:35,448+01 INFO [org.ovirt.engine.core.vdsbroker.vdsbroker.DestroyVDSCommand] (ForkJoinPool-1-worker-31) [] START, DestroyVDSCommand(HostName = rhv-2, DestroyVmVDSCommandParameters:{hostId='afad6b8b-78a6-4e9a-a9bd-783ad42a2d47', vmId='35183baa-1c70-4016-b7cd-528889876f19',
secondsToWait='0', gracefully='false', reason='', ignoreNoVm='true'}), log id: 4f473135
2020-12-08 10:18:35,451+01 INFO [org.ovirt.engine.core.vdsbroker.vdsbroker.DestroyVDSCommand] (ForkJoinPool-1-worker-31) [] FINISH, DestroyVDSCommand, return: , log id: 4f473135
2020-12-08 10:18:35,451+01 INFO [org.ovirt.engine.core.vdsbroker.monitoring.VmAnalyzer] (ForkJoinPool-1-worker-31) [] VM '35183baa-1c70-4016-b7cd-528889876f19'(stor2rrd) moved from 'Up' --> 'Down'
2020-12-08 10:18:35,466+01 ERROR [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (ForkJoinPool-1-worker-31) [] EVENT_ID: VM_DOWN_ERROR(119), VM stor2rrd is down with error. Exit message: Lost connection with qemu process.
2020-12-08 10:18:35,484+01 INFO [org.ovirt.engine.core.bll.ProcessDownVmCommand] (EE-ManagedThreadFactory-engine-Thread-34085) [3da40159] Running command: ProcessDownVmCommand internal: true.