Track back backup warnings

[Webbenny]

If a backup completed with a warning it's not easy to track back when the failure happened.

WARNING:      (hosting object 'mywebspace.xxx')      Not all the data was backed up into /var/lib/psa/dumps/clients/mywebpace/domains/mywebspace.xxx
successfully. For security reasons, backing up is performed on behalf of subscription's system user. This system user has no read access to:
/var/www/vhosts/mywebspace.xxx/httpdocs/wp-includes/js/
So it was not backed up. All other data was backed up successfully. To fix this issue you may grant access read/write to the file or directory for system user "myswebpace" or "apache".

My system makes automatic backups every day, so which backup was it and when? Or is the cause already fixed? So you have to track this by hand. You can download the error log. The name of the file is task-<number>.log (e.g. task-12433.log). With the task number you can grep for the time when the error occoured:

root@mywebspace:/opt/psa/PMM/logs# cat pmmcli.log | grep -m 1 "12433"
[2014-12-01 01:56:02.066|12432] INFO: Executing asynchronously <subprocess[12433] 'nice --adjustment=10 /usr/bin/perl /opt/psa/admin/bin/plesk_agent_manager server --owner-uid=b0847026-b7b9-4d6b-bcd5-6f50d9ffabb1 --owner-type=server --dump-rotation=7 --backup-profile-name=mywebspace --session-path=/opt/psa/PMM/sessions/2014-12-01-035602.579 --output-file=
ftps://myuser@ftp.mybackupspace.xxx/users/myserver/mywebspace/ --ftp-passive-mode'>

The first part is the date and time when the backup has failed.

@Plesk Support: It would be nice if the warning/error notice contains the date and time, to make sure the error is not already fixed/old. Or is there an easy way to get time and date for backup warnings?

Best regards, Benjamin

mywebspace.xxx is a example domain name.