Yandex Monitoring metric reference

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Updated at April 28, 2025

HTTP API metrics
Service metrics

This section describes Message Queue metrics delivered to Monitoring.

The name label contains the metric name.

All Message Queue metrics share the service=message-queue label.

HTTP API metrics

Metric name Type, units	Description Labels
`api.http.errors_count_per_second` `DGAUGE`, errors per second	Number of query execution errors per second. Labels: `method` containing the Yandex Message Queue API method called.
`api.http.request_duration_milliseconds` `DGAUGE`, milliseconds	Query execution duration. Labels: `method` containing the Yandex Message Queue API method called.
`api.http.requests_count_per_second` `DGAUGE`, requests per second	Number of processed requests per second. Labels: `method` containing the Yandex Message Queue API method called.

Service metrics

Metric name Type, units	Description Labels
`queue.messages.client_processing_duration_milliseconds` `DGAUGE`, milliseconds	Message processing duration on the receiving side
`queue.messages.deduplicated_count_per_second` `DGAUGE`, messages per second	Message deduplication frequency shows the number of messages processed a certain number of times during the above-mentioned period, e.g. how many messages were processed once, how many were processed twice, etc. This metric is used to detect redundant processing of duplicate messages.
`queue.messages.deleted_count_per_second` `DGAUGE`, messages per second	Message dequeuing frequency
`queue.messages.empty_receive_attempts_count_per_second` `DGAUGE`, attempts per second	Number of detected attempts to obtain an empty message per second
`queue.messages.inflight_count` `DGAUGE`, count	Number of in-flight messages, i.e., messages received by consumers but not dequeued (that are still within the visibility timeout window).
`queue.messages.oldest_age_milliseconds` `DGAUGE`, milliseconds	Age of oldest message in the queue. The metric name is deprecated, and the `milliseconds` substring does not align with the current units of measure. Currently, the metric is measured in seconds (`s`).
`queue.messages.purged_count_per_second` `DGAUGE`, messages per second	Frequency of message deletion using the PurgeQueue method
`queue.messages.receive_attempts_count_rate` `DGAUGE`, count	Number of attempts to receive messages from the queue
`queue.messages.received_bytes_per_second` `DGAUGE`, bytes per second	Total size of messages received from the queue per second
`queue.messages.received_count_per_second` `DGAUGE`, messages per second	Number of messages received from the queue per second
`queue.messages.request_timeouts_count_per_second` `DGAUGE`, errors per second	Number of `ReceiveMessage` request errors
`queue.messages.reside_duration_milliseconds` `DGAUGE`, milliseconds	Message processing time in the queue
`queue.messages.sent_bytes_per_second` `DGAUGE`, bytes per second	Total size of messages enqueued per second
`queue.messages.sent_count_per_second` `DGAUGE`, messages per second	Number of messages enqueued per second
`queue.messages.stored_count` `DGAUGE`, count	Number of messages currently in the queue

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