Error uploading backup to B2

Support
,
1

I’m facing issues with backing up my Discourse instance, the instance is setup to upload to Backblaze’s B2.

Error log:

Making sure archive does not already exist...
Creating empty archive...
Archiving data dump...
Archiving uploads...
Skipping uploads stored on S3.
Removing tmp '/var/www/discourse/tmp/backups/default/2026-01-16-151337' directory...
Gzipping archive, this may take a while...
Uploading archive...
EXCEPTION: failed to abort multipart upload: SSL_read: unexpected eof while reading. Multipart upload failed: Checksum Type mismatch occurred, expected checksum type: CRC32, actual checksum type: null; Checksum Type mismatch occurred, expected checksum type: CRC32, actual checksum type: null; Checksum Type mismatch occurred, expected checksum type: CRC32, actual checksum type: null; Checksum Type mismatch occurred, expected checksum type: CRC32, actual checksum type: null; Checksum Type mismatch occurred, expected checksum type: CRC32, actual checksum type: null; Checksum Type mismatch occurred, expected checksum type: CRC32, actual checksum type: null; Checksum Type mismatch occurred, expected checksum type: CRC32, actual checksum type: null; Checksum Type mismatch occurred, expected checksum type: CRC32, actual checksum type: null; Checksum Type mismatch occurred, expected checksum type: CRC32, actual checksum type: null; Checksum Type mismatch occurred, expected checksum type: CRC32, actual checksum type: null
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/aws-sdk-s3-1.182.0/lib/aws-sdk-s3/multipart_file_uploader.rb:103:in `rescue in abort_upload'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/aws-sdk-s3-1.182.0/lib/aws-sdk-s3/multipart_file_uploader.rb:90:in `abort_upload'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/aws-sdk-s3-1.182.0/lib/aws-sdk-s3/multipart_file_uploader.rb:86:in `upload_parts'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/aws-sdk-s3-1.182.0/lib/aws-sdk-s3/multipart_file_uploader.rb:59:in `upload'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/aws-sdk-s3-1.182.0/lib/aws-sdk-s3/file_uploader.rb:42:in `block in upload'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/aws-sdk-core-3.227.0/lib/aws-sdk-core/plugins/user_agent.rb:90:in `metric'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/aws-sdk-s3-1.182.0/lib/aws-sdk-s3/file_uploader.rb:40:in `upload'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/aws-sdk-s3-1.182.0/lib/aws-sdk-s3/customizations/object.rb:477:in `block in upload_file'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/aws-sdk-core-3.227.0/lib/aws-sdk-core/plugins/user_agent.rb:90:in `metric'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/aws-sdk-s3-1.182.0/lib/aws-sdk-s3/customizations/object.rb:476:in `upload_file'
/var/www/discourse/lib/backup_restore/s3_backup_store.rb:48:in `upload_file'
/var/www/discourse/lib/backup_restore/backuper.rb:351:in `upload_archive'
/var/www/discourse/lib/backup_restore/backuper.rb:41:in `run'
script/discourse:115:in `backup'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/thor-1.4.0/lib/thor/command.rb:28:in `run'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/thor-1.4.0/lib/thor/invocation.rb:127:in `invoke_command'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/thor-1.4.0/lib/thor.rb:538:in `dispatch'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/thor-1.4.0/lib/thor/base.rb:584:in `start'
script/discourse:397:in `<top (required)>'
/usr/local/lib/ruby/gems/3.3.0/gems/bundler-2.6.4/lib/bundler/cli/exec.rb:59:in `load'
/usr/local/lib/ruby/gems/3.3.0/gems/bundler-2.6.4/lib/bundler/cli/exec.rb:59:in `kernel_load'
/usr/local/lib/ruby/gems/3.3.0/gems/bundler-2.6.4/lib/bundler/cli/exec.rb:23:in `run'
/usr/local/lib/ruby/gems/3.3.0/gems/bundler-2.6.4/lib/bundler/cli.rb:452:in `exec'
/usr/local/lib/ruby/gems/3.3.0/gems/bundler-2.6.4/lib/bundler/vendor/thor/lib/thor/command.rb:28:in `run'
/usr/local/lib/ruby/gems/3.3.0/gems/bundler-2.6.4/lib/bundler/vendor/thor/lib/thor/invocation.rb:127:in `invoke_command'
/usr/local/lib/ruby/gems/3.3.0/gems/bundler-2.6.4/lib/bundler/vendor/thor/lib/thor.rb:538:in `dispatch'
/usr/local/lib/ruby/gems/3.3.0/gems/bundler-2.6.4/lib/bundler/cli.rb:35:in `dispatch'
/usr/local/lib/ruby/gems/3.3.0/gems/bundler-2.6.4/lib/bundler/vendor/thor/lib/thor/base.rb:584:in `start'
/usr/local/lib/ruby/gems/3.3.0/gems/bundler-2.6.4/lib/bundler/cli.rb:29:in `start'
/usr/local/lib/ruby/gems/3.3.0/gems/bundler-2.6.4/exe/bundle:28:in `block in <top (required)>'
/usr/local/lib/ruby/gems/3.3.0/gems/bundler-2.6.4/lib/bundler/friendly_errors.rb:117:in `with_friendly_errors'
/usr/local/lib/ruby/gems/3.3.0/gems/bundler-2.6.4/exe/bundle:20:in `<top (required)>'
/usr/local/bin/bundle:25:in `load'
/usr/local/bin/bundle:25:in `<main>'
Deleting old backups...
Cleaning stuff up...
Removing archive from local storage...
Removing '.tar' leftovers...
Marking backup as finished...
Notifying 'system' of the end of the backup...
Finished!
[FAILED]
2

Has this worked previously?

3

Yes, it worked until ~mid-December.

4

Presuming it stopped working after an upgrade, do you know the version where it was working (knowing the filename of the last successful backup would help) and the version you’re at now?

5

I’ll try to find the old files, I was doing some cleanup and deleted before checking :man_facepalming:t2:.

I know this one `v20251209012613` was already failing. Will try to recover the older files to see when it stopped working.