FTP backup is created incorrectly if several APS use the same database: boost::filesystem::file_size: No such file or directory

Symptoms

• Full backups are set to be stored on FTP storage in Plesk > Tools & Settings > Backup Manager;

• There are backups in local storage in Plesk > Tools & Settings > Backup Manager;

• There are backup files left in /var/www/psa/dumps/clients;

• The following error can be found in/usr/local/psa/PMM/logs/backup-<datetime>/backup.log:

  CONFIG_TEXT: INFO: boost::filesystem::file_size: No such file or directory: "/usr/local/psa/PMM/tmp/pmm-de-tmp-repo-6TJGee/clients/exaple.com/domains/example.com/databases/example/backup-pv22s37_1811151802.tgz"
  [2018-11-15 22:00:37.381|29034] INFO: pmm-ras finished. Exit code: 1

Cause

This is a Plesk bug PPPM-9656 that will be fixed in future product updates.

Resolution

For workaround implement the custom fix:

1. Log in via SSH;

2. Backup /usr/local/psa/PMM/agents/shared/Storage/Storage.pm file:

   # cp /usr/local/psa/PMM/agents/shared/Storage/Storage.pm{,.bkp}

3. Download the custom fix and unpack it to /usr/local/psa/PMM/agents/shared/Storage/ directory:

   # wget https://support.plesk.com/hc/en-us/article_attachments/360019382613/Storage-PP-17.5.tgz
   # tar -xzf ./Storage-PP-17.5.tgz -C /usr/local/psa/PMM/agents/shared/Storage/