Article ID: 114307, created on Jul 6, 2012, last review on Jul 25, 2016

  • Applies to:
  • Business Automation 5.4
  • Plesk 12.0 for Linux
  • Plesk 11.0 for Linux
  • Plesk 11.5 for Linux
  • Plesk 10.3 for Linux/Unix


The Health Monitor displays a value of zero for CPU, memory, etc or shows incorrect data


  1. Corrupted old Health Monitor statistics.

  2. Unfinished installation and initial configuration of Health Monitor.


The first possible solution is to clean up the old Health Monitor statistics:

  1. Stop the sw-collectd service:

    # /etc/init.d/sw-collectd stop
  2. Retrieve the values for the "BaseDir" and "Hostname" parameters from the Health Monitor configuration file:

    # egrep "BaseDir|Hostname" /etc/sw-collectd/collectd.conf
    BaseDir "/usr/local/psa/var/health/data"
    Hostname localhost
  3. Delete the existing statistics. The Health Monitor statistics storage location is assembled from "BaseDir" + "Hostname":

    # rm -rf /usr/local/psa/var/health/data/localhost/*
  4. Start the sw-collectd service:

    # /etc/init.d/sw-collectd start
  5. Check the Health Monitor statistics in the Server Administration Panel.

If the previous steps did not resolve the issue, please try next solution.

The second solution is to finish the initial installation of Health Monitor:

  1. Stop the sw-collectd service:

    # /etc/init.d/sw-collectd stop
  2. Execute the configuring script:

    # /usr/local/psa/bin/sw-engine-pleskrun /usr/local/psa/admin/plib/scripts/setup-health-monitor.php
    Operation completed successfully
  3. Start the sw-collectd service:

    # /etc/init.d/sw-collectd start

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