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Yandex Cloud Functions

Viewing trigger monitoring charts in Cloud Functions

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

The chart update period is 15 seconds.

Viewing monitoring charts

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

  2. Select Cloud Functions.

  3. Select a trigger to view its monitoring charts.

  4. Go to the Monitoring tab.

  5. The following charts open on the page:

    • Request latency: The average time it takes a trigger to process a request.
    • Read events: The number of events causing a trigger to fire.
    • Function access errors: The number of access errors when calling a function.
    • Function call errors: The number of errors when calling a function.
    • DLQ access errors: The number of errors when accessing the Dead Letter Queue.
    • Send to DLQ errors: The number of errors when sending messages to the Dead Letter Queue.

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

Custom metrics

To proceed to working with metrics, dashboards, and alerts, in Yandex Monitoring, in the upper-right corner, click Open in Monitoring.

Metric name Units Entity type Explanations
serverless.triggers.
inflight		 Invocations
  • request: Function calls.
 Number of concurrent function invocations.
serverless.triggers.
error_per_second		 Errors per second
  • request: Function calls.
  • message_queue: Accesses the Yandex Message Queue.
  • dlq: Accesses the Dead Letter Queue.
 Error frequency when processing function invocations.
serverless.triggers.
access_error_per_second		 Errors per second
  • request: Function calls.
  • message_queue: Accesses the Yandex Message Queue.
  • dlq: Accesses the Dead Letter Queue.
 Access error frequency when processing function invocations.
serverless.triggers.
retry_per_second		 Calls per second
  • request: Function calls.
 The frequency of repeat function invocations in the event of an error.
serverless.triggers.
read_events_per_second		 Events per second
  • incoming: Events causing any trigger to fire except for a Yandex Message Queue.
  • message_queue: Events causing the trigger to fire for Yandex Message Queue.
 Frequency of events causing a trigger to fire.
serverless.triggers.
execution_time_milliseconds		 Calls per second
  • request: Function calls.
 Function invocation frequency distribution histogram by request processing time in milliseconds. Request processing time intervals are shown in the bin label.

Custom metrics labels

Label name Possible values Explanations
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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