N-able Backup: Hyper-V Backup fails with the error: "UNIQUE constraint failed: Node.NodeId, Node.SessionId. Error code: 19:2067 (constraint failed)"

Last Modified

Thu Dec 31 11:29 GMT 2020

Description

  • Hyper-V Backup fails with the error: "UNIQUE constraint failed: Node.NodeId, Node.SessionId. Error code: 19:2067 (constraint failed)".

Environment

  • N-able Backup

Solution

  • Primary solution using the Backup Manager :
  1. From the Backup tab edit the source. .
  2. Clear the selection for the virtual machine from the backup tab in Backup Manager..
    • Note: When clearing the selection you may be asked if you want to clear data on the cloud. Ensure you say NO to this.
  3. Edit the source again and check only the VM's your want to backup.
  4. Exclude the unneeded virtual disks.
  5. Save the selection.
  • Secondary solution if primary solution doesn't work:
  1. Navigate to C:\Program Files\Backup Manager\.
  2. Open config.ini.
  3. Add the following lines to the end of file:
    [HyperV]
    UseSnapshotLimitsOnBackup=0
    LimitSnapshotSizeGB=0
    LimitSnapshotComponentsCount=0
  4. Restart the Backup Service Controller:
    1. Press WinKey + R.
    2. Type Services.msc then press OK.
    3. Right click Backup Service Controller and click restart.