Knative Eventing: Evaluating Metrics for activity...

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Chandrasekhar Rao

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Jul 30, 2021, 10:04:22 AMJul 30
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Hey Folks

We are trying to evaluate the experimental version Knative v0.24

Describe the bug
Knative Eventing Metrics does not display expected metrics per https://knative.dev/docs/admin/collecting-metrics/eventing-metrics/metrics/ and also displays unexpected output...

Expected behavior
When exposing broker ingress metrics, we expected to see "broker_ingress_**event_count", "broker_ingress_event_dispatch_latencies ...but saw the attached metrics and they look different from documentation.

To Reproduce
Install Knative Eventing 0.24 and scrape broker-ingress or just change cluster to NodePort for quick test...

Knative release version
0.24
Additional context - Actual Metrics Seen
Actual Output of Metrics:

mt_broker_ingress_client_latency_bucket{name="",le="1e-05"} 0
mt_broker_ingress_client_latency_bucket{name="",le="0.0001"} 0
mt_broker_ingress_client_latency_bucket{name="",le="0.001"} 0
mt_broker_ingress_client_latency_bucket{name="",le="0.01"} 1
mt_broker_ingress_client_latency_bucket{name="",le="0.1"} 1
mt_broker_ingress_client_latency_bucket{name="",le="1"} 1
mt_broker_ingress_client_latency_bucket{name="",le="10"} 1
mt_broker_ingress_client_latency_bucket{name="",le="100"} 1
mt_broker_ingress_client_latency_bucket{name="",le="+Inf"} 1
mt_broker_ingress_client_latency_sum{name=""} 0.003490981
mt_broker_ingress_client_latency_count{name=""} 1
mt_broker_ingress_client_results{name=""} 195
...
...

Is this how the metrics are displayed? what the keyword mt_ in front and where are count metrics mentioned in docs....


Any clues?


Chandra

Chandrasekhar Rao

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Aug 3, 2021, 1:54:47 PMAug 3
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Resolved on GIT... please refer to resoulution there...

Chandra
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