Backup frequency not understood

Product Support

AI-generated summary

The user Wurzelseppi is experiencing an issue with backup frequency settings on their Discourse board, where backups are only occurring every second day despite having the frequency set to 1 (daily). Arkshine and gerhard investigate, with gerhard identifying a potential bug in the backup scheduling logic. The daily backup job runs at 00:00 but skips execution due to a condition that may not be met for daily backups, and jitter in the backup start time further complicates the timing. gerhard concludes this is a bug that should be fixed.

1

Hey guys,

these are my settings for backup at the moment:

The image displays settings for automatic backups, including options to set maximum backups and days to keep, as well as enabling backups and specifying a backup frequency, with a focus on the "Remove older backups" setting with a value of 14 days. (Captioned by AI)
The image displays settings for automatic backups, including options to set maximum backups and days to keep, as well as enabling backups and specifying a backup frequency, with a focus on the "Remove older backups" setting with a value of 14 days. (Captioned by AI)1145×374 25.8 KB

Here you see that actual backups made (It´s a new board, thus the small backups :slight_smile: )

The image displays a table of file names, sizes, and download buttons, all shown in a dark interface format. (Captioned by AI)
The image displays a table of file names, sizes, and download buttons, all shown in a dark interface format. (Captioned by AI)1427×352 25.4 KB

I configured, as you can see, backup frequency “1”, but the backups are made every second day.
Is it just, that I´m too dumb to understand it, or is it something else ?

I want daily backups! :- :joy:

Thanks and Cheers,

Julian

2

Hey, what is your backup_time_of_day value? Also is it local or S3 storage?

3

it´s 3:30 and it´s local because of this

Thanks :slight_smile:

4

I see, thanks! I was maybe thinking of some timing issue, but it doesn’t look this way.
I will try to reproduce it. Let’s hope someone else has a better idea of what’s happening.

5

It´s still the same here.

Backup Frequenceny is at “1”
But backups are occuring only every second day :frowning:

6

Could you enter your Docker container, start the rails console, …

./launcher enter app
rails c

… run the following two lines of code …

BackupRestore::BackupStore.create.latest_file

Time.now.utc

… and post the output, please?

7

Hey @gerhard,

here you are :slight_smile:

rails c
[1] pry(main)> BackupRestore::BackupStore.create.latest_file
=> #<BackupFile:0x00007ff6c5ed79e8 @filename="community-2025-03-04-033214-v20250220090521.tar.gz", @last_modified=2025-03-04 02:32:19.790859841 UTC, @size=43521649, @source=nil>
[2] pry(main)> Time.now.utc
=> 2025-03-04 08:07:17.128857559 UTC

Last Backups:

The image displays a list of five tar.gz files with download buttons next to them, each ranging in size from 38.3 MB to 41.5 MB. (Captioned by AI)
The image displays a list of five tar.gz files with download buttons next to them, each ranging in size from 38.3 MB to 41.5 MB. (Captioned by AI)1371×303 25.2 KB

The setting is still:

The image shows a settings window displaying a field labeled "Backup frequency" with the input "1" and an accompanying tooltip explaining the setting. (Captioned by AI)

Cheers WS

8

Thanks, okay, I see the issues.

There’s a daily background job that runs at 00:00 and enqueues a backup job for a later time. But this condition most likely isn’t true for daily backups, so it’s skipped.

And the fact that we are adding some jitter to the actual start of the backup doesn’t help either.

I consider this a bug that we should fix.