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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,163 @@ | ||
| // Copyright (c) The Thanos Community Authors. | ||
| // Licensed under the Apache License 2.0. | ||
|
|
||
| package engine_test | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "runtime" | ||
| "testing" | ||
| "time" | ||
|
|
||
| "github.com/efficientgo/core/testutil" | ||
| "github.com/prometheus/prometheus/model/labels" | ||
| "github.com/prometheus/prometheus/promql" | ||
| "github.com/prometheus/prometheus/storage" | ||
| "github.com/thanos-io/promql-engine/engine" | ||
| ) | ||
|
|
||
| func TestQueryExplain(t *testing.T) { | ||
| opts := promql.EngineOpts{Timeout: 1 * time.Hour} | ||
| series := storage.MockSeries( | ||
| []int64{240, 270, 300, 600, 630, 660}, | ||
| []float64{1, 2, 3, 4, 5, 6}, | ||
| []string{labels.MetricName, "foo"}, | ||
| ) | ||
|
|
||
| start := time.Unix(0, 0) | ||
| end := time.Unix(1000, 0) | ||
|
|
||
| // Calculate concurrencyOperators according to max available CPUs. | ||
| totalOperators := runtime.GOMAXPROCS(0) / 2 | ||
| concurrencyOperators := []engine.ExplainOutputNode{} | ||
| for i := 0; i < totalOperators; i++ { | ||
| concurrencyOperators = append(concurrencyOperators, engine.ExplainOutputNode{ | ||
| OperatorName: "[*concurrencyOperator(buff=2)]", Children: []engine.ExplainOutputNode{ | ||
| {OperatorName: fmt.Sprintf("[*vectorSelector] {[__name__=\"foo\"]} %d mod %d", i, totalOperators)}, | ||
| }, | ||
| }) | ||
| } | ||
|
|
||
| for _, tc := range []struct { | ||
| query string | ||
| expected *engine.ExplainOutputNode | ||
| }{ | ||
| { | ||
| query: "time()", | ||
| expected: &engine.ExplainOutputNode{OperatorName: "[*noArgFunctionOperator] time()"}, | ||
| }, | ||
| { | ||
| query: "foo", | ||
| expected: &engine.ExplainOutputNode{OperatorName: "[*coalesce]", Children: concurrencyOperators}, | ||
| }, | ||
| { | ||
| query: "sum(foo) by (job)", | ||
| expected: &engine.ExplainOutputNode{OperatorName: "[*concurrencyOperator(buff=2)]", Children: []engine.ExplainOutputNode{ | ||
| {OperatorName: "[*aggregate] sum by ([job])", Children: []engine.ExplainOutputNode{ | ||
| {OperatorName: "[*coalesce]", Children: concurrencyOperators}, | ||
| }, | ||
| }, | ||
| }, | ||
| }, | ||
| }, | ||
| } { | ||
| { | ||
| t.Run(tc.query, func(t *testing.T) { | ||
| ng := engine.New(engine.Opts{EngineOpts: opts}) | ||
| ctx := context.Background() | ||
|
|
||
| var ( | ||
| query promql.Query | ||
| err error | ||
| ) | ||
|
|
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| query, err = ng.NewInstantQuery(ctx, storageWithSeries(series), nil, tc.query, start) | ||
| testutil.Ok(t, err) | ||
|
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| explainableQuery := query.(engine.ExplainableQuery) | ||
| testutil.Equals(t, tc.expected, explainableQuery.Explain()) | ||
|
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| query, err = ng.NewRangeQuery(ctx, storageWithSeries(series), nil, tc.query, start, end, 30*time.Second) | ||
| testutil.Ok(t, err) | ||
|
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| explainableQuery = query.(engine.ExplainableQuery) | ||
| testutil.Equals(t, tc.expected, explainableQuery.Explain()) | ||
| }) | ||
| } | ||
| } | ||
| } | ||
|
|
||
| func assertExecutionTimeNonZero(t *testing.T, got *engine.AnalyzeOutputNode) bool { | ||
| if got != nil { | ||
| if got.OperatorTelemetry.ExecutionTimeTaken() <= 0 { | ||
| t.Errorf("expected non-zero ExecutionTime for Operator, got %s ", got.OperatorTelemetry.ExecutionTimeTaken()) | ||
| return false | ||
| } | ||
| for i := range got.Children { | ||
| child := got.Children[i] | ||
| return got.OperatorTelemetry.ExecutionTimeTaken() > 0 && assertExecutionTimeNonZero(t, &child) | ||
| } | ||
| } | ||
| return true | ||
| } | ||
|
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| func TestQueryAnalyze(t *testing.T) { | ||
| opts := promql.EngineOpts{Timeout: 1 * time.Hour} | ||
| series := storage.MockSeries( | ||
| []int64{240, 270, 300, 600, 630, 660}, | ||
| []float64{1, 2, 3, 4, 5, 6}, | ||
| []string{labels.MetricName, "foo"}, | ||
| ) | ||
|
|
||
| start := time.Unix(0, 0) | ||
| end := time.Unix(1000, 0) | ||
|
|
||
| for _, tc := range []struct { | ||
| query string | ||
| }{ | ||
| { | ||
| query: "foo", | ||
| }, | ||
| { | ||
| query: "time()", | ||
| }, | ||
| { | ||
| query: "sum(foo) by (job)", | ||
| }, | ||
| { | ||
| query: "rate(http_requests_total[30s]) > bool 0", | ||
| }, | ||
| } { | ||
| { | ||
| t.Run(tc.query, func(t *testing.T) { | ||
| ng := engine.New(engine.Opts{EngineOpts: opts, EnableAnalysis: true}) | ||
| ctx := context.Background() | ||
|
|
||
| var ( | ||
| query promql.Query | ||
| err error | ||
| ) | ||
|
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| query, err = ng.NewInstantQuery(ctx, storageWithSeries(series), nil, tc.query, start) | ||
| testutil.Ok(t, err) | ||
|
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| queryResults := query.Exec(context.Background()) | ||
| testutil.Ok(t, queryResults.Err) | ||
|
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| explainableQuery := query.(engine.ExplainableQuery) | ||
|
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| testutil.Assert(t, assertExecutionTimeNonZero(t, explainableQuery.Analyze())) | ||
|
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| query, err = ng.NewRangeQuery(ctx, storageWithSeries(series), nil, tc.query, start, end, 30*time.Second) | ||
| testutil.Ok(t, err) | ||
|
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| queryResults = query.Exec(context.Background()) | ||
| testutil.Ok(t, queryResults.Err) | ||
|
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| explainableQuery = query.(engine.ExplainableQuery) | ||
| testutil.Assert(t, assertExecutionTimeNonZero(t, explainableQuery.Analyze())) | ||
| }) | ||
| } | ||
| } | ||
| } |