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Viewing trigger monitoring charts in Yandex API Gateway

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Updated at February 7, 2025

You can monitor triggers using the monitoring tools in the management console. These tools display diagnostic information as charts. Metric values are collected and charts are displayed by Monitoring.

The chart update period is 15 seconds.

Viewing monitoring charts

  1. In the management console, select the folder containing your trigger.

  2. Open API Gateway.

  3. Select a trigger to view its monitoring charts.

  4. Go to the Monitoring tab.

  5. The following charts will open on the page:

    • Request latency: Average time it takes a trigger to process a request.
    • Read events: Number of events that have set off a trigger.
    • Function access errors: Number of access errors when sending messages to WebSocket connections.
    • Function call errors: Number of errors when sending messages to WebSocket connections.

You can select the time period to display information for: hour, day, week, month, or a custom interval.

Custom metrics

To get started with metrics, dashboards, and alerts in Monitoring, click Open in Monitoring in the top-right corner.

Metric name Units entity type Comment
serverless.triggers.
inflight		 Invocations
  • request: Message distribution.
 Number of concurrent message distributions.
serverless.triggers.
error_per_second		 Errors per second
  • request: Message distribution.
 Frequency of message distribution errors.
serverless.triggers.
access_error_per_second		 Errors per second
  • request: Message distribution.
 Frequency of access errors during message distribution.
serverless.triggers.
read_events_per_second		 Events per second
  • incoming: Events that have set off any trigger other than a trigger for Yandex Message Queue.
  • message_queue: Events that have set off a trigger for Yandex Message Queue.
 Frequency of events causing a trigger to fire.
serverless.triggers.
execution_time_milliseconds		 Invocations per second
  • request: Message distribution.
 Distribution histogram of messaging frequency versus request processing time in milliseconds. Request processing time intervals are provided in the bin label.
serverless.triggers.
event_size_exceeded_per_second		 Errors per second
  • incoming: Events that have set off any trigger other than a trigger for Yandex Message Queue.
 Frequency of errors on exceeding the message size limit.

Custom metrics labels

Label name Possible values Comment
trigger Trigger name The label contains the name of the trigger that the metric values refer to.
id Trigger ID The label contains the ID of the trigger the metric values refer to.
type entity type The label contains the entity type the metric values refer to.
bin Interval of histogram values For metrics represented by a histogram, the label value describes the interval of the measured value during which the event occurred.
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