Issue Automated backup failure

[Matthieu Billon Lanfrey]

This morning i get a message saying there had been a problem during nightly backup on one of my server hosted by OVH.

The mail told me :

Following error happen during automated backup : cannot concatenate 'str' and 'list' objects

With little exploration in /var/log/plesk/PMM/backup-2021-03-18-01-16-03-890/ i can found :

- In pmmcli.log :

[...]
[2021-03-18 01:16:08.918|2978] INFO: Execution of <subprocess[2979] '/usr/bin/perl /usr/local/psa/admin/bin/plesk_agent_manager server --get-size --ftp --output-file=ftp://[email protected]/ --incremental --session-path=/usr/local/psa/PMM/sessions/2021-03-18-011603.890'> finished successfully.
[2021-03-18 01:16:08.950|2978] CRITICAL: Runtime error in pmmcli:
<type 'exceptions.TypeError'> cannot concatenate 'str' and 'list' objects
Traceback (most recent call last):
File "/usr/local/psa/admin/share/pmmcli/pmmcli.py", line 2560, in main
data_action_response, errcode_response, error_message = actions.get(sys.argv[1][2:])(parameters)
File "/usr/local/psa/admin/share/pmmcli/pmmcli.py", line 2455, in make_dump
return ActionRunner(MakeDumpAction, backup_task_description, None).doActivity()
File "/usr/local/psa/admin/share/pmmcli/pmmcli.py", line 207, in doActivity
result = self.processor.doActivity()
File "/usr/local/psa/admin/share/pmmcli/pmmcli.py", line 1601, in doActivity
_logger.warning('Unable to get backup size: Backup utility reported :\n' + proc_output)
TypeError: cannot concatenate 'str' and 'list' objects
[...]

- In backup.log :

[...]
[2021-03-18 01:16:07.732| 2995] INFO: Repository 'ftp://ftpbackupdomain.tld/': Initialized
[2021-03-18 01:16:07.732| 2995] INFO: Ftp init url ftp://ftpbackupdomain.tld/
[2021-03-18 01:16:07.859| 2995] INFO: TransportError[9a62d718-3a5d-4578-89e4-b2d6b441e241]: Transport error: unable to list directory: Curl error: (8) Weird server reply: Last FTP request: LIST -a Last FTP response: 226 65 matches total [common/plesk-utils/PMM/repository-transport/transport.cpp:1172]
virtual void plesk::tRepositoryFtp::ListDirEx(const string&, std::__cxx11::list<plesk::FileInfo>&, bool)
[2021-03-18 01:16:07.859| 2995] INFO: pmm-ras finished. Exit code: 126
[2979]: 2021-03-18 01:16:07.863 DEBUG Get backup size for selected objects
[...]

So it seems that the backup get interupted because of a weird response of the ftp server (i hope it won't do that very often).

But my question is why the local version has been aborted too ?

For better security i choose to backup localy & remotely and made also an other copy in our office (with rsync) of the /var/psa/dump/ directory, but if there is no local backup i miss 2 opportunities to have a usable copy...

Thanks with any help i can get and sorry for my english as it's not my natural language ! ^^

 

[Bitpalast]

Please try the solution described in this article:

Unable to create a Plesk scheduled backup to a remote FTP storage: Curl error: Unable to resume an interrupted download: (28) Timeout was reached

Applicable to: Plesk for Linux Symptoms In an attempt to create a Plesk scheduled backup to a remote FTP server the process fails with the error: PLESK_ERROR: pmm-ras failed (Error code = 1):S...

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