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Add metrics about KnativeServing CR edits#233

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knative-prow-robot merged 2 commits intoknative:masterfrom
jihuin:metrics
Dec 7, 2019
Merged

Add metrics about KnativeServing CR edits#233
knative-prow-robot merged 2 commits intoknative:masterfrom
jihuin:metrics

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@jihuin
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@jihuin jihuin commented Nov 22, 2019 •
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Proposed Changes

Serving operator can emit metrics on KnativeServing CR edits, including creation, modification and deletion.

Steps to test metrics with Prometheus exporter (default):

  1. Forward the local port 9090 to the port 9090 on operator pod by running
    kubectl port-forward ${{operator_pod_name}} 9090
  2. Check the metrics by visiting localhost:9090/metrics

Release Note

NONE

@googlebot googlebot added the cla: yes Author(s) signed a CLA. label Nov 22, 2019
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jihuin commented Nov 22, 2019

/assign @trshafer @anniefu @garron

trshafer
trshafer reviewed Nov 22, 2019
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anniefu
anniefu reviewed Nov 22, 2019
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anniefu
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@jihuin jihuin changed the title Add metrics about KnativeServing CR install and deployment spin-up Add metrics about KnativeServing CR edits Nov 27, 2019
trshafer
trshafer reviewed Dec 3, 2019
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pkg/reconciler/knativeserving/knativeserving_controller.go Outdated
r.config.DeleteAll(&metav1.DeleteOptions{})
// Report the KnativeServing edit when deleting an existed KnativeServing
if _, ok := r.servings[key]; ok {
r.StatsReporter.ReportKnativeServingEdit(key)
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@trshafer trshafer Dec 3, 2019

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test?

pkg/reconciler/knativeserving/knativeserving_controller.go Outdated
newGen := original.Generation
oldGen, ok := r.servings[key]
if (ok && newGen == oldGen+1) || (!ok && newGen == 1) {
r.StatsReporter.ReportKnativeServingEdit(key)
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@trshafer trshafer Dec 3, 2019

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Can the generation be attached?

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@jihuin jihuin Dec 5, 2019

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Attaching the generation may be not that useful for the metrics only counting the number of changes.

anniefu
anniefu reviewed Dec 3, 2019
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anniefu
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anniefu
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anniefu
anniefu reviewed Dec 3, 2019
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anniefu
anniefu reviewed Dec 3, 2019
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anniefu
anniefu reviewed Dec 3, 2019
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anniefu
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anniefu
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@jihuin
Create stats reporter and test
bf83702 
Add stats reporter to reconciler base

Report metrics about KnativeServing CR change
anniefu
anniefu reviewed Dec 4, 2019
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anniefu
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knative-metrics-robot commented Dec 5, 2019

The following is the coverage report on the affected files.
Say /test pull-knative-serving-operator-go-coverage to re-run this coverage report

File Old Coverage New Coverage Delta
pkg/reconciler/reconciler.go 100.0% 94.4% -5.6
pkg/reconciler/stats_reporter.go Do not exist 75.0%

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anniefu commented Dec 5, 2019

Could you test with stackdriver by setting these in config-observability?

    metrics.backend-destination: stackdriver
    metrics.request-metrics-backend-destination: stackdriver
    metrics.allow-stackdriver-custom-metrics: "true"

Otherwise,
/lgtm

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jihuin commented Dec 5, 2019 •
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@anniefu Tested with prometheus and stackdriver, and both worked as expected.

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trshafer commented Dec 7, 2019

/lgtm
/approve

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knative-prow-robot commented Dec 7, 2019

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: jihuin, trshafer

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@knative-prow-robot knative-prow-robot merged commit 180e4e7 into knative:master Dec 7, 2019
@jihuin jihuin deleted the metrics branch December 27, 2019 18:55
@jcrossley3 jcrossley3 mentioned this pull request May 8, 2020
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@bbrowning bbrowning Awaiting requested review from bbrowning

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@trshafer trshafer trshafer left review comments

@mattmoor mattmoor mattmoor left review comments

@anniefu anniefu anniefu left review comments

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@trshafer trshafer

@garron garron

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@jihuin @knative-metrics-robot @anniefu @trshafer @knative-prow-robot @mattmoor @garron @googlebot