Synthetic Check

Configuration

Initially you need to configure the measured endpoints in the Instana Agent <agent_install_dir>/etc/instana/configuration.yml. The following options are available for monitoring configuration:

com.instana.plugin.ping:
  endpoints:
    LABEL_1:
      type: 'icmp'
      target: '172.16.0.42'
    LABEL_2:
      type: 'http'
      target: 'http://172.16.0.42:80/health'
  poll_rate: 10  # Value is in seconds. Default is 10 seconds. Valid range: 1 to 3600 seconds.

Synthetic checks are executed by the Instana Agent every 10 seconds by default. The endpoints are listed in the Comparison table when Ping is selected from the Table Content dropdown menu.

Sensor (Data Collection)

Tracked Configuration

Endpoint label: As specified in the configuration.
Endpoint type: icmp or http.
Target
Poll rate: Specifies the duration in seconds. The default is 10 seconds. Valid values range 1–3600 seconds.

Metrics

Duration: the measured time for the request to return

Health Signatures

For each sensor, there is a curated knowledgebase of health signatures that are evaluated continuously against the incoming metrics and are used to raise issues or incidents depending on user impact.

Built-in events trigger issues or incidents based on failing health signatures on entities, and custom events trigger issues or incidents based on the thresholds of an individual metric of any given entity.

For information about built-in events for the Synthetic Check sensor, see the Built-in events reference.