Knative metrics

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Cloud Monitoring supports the Knative metrics listed on this page.

  • For a general explanation of the entries in the tables, including information about values like DELTA and GAUGE, see Value types and metric kinds.

  • For information about statements of the form “Sampled every x seconds” and “After sampling, data is not visible for up to y seconds”, see Additional information: metadata.

  • For a set of complete, current lists of supported metric types, see Metrics list.

Knative metrics

Metrics from Knative.

The following list was last generated at 2023-03-23 14:46:33 UTC. For more information about this process, see About the lists.

knative

Metrics from Knative components. Launch stages of these metrics: ALPHA BETA

The "metric type" strings in this table must be prefixed with knative.dev/. That prefix has been omitted from the entries in the table.

Metric type Launch stage
Display name
Kind, Type, Unit
Monitored resources		 Description
Labels
eventing/broker/event_count ALPHA
Broker Event Count
DELTA, INT64, 1
knative_broker 		Number of events received by a broker. Sampled every 60 seconds. After sampling, data is not visible for up to 180 seconds.
response_code_class: One of '1xx', '2xx', '3xx', '4xx', or '5xx' according to response code of the request. If any other code is returned, it should be reported as '5xx'.
response_code: (INT64) Response code of the request according to protocol.
event_type: The CloudEvent type attribute.
eventing/trigger/event_count ALPHA
Trigger Event Count
DELTA, INT64, 1
knative_trigger 		Number of events received by a trigger. Sampled every 60 seconds. After sampling, data is not visible for up to 180 seconds.
response_code_class: One of '1xx', '2xx', '3xx', '4xx', or '5xx' according to response code of the request. If any other code is returned, it should be reported as '5xx'.
response_code: (INT64) Response code of the request according to protocol.
filter_type: The CloudEvent type attribute used to filter events.
eventing/trigger/event_dispatch_latencies ALPHA
Event Dispatch Latencies
DELTA, DISTRIBUTION, ms
knative_trigger 		Distribution of time spent dispatching an event to a trigger subscriber. Sampled every 60 seconds. After sampling, data is not visible for up to 180 seconds.
response_code_class: One of '1xx', '2xx', '3xx', '4xx', or '5xx' according to response code of the request. If any other code is returned, it should be reported as '5xx'.
response_code: (INT64) Response code of the request according to protocol.
filter_type: The CloudEvent type attribute used to filter events.
eventing/trigger/event_processing_latencies ALPHA
Event Processing Latencies
DELTA, DISTRIBUTION, ms
knative_trigger 		Distribution of time spent processing an event before it is dispatched to a trigger subscriber. Sampled every 60 seconds. After sampling, data is not visible for up to 180 seconds.
filter_type: The CloudEvent type attribute used to filter events.
serving/activator/request_count BETA
Activator Request Count
DELTA, INT64, 1
knative_revision 		The number of requests that are routed to the activator. Sampled every 60 seconds. After sampling, data is not visible for up to 180 seconds.
response_code_class: One of '1xx', '2xx', '3xx', '4xx', or '5xx' according to response code of the request. If any other code is returned, it should be reported as '5xx'.
response_code: (INT64) Response code of the request according to protocol.
num_tries: (INT64) The number of tries (retry on 503s only) it takes to get a response from a reserve revision.
serving/activator/request_latencies BETA
Activator Request Latencies
DELTA, DISTRIBUTION, ms
knative_revision 		Distribution of service request times in milliseconds for requests that go through the activator. Value is the total time requests spent in activator and revision pods. Sampled every 60 seconds. After sampling, data is not visible for up to 180 seconds.
response_code_class: One of '1xx', '2xx', '3xx', '4xx', or '5xx' according to response code of the request. If any other code is returned, it should be reported as '5xx'.
response_code: (INT64) Response code of the request according to protocol.
serving/autoscaler/actual_pods BETA
Actual Pod Count
GAUGE, INT64, 1
knative_revision 		Number of pods that are allocated currently. Sampled every 60 seconds.
serving/autoscaler/desired_pods BETA
Desired Pod Count
GAUGE, INT64, 1
knative_revision 		Number of pods autoscaler wants to allocate. Sampled every 60 seconds.
serving/autoscaler/panic_mode BETA
Panic Mode
GAUGE, INT64, 1
knative_revision 		Set to 1 if autoscaler is in panic mode for the revision, otherwise 0. Sampled every 60 seconds.
serving/autoscaler/panic_request_concurrency BETA
Observed Panic Concurrency
GAUGE, DOUBLE, 1
knative_revision 		Average requests concurrency observed per pod during the shorter panic autoscaling window. Sampled every 60 seconds.
serving/autoscaler/requested_pods BETA
Requested Pod Count
GAUGE, INT64, 1
knative_revision 		Number of pods autoscaler requested from Kubernetes. Sampled every 60 seconds.
serving/autoscaler/stable_request_concurrency BETA
Observed Stable Concurrency
GAUGE, DOUBLE, 1
knative_revision 		Average requests concurrency observed per pod during the stable autoscaling window. Sampled every 60 seconds.
serving/autoscaler/target_concurrency_per_pod BETA
Target Concurrency Per Pod
GAUGE, DOUBLE, 1
knative_revision 		The desired average requests concurrency per pod during the stable autoscaling window. Sampled every 60 seconds.
serving/revision/request_count BETA
Request Count
DELTA, INT64, 1
knative_revision 		The number of requests reaching the revision. Sampled every 60 seconds. After sampling, data is not visible for up to 180 seconds.
response_code_class: One of '1xx', '2xx', '3xx', '4xx', or '5xx' according to response code of the request. If any other code is returned, it should be reported as '5xx'.
response_code: (INT64) Response code of the request according to protocol.
serving/revision/request_latencies BETA
Request Latencies
DELTA, DISTRIBUTION, ms
knative_revision 		Distribution of service request times in milliseconds for requests reaching the revision. Value is the time requests spent in revision pods. Sampled every 60 seconds. After sampling, data is not visible for up to 180 seconds.
response_code_class: One of '1xx', '2xx', '3xx', '4xx', or '5xx' according to response code of the request. If any other code is returned, it should be reported as '5xx'.
response_code: (INT64) Response code of the request according to protocol.

Generated at 2023-03-23 14:46:33 UTC.