Hello,
backup failed due to insufficient space on ftp.
Before the update to 17.8, I would in this case get a mail with the error:
Now, I can see this error only in the backup manager at /smb/backup/list/domainId/1 listed as "some minor issues". I think it's a pretty major issue if the backup can't be uploaded to backup storage. Also, both backups are listed as two tasks, of which one is marked as successful:
Now after two days, I am getting error mails from Plesk:
The old plesk version 17.0 had the same problem back in 2017, but it was eventually fixed so plesk would clean up those leftover files from the previous attempt on a new backup run. Why was this behavior dropped in 17.8?
backup failed due to insufficient space on ftp.
Before the update to 17.8, I would in this case get a mail with the error:
The following error occurred during the scheduled backup process:
Runtime error: Unable to upload the backup to the FTP storage: Curl error: Unable to resume an interrupted upload: (55) Failed sending data to the peer: Last FTP request: APPE backup_domain.com_1909120321.tar: Last FTP response: 150 Opening BINARY mode data connection for backup_domain.com_1909120321.tar: Connection to the FTP server has lost
Runtime error: Unable to upload the backup to the FTP storage: Curl error: Unable to resume an interrupted upload: (55) Failed sending data to the peer: Last FTP request: APPE backup_domain.com_1909120321.tar: Last FTP response: 150 Opening BINARY mode data connection for backup_domain.com_1909120321.tar: Connection to the FTP server has lost
Now, I can see this error only in the backup manager at /smb/backup/list/domainId/1 listed as "some minor issues". I think it's a pretty major issue if the backup can't be uploaded to backup storage. Also, both backups are listed as two tasks, of which one is marked as successful:

Now after two days, I am getting error mails from Plesk:
The following error occurred during the scheduled backup process:
Not enough free disk space to backup selected objects. At least 123298.04 MBytes free disk space is required.
These are NOT shown in the backup manager, and the cause is that both backups are still lying around in plesk's backup building location /var/lib/psa/dumps/domains/domain.com as the individual components backup_domainmail_1910180321.tgz, backup_user-data_1910180321.tgz, etc.Not enough free disk space to backup selected objects. At least 123298.04 MBytes free disk space is required.
The old plesk version 17.0 had the same problem back in 2017, but it was eventually fixed so plesk would clean up those leftover files from the previous attempt on a new backup run. Why was this behavior dropped in 17.8?