DGE Global Configuration

There are a few global DGE settings that you can change by navigating to Superuser > Global Config > Data Gathering Engine.

• Suspend Test Execution For Offline Devices
• Thread Pool Size For Script Monitor
• Select OID Grouping - Ensures that all SNMP tests for the same device are scheduled together and therefore placed in the same batch. This can be useful for special cases, but this option should not be enabled unless a thorough analysis of your environment has been performed.

  

• Flap Prevention - Normally when a test or device going into warning or critical state, this state is shown immediately on the display. You can set the notification to be done immediately or after a few polling cycles. You can set the display state to be transient, instead of immediately displaying Warning or Critical to prevent flapping tests from displaying on the screen. This can be done on a global "per DGE" basis, or on a per device or per test basis. The global setting for each DGE is configured on this page, and you can override this for each device or test on the configuration page for each device or test also.

  A sample use case is to set the global default to be 2 polling cycles, and then for all the critical devices and tests, set the Flap Prevention value to 0 so that they show up on the screen right away. Note that this is only a display parameter, and does not impact reports and actions.

• Allow Alarm Acknowledgment Through Email Notification - If checked a URL link is included in email notifications. Clicking the link in an email notification acknowledges the event.
• Web Server Public URL (for alarm acknowledgment) - Enter a URL that is publicly available. The acknowledgment link is constructed from this public URL. Clicking the link in an email notification acknowledges the event.
• Send Alert Notification for Offline DGE/DGE Extension (leave empty to disable) - Enter an email address that alerts administrators when a DGE extension has not communicated with the BVE for a period of time.

  Each DGEx sends a periodic heartbeat to the BVE, as shown in the Superuser > Health view.

  • By default a heartbeat is sent every 2 minutes.
  • If the BVE does not receive a heartbeat for 5 minutes the DGEx enters a warning state.
  • If the BVE does not receive a heartbeat for 15 minutes the DGEx enters a critical state.