Old backup session files are not removed from /usr/local/psa/PMM/sessions

Symptoms

• A root partition fills with orphaned backup session files
• Backup session files older than 30 days are not removed from /usr/local/psa/PMM/sessions. 

• /usr/local/psa/admin/share/pmmcli/pmmcli-rc has the DAYS_TO_KEEP_SESSIONS set to 30

  # grep DAYS_TO_KEEP_SESSIO /usr/local/psa/admin/share/pmmcli/pmmcli-rc
  DAYS_TO_KEEP_SESSIONS 30

Cause

Plesk product bug #PPPM-8168 that has been fixed in Plesk Onyx 17.5.3 MU #44

Resolution

Upgrade to the newest Plesk.

If the upgrade is not possible use the one of the workarounds below:

For Plesk Onyx 17.0 only

1. Connect to the server via SSH

2. Execute the following:

   # mv /usr/local/psa/admin/share/pmmcli/pmmcli_daemon_actions.py{,.orig}
   # wget https://plesk.zendesk.com/hc/article_attachments/360002630294/pmmcli_daemon_actions.tar
   # tar xf pmmcli_daemon_actions.tar -C /usr/local/psa/admin/share/pmmcli/

For other Plesk versions the following workaround can be used:

• Find stale backup session files older than number of days defined in pmmcli-rc and delete them

  # find /usr/local/psa/PMM/sessions/ -maxdepth 1 -type d -mtime +$(grep DAYS_TO_KEEP_SESSIONS /usr/local/psa/admin/share/pmmcli/pmmcli-rc | cut -f2 -d ' ') | xargs rm -rf