Skip to main content

Telemetry

Overview​

An Edge Node's telemetry comprises the gathering and analysis of data from the Node to Barbara Panel. This data is used to supervise the Node's state, to preempt and solve problems and optimize the Node's performance and usage.

The Telemetry Card allows you to view the last telemetry received value and analyze information regarding not only the Node but any applications running on it too.

See also...

To view the temporary evolution of any of the telemetry parameters, you can check the Analytics card.

Telemetry card UI​

Telemetry card UI

Telemetry card UI

Node Metrics​

The following metrics, displayed in the Telemetry card, all refer to the Edge Node's health and state:

  1. Last Update: Timestamp of the last telemetry received.
  2. Node Up Since: Timestamp of the last time the Node was turned on.
  3. Interval: Form that allows configuring the time period or frequency of telemetries sent from the Node (value measured in seconds).
  4. Temperature: Temperature of the Edge Node's CPU.
  5. System Load: This metric measures the Edge Node's workload. It's calculated as the average number of processes in the run queue over a period of time. A high system load can indicate that the system is overloaded and may be struggling to keep up.
note

Factors that can contribute to a high system load include:

  • Number of processes (applications) that are running on the Node.
  • Amount of resources that each process is using.
  • Speed of the CPU.

If the system load on your Edge Node is high, you can reduce it by:

  • Closing unused processes.
  • Optimizing performance-intensive processes.
  • Adding more resources to the hardware.
  1. RAM: Amount of RAM utilized by the Node, due to the applications installed and the total system.
  2. Disk: Amount of space used on the Edge Node's disk.

Processes​

The bottom half of the Telemetry card displays information related to the different processes running on the system via the applications installed.

note

Data only appears on this segment of the Telemetry card when an application has been deployed to the Node.

For each process running on the Node, you can monitor the following metrics:

  1. CPU: Percentage of CPU utilized by the process.
  2. RAM: Quantity of RAM memory used up by the process.
  3. Files: Number of files stored on the Node that are opened by the system while the process is running.