Warnings when running Nextcloud backup

Support
1

Hi all.

I’m trying to back up my Nextcloud (Docker) installation and I’m getting the following warnings:

Warning while running Nextcloud to WHB

"Warnings": [
    "2023-02-19 02:00:03 -03 - [Warning-Duplicati.Library.Main.Operation.Backup.FileEnumerationProcess-FileAccessError]: Error reported while accessing file: /source/nextcloud/data/",
    "2023-02-19 02:00:03 -03 - [Warning-Duplicati.Library.Main.Operation.Backup.FileEnumerationProcess-FileAccessError]: Error reported while accessing file: /source/nextcloud/data/",
    "2023-02-19 02:00:03 -03 - [Warning-Duplicati.Library.Main.Operation.Backup.FileEnumerationProcess-FileAccessError]: Error reported while accessing file: /source/nextcloud/data/",
    "2023-02-19 02:00:03 -03 - [Warning-Duplicati.Library.Main.Operation.Backup.FileEnumerationProcess-FileAccessError]: Error reported while accessing file: /source/nextcloud/data/",
    "2023-02-19 02:00:03 -03 - [Warning-Duplicati.Library.Main.Operation.Backup.FileEnumerationProcess-FileAccessError]: Error reported while accessing file: /source/nextcloud/db/nextcloud/",
    "2023-02-19 02:00:03 -03 - [Warning-Duplicati.Library.Main.Operation.Backup.FileEnumerationProcess-FileAccessError]: Error reported while accessing file: /source/nextcloud/db/nextcloud/",
    "2023-02-19 02:00:03 -03 - [Warning-Duplicati.Library.Main.Operation.Backup.FileEnumerationProcess-FileAccessError]: Error reported while accessing file: /source/nextcloud/db/sys/",
    "2023-02-19 02:00:03 -03 - [Warning-Duplicati.Library.Main.Operation.Backup.FileEnumerationProcess-FileAccessError]: Error reported while accessing file: /source/nextcloud/db/sys/",
    "2023-02-19 02:00:03 -03 - [Warning-Duplicati.Library.Main.Operation.Backup.FileEnumerationProcess-FileAccessError]: Error reported while accessing file: /source/nextcloud/db/performance_schema/",
    "2023-02-19 02:00:03 -03 - [Warning-Duplicati.Library.Main.Operation.Backup.FileEnumerationProcess-FileAccessError]: Error reported while accessing file: /source/nextcloud/db/performance_schema/",
    "2023-02-19 02:00:03 -03 - [Warning-Duplicati.Library.Main.Operation.Backup.FileEnumerationProcess-FileAccessError]: Error reported while accessing file: /source/nextcloud/db/mysql/",
    "2023-02-19 02:00:03 -03 - [Warning-Duplicati.Library.Main.Operation.Backup.FileEnumerationProcess-FileAccessError]: Error reported while accessing file: /source/nextcloud/db/mysql/",
    "2023-02-19 02:00:04 -03 - [Warning-Duplicati.Library.Main.Operation.Backup.FileBlockProcessor.FileEntry-PathProcessingFailed]: Failed to process path: /source/nextcloud/db/aria_log_control",
    "2023-02-19 02:00:04 -03 - [Warning-Duplicati.Library.Main.Operation.Backup.FileBlockProcessor.FileEntry-PathProcessingFailed]: Failed to process path: /source/nextcloud/db/aria_log.00000001",
    "2023-02-19 02:00:04 -03 - [Warning-Duplicati.Library.Main.Operation.Backup.FileBlockProcessor.FileEntry-PathProcessingFailed]: Failed to process path: /source/nextcloud/db/ibdata1",
    "2023-02-19 02:00:04 -03 - [Warning-Duplicati.Library.Main.Operation.Backup.FileBlockProcessor.FileEntry-PathProcessingFailed]: Failed to process path: /source/nextcloud/db/ib_logfile0",
    "2023-02-19 02:00:04 -03 - [Warning-Duplicati.Library.Main.Operation.Backup.FileBlockProcessor.FileEntry-PathProcessingFailed]: Failed to process path: /source/nextcloud/db/multi-master.info",
    "2023-02-19 02:00:04 -03 - [Warning-Duplicati.Library.Main.Operation.Backup.FileBlockProcessor.FileEntry-PathProcessingFailed]: Failed to process path: /source/nextcloud/db/ib_buffer_pool",
    "2023-02-19 02:00:04 -03 - [Warning-Duplicati.Library.Main.Operation.Backup.FileBlockProcessor.FileEntry-PathProcessingFailed]: Failed to process path: /source/nextcloud/db/ddl_recovery.log",
    "2023-02-19 02:00:04 -03 - [Warning-Duplicati.Library.Main.Operation.Backup.FileEnumerationProcess-FileAccessError]: Error reported while accessing file: /source/nextcloud/db/nextcloud/"
  ],

This is where actual user files are stored: /source/nextcloud/data/
This is where the DB files are stored: /source/nextcloud/db/

I also tried setting Nextcloud to maintenance mode and stopping the container altogether with the same results.

Duplicati is also running as a Docker container with PUID=1000 and PGID=1000

2

Something I also noticed is that the “problematic” folders have an exclamation mark when editing the backup job:

image

3

Hello

the locked icon means that Duplicati can’t list the folder content. There is a rights problem in your configuration. If it was a vanilla installation, I’d say to check the access rights of the user running Duplicati, not being a Docker expert I can’t help you more. I remember dimly having seen on this forum posts about Docker talking about bind mounts.

4

Hello.

The folder data of nextcloud belongs to the user www-data.

You should check Nextcloud documentation about doing backups regularly.

2 Likes
5

Can you mark as solved?

:grinning:

1 Like
6

Thanks for the advice!

I ended up doing a backup + upload to an external site using a Nextcloud App :slight_smile:

1 Like