Consistent Error: Issue 1400

Support
1

Since upgrading to 2.0.4.5, I have ONE backup consistently erroring out with

Errors: 
 [ 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?

2

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.

3

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.

4

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.

5

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

6

It is not. I will turn off snapshot.

Due for a rebuild, anyway :slight_smile: