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Merge pull request #52544 from shyamjvs/increase-window-of-prometheus-metric

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Automatic merge from submit-queue

Increase sliding window to 5hr for request_latencies metric

We're seeing high latency values for a couple of types of api calls in our density test (ref https://github.com/kubernetes/kubernetes/issues/51899). And we're recording values from only the last 1 hour in the metric (as @wojtek-t told me offline) - so our test result is pretty much counting only the calls during the delete phase.

cc @kubernetes/sig-scalability-misc @kubernetes/sig-api-machinery-misc @gmarek
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Kubernetes Submit Queue 2017-09-15 09:19:06 -07:00 committed by GitHub
commit 9ef9a1b8f0
1 changed files with 3 additions and 2 deletions
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5
staging/src/k8s.io/apiserver/pkg/endpoints/metrics/metrics.go
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@ -56,8 +56,9 @@ var (
prometheus.SummaryOpts{
Name: "apiserver_request_latencies_summary",
Help: "Response latency summary in microseconds for each verb, resource and subresource.",
// Make the sliding window of 1h.
MaxAge: time.Hour,
// Make the sliding window of 5h.
// TODO: The value for this should be based on our SLI definition (medium term).
MaxAge: 5 * time.Hour,
},
[]string{"verb", "resource", "subresource", "scope"},
)