Consistent Error: Issue 1400

Since upgrading to, I have ONE backup consistently erroring out with

 [ 2019-01-08 15:29:38 -05 - [Error-Duplicati.Library.Main.Database.LocalBackupDatabase-CheckingErrorsForIssue1400]: 
                             Checking errors, related to #1400. Unexpected result count: 0, expected 1, 
                             hash: xWtl5aJWI3oJrs2D6BWetEfG0IKJo/isQmmhuWzGEbk=, size: 102400, blocksetid: 233799, 
                             ix: 36, fullhash: OUBz8ySqRr8lQ96riIAhLXMAhbqpHCUpGGsoZRTrAV4=, fullsize: 4733840
   2019-01-08 15:29:38 -05 - [Error-Duplicati.Library.Main.Database.LocalBackupDatabase-FoundIssue1400Error]: 
                             Found block with ID 6477251 and hash xWtl5aJWI3oJrs2D6BWetEfG0IKJo/isQmmhuWzGEbk= 
                             and size 54272 ]

I have rebuilt the database from scratch twice, to no avail.

What can be done about this?

Thank you for seeing if rebuild would help avoid it. Especially if you’re on Windows, have you tried setting the –snapshot-policy option to on or some similar value that attempts to freeze a view of the changing filesystem?

Checking errors, related to #1400. Unexpected result count: 0, expected 1 has other comments on this issue.

My snapshot was set globally to Auto. I have switched it to On to get log warnings if it’s failing on this one backup.

BTW: The machine is Linux, not Windows.

Welp. Getting snapshot creation failures on all three backups running here.
2019-01-12 15:14:29 -05 - [Warning-Duplicati.Library.Main.Operation.BackupHandler-SnapshotFailed]: Failed to create a snapshot: System.Exception: The external command failed to start. Error message: Duplicati.Library.Interface.UserInformationException: The script returned exit code 255, but 0 was expected: Exit code: 255 Error: unable to determine volume group (VG) for /home/david/

PLUS the Error 1400 on the same one that has been.

Is your system using LVM? Snapshot will not work without it.

It is not. I will turn off snapshot.

Due for a rebuild, anyway :slight_smile: