There was issue PPPM-11825 in Plesk Obsidian < 18.0.26.
If workarounds above do not help I recommend to enable verbose logging in /usr/local/psa/admin/conf/panel.ini
and in /usr/local/psa/admin/share/pmmcli/pmmcli-rc
and try to find errors in /var/log/plesk/PMM/backup-<date_time>/backup.log especially in lines with text "Curl output:".
[2020-04-26 01:28:26.445|15915] INFO: Curl error: (19) FTP: couldn't retrieve (RETR failed) the specified file: Last FTP request: RETR backup_2004170128_2004250129.tar: Last FTP response: 425 Unable to build data connection: Operation already in progress
[2020-04-26 01:28:40.671|15935] INFO: Curl error: (19) FTP: couldn't retrieve (RETR failed) the specified file: Last FTP request: LIST Last FTP response: 425 Unable to build data connection: Operation already in progress: Please, try to use passive mode
[2020-04-26 01:28:49.720|15942] INFO: Curl error: (19) FTP: couldn't retrieve (RETR failed) the specified file: Last FTP request: LIST Last FTP response: 425 Unable to build data connection: Operation already in progress: Please, try to use passive mode
[2020-04-26 01:33:55.639|15947] INFO: Curl error: (19) FTP: couldn't retrieve (RETR failed) the specified file: Last FTP request: LIST Last FTP response: 425 Unable to build data connection: Operation already in progress: Please, try to use passive mode
[2020-04-26 01:34:01.933|22440] INFO: Curl error: (19) FTP: couldn't retrieve (RETR failed) the specified file: Last FTP request: LIST Last FTP response: 425 Unable to build data connection: Operation already in progress: Please, try to use passive mode
@DenisG
Here the log information
ag --log -C resume
backup.log
3098-[2020-04-25 03:03:12.254|27856] INFO: Curl output: > SIZE backup_xxxx_2004250300.tar
3099-[2020-04-25 03:03:12.274|27856] INFO: Curl output: < 213 6684302336 3100:[2020-04-25 03:03:12.274|27856] INFO: Curl output: * Instructs server to resume from offset 6683253760 3101-[2020-04-25 03:03:12.274|27856] INFO: Curl output: > REST 66832537603102-[2020-04-25 03:03:12.293|27856] INFO: Curl output: < 350 Restarting at 6683253760. Send STORE or RETRIEVE to initiate transfer
I hope it help to get this new error resolved
You need to looking for lines with 'Curl error' strings.
curl -v -s -S --ftp-pasv --ssl -k -u uNNNNNN -T test.file 'ftp://uNNNNNN.your-storagebox.de/dumps/'
...
< 450 Transfer aborted. Link to file server lost
* server did not report OK, got 450
* Connection #0 to host u230962.your-storagebox.de left intact
curl: (18) server did not report OK, got 450
I have to backup 400+GB to FTP every day, that is inefficient if some subscriptions did not change at all in size, why should Plesk have a need to backup everything?I am running my server with Ubuntu 18.04. Since the Update to Plesk Obsidian 18.0.26 the incremental backup to my FTPS server fails with a message like this:
Code:Error: Export error: Size of volume backup_2004190206.tar 2144821247 does not match expected one 2146435072. The remote backup may not be restored. Error: Unable to validate the remote backup. It may not be restored. Error: Unable to extract dump header
Files are stored successfully on the remote backup server. I am using the following settings:
- Create a multivolume backup, volume size (MB) of 2047 MB
- Stored in FTP(S) only.
- Exluding Log