NVP vProxy: SQL VM (MSVMAPPAGENT) Backups Fail with "Error received from vProxy"-400: The request is missing the VM username. ""
Resumo: A Microsoft SQL Virtual Machine (VM) backup performed using the NetWorker VMware Protection (NVP) vProxy appliance fails. The NetWorker backup action log shows "Error received from vProxy ="-400: The request is missing the VM username." " ...
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Sintomas
- A Microsoft SQL server backup is configured using the NetWorker VMware Protection (NVP) vProxy appliance.
- The Protection Policy's backup action is configured with the "Application Consistency" option enabled to perform SQL app-consistent (MSVMAPPAGENT) backups.
- The backup fails with the following error reported in the backup action logs:
- The vProxy's
/opt/emc/vproxy/runtime/logs/vbackup/vbackupd-engine.logshows similar error messaging:
vproxy02:~ # tail -n 15 /opt/emc/vproxy/runtime/logs/vbackupd/vbackupd-engine.log
YYYY-MM-DDTHH:mm:SSZ NOTICE: f07a24dd-e7c3-48e5-8f89-3053c3249a65:vm-1013:win-sql02: Backup session is exiting
YYYY-MM-DDTHH:mm:SSZ TRACE: Resource Update f07a24dd-e7c3-48e5-8f89-3053c3249a65:externalId=vcsa.amer.lan:vm-1013:state=Success:deletable=true:updatable=true.
YYYY-MM-DDTHH:mm:SSZ INFO: Request #4881: Handling action 'GetLog' for 'f07a24dd-e7c3-48e5-8f89-3053c3249a65' ...
YYYY-MM-DDTHH:mm:SSZ TRACE: Request #4881: Reply sent successfully for 'GetLog'.
YYYY-MM-DDTHH:mm:SSZ INFO: Request #4882: Handling action 'DeleteSession' for 'f07a24dd-e7c3-48e5-8f89-3053c3249a65' ...
YYYY-MM-DDTHH:mm:SSZ INFO: Request #4882: Deleting logfiles of session 'f07a24dd-e7c3-48e5-8f89-3053c3249a65'...
YYYY-MM-DDTHH:mm:SSZ TRACE: Request #4882: Deleting log file '/opt/emc/vproxy/runtime/logs/vbackupd/BackupVmSessions-f07a24dd-e7c3-48e5-8f89-3053c3249a65.log' of session 'f07a24dd-e7c3-48e5-8f89-3053c3249a65'...
YYYY-MM-DDTHH:mm:SSZ INFO: File '/opt/emc/vproxy/runtime/logs/vbackupd/BackupVmSessions-f07a24dd-e7c3-48e5-8f89-3053c3249a65.log' is moved to '/opt/emc/vproxy/runtime/logs/recycle/vbackupd/20240112_1/BackupVmSessions-f07a24dd-e7c3-48e5-8f89-3053c3249a65.log'.
YYYY-MM-DDTHH:mm:SSZ INFO: Request #4882: Deleted log file '/opt/emc/vproxy/runtime/logs/vbackupd/BackupVmSessions-f07a24dd-e7c3-48e5-8f89-3053c3249a65.log'.
YYYY-MM-DDTHH:mm:SSZ INFO: Request #4882: Deleted resource: vcsa.amer.lan:vm-1013 - f07a24dd-e7c3-48e5-8f89-3053c3249a65.
YYYY-MM-DDTHH:mm:SSZ TRACE: Request #4882: Reply sent successfully for 'DeleteSession'.
YYYY-MM-DDTHH:mm:SSZ INFO: Request #4884: Handling action 'StartSession' for 'BackupVmSessions' ...
YYYY-MM-DDTHH:mm:SSZ ERROR: Request #4884: Request is missing the VM user name.
YYYY-MM-DDTHH:mm:SSZ ERROR: Request #4884: Failed to create resource: -400: Request is missing the VM user name.
YYYY-MM-DDTHH:mm:SSZ TRACE: Request #4884: Reply sent successfully for 'StartSession'.
- Image backups of the VM which do not use "Application Consistency" complete successfully.
Causa
The backup action in the NetWorker Protection Policy is missing the SQL instance user login in the "Application Consistency" settings.
Resolução
Update the backup action to include a user with System Administrator rights:
The user account specified should have sysadmin rights. This can be confirmed in the SQL Server Management Studio (SSMS) on the SQL VM:
Mais informações
MSVMAPPAGENT logs can be found on the SQL VM under C:\Program Files\DPSAPPS\MSVMAPPAGENT\logs
Produtos afetados
NetWorkerProdutos
NetWorker Family, NetWorker SeriesPropriedades do artigo
Número do artigo: 000221097
Tipo de artigo: Solution
Último modificado: 30 dez. 2025
Versão: 4
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