How can I control the size of the statistics database?

AMPS supports an action to help manage the size of the statistics database.

• amps-action-do-truncate-statistics removes statistics that are older than a certain timeframe

Actions are configured in the Actions section of your AMPS configuration. You can set up actions to run on a timer, at a specific time of day, at a specific time of day on a specific day of the week, when AMPS starts up or shuts down, or in response to a Linux signal. For example, you could configure the actions like this to remove statistics older than one day and shrink the files, with the action running every day at 12:30 AM.

<Actions>
  <Action>
    <On>
      <Module>amps-action-on-schedule</Module>
      <Options>
        <Every>00:30</Every>
        <Name>Nightly Statistics Maintenance</Name>
      </Options>
    </On>
    <Do>
       <Module>amps-action-do-truncate-statistics</Module>
       <Options>
          <Age>1d</Age>
       </Options>
    </Do>
  </Action>
</Actions>

The full syntax for actions is described in the AMPS Configuration Guide.