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Merge pull request #112557 from marseel/fix_list_estimator

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Fix list estimator for lists that are executed as gets
This commit is contained in:
Kubernetes Prow Robot 2022-09-19 09:09:29 -07:00 committed by GitHub
commit 497e0dfd33
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2 changed files with 37 additions and 0 deletions
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9
staging/src/k8s.io/apiserver/pkg/util/flowcontrol/request/list_work_estimator.go
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@ -50,6 +50,15 @@ func (e *listWorkEstimator) estimate(r *http.Request, flowSchemaName, priorityLe
return WorkEstimate{InitialSeats: e.config.MaximumSeats}
}
if requestInfo.Name != "" {
// Requests with metadata.name specified are usually executed as get
// requests in storage layer so their width should be 1.
// Example of such list requests:
// /apis/certificates.k8s.io/v1/certificatesigningrequests?fieldSelector=metadata.name%3Dcsr-xxs4m
// /api/v1/namespaces/test/configmaps?fieldSelector=metadata.name%3Dbig-deployment-1&limit=500&resourceVersion=0
return WorkEstimate{InitialSeats: e.config.MinimumSeats}
}
query := r.URL.Query()
listOptions := metav1.ListOptions{}
if err := metav1.Convert_url_Values_To_v1_ListOptions(&query, &listOptions, nil); err != nil {

28
staging/src/k8s.io/apiserver/pkg/util/flowcontrol/request/width_test.go
View File

@ -256,6 +256,34 @@ func TestWorkEstimator(t *testing.T) {
countErr: errors.New("unknown error"),
initialSeatsExpected: maximumSeats,
},
{
name: "request verb is list, metadata.name specified",
requestURI: "http://server/apis/foo.bar/v1/events?fieldSelector=metadata.name%3Dtest",
requestInfo: &apirequest.RequestInfo{
Verb: "list",
Name: "test",
APIGroup: "foo.bar",
Resource: "events",
},
counts: map[string]int64{
"events.foo.bar": 799,
},
initialSeatsExpected: minimumSeats,
},
{
name: "request verb is list, metadata.name, resourceVersion and limit specified",
requestURI: "http://server/apis/foo.bar/v1/events?fieldSelector=metadata.name%3Dtest&limit=500&resourceVersion=0",
requestInfo: &apirequest.RequestInfo{
Verb: "list",
Name: "test",
APIGroup: "foo.bar",
Resource: "events",
},
counts: map[string]int64{
"events.foo.bar": 799,
},
initialSeatsExpected: minimumSeats,
},
{
name: "request verb is create, no watches",
requestURI: "http://server/apis/foo.bar/v1/foos",