Backblaze B2 failures : net/http: TLS handshake timeout

[groupecpt]

Every day we have at least one backup failing due to intermittent/transient TLS handshake errors with the Backblaze B2 storage. The backups will succeed on next attempt. This is observed from many servers using different ISPs; we believe it be to random occurrences due to the load on the server side which we have no control over.

Retries should be attempted for these connection/handshake errors.

From the logs:

Back up /folder@localhost to storage b2-storage, status: Failed, log file: backup-20230217-200006.log

Running backup command from /.duplicacy-web/repositories/localhost/1 to back up /folder
Options: [-log backup -storage b2-storage -threads 4 -stats]
2023-02-17 20:00:06.541 INFO REPOSITORY_SET Repository set to /folder
2023-02-17 20:00:06.541 INFO STORAGE_SET Storage set to b2://storage
2023-02-17 20:00:16.547 ERROR STORAGE_CREATE Failed to load the Backblaze B2 storage at b2://storage: Post "https://api.backblazeb2.com/b2api/v1/b2_authorize_account": net/http: TLS handshake timeout Failed to load the Backblaze B2 storage at b2://storage: Post "https://api.backblazeb2.com/b2api/v1/b2_authorize_account": net/http: TLS handshake timeout