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9adad8ad30
Since we use ActiveQueryTracker to check for concurrency in
d992c36b3a it does not make sense to keep
the MaxConcurrent value as an option of the PromQL engine.
This pull request removes it from the PromQL engine options, sets the
max concurrent metric to -1 if there is no active query tracker, and use
the value of the active query tracker otherwise.
It removes dead code and also will inform people who import the promql
package that we made that change, as it breaks the EngineOpts struct.
Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu>
120 lines
3.5 KiB
Go
120 lines
3.5 KiB
Go
// Copyright 2013 The Prometheus Authors
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package rules
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import (
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"context"
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"fmt"
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"testing"
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"time"
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"github.com/prometheus/prometheus/pkg/labels"
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"github.com/prometheus/prometheus/pkg/timestamp"
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"github.com/prometheus/prometheus/promql"
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"github.com/prometheus/prometheus/util/teststorage"
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"github.com/prometheus/prometheus/util/testutil"
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)
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func TestRuleEval(t *testing.T) {
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storage := teststorage.New(t)
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defer storage.Close()
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opts := promql.EngineOpts{
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Logger: nil,
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Reg: nil,
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MaxSamples: 10,
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Timeout: 10 * time.Second,
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}
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engine := promql.NewEngine(opts)
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ctx, cancelCtx := context.WithCancel(context.Background())
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defer cancelCtx()
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now := time.Now()
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suite := []struct {
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name string
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expr promql.Expr
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labels labels.Labels
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result promql.Vector
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}{
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{
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name: "nolabels",
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expr: &promql.NumberLiteral{Val: 1},
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labels: labels.Labels{},
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result: promql.Vector{promql.Sample{
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Metric: labels.FromStrings("__name__", "nolabels"),
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Point: promql.Point{V: 1, T: timestamp.FromTime(now)},
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}},
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},
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{
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name: "labels",
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expr: &promql.NumberLiteral{Val: 1},
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labels: labels.FromStrings("foo", "bar"),
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result: promql.Vector{promql.Sample{
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Metric: labels.FromStrings("__name__", "labels", "foo", "bar"),
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Point: promql.Point{V: 1, T: timestamp.FromTime(now)},
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}},
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},
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}
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for _, test := range suite {
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rule := NewRecordingRule(test.name, test.expr, test.labels)
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result, err := rule.Eval(ctx, now, EngineQueryFunc(engine, storage), nil)
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testutil.Ok(t, err)
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testutil.Equals(t, test.result, result)
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}
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}
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func TestRecordingRuleHTMLSnippet(t *testing.T) {
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expr, err := promql.ParseExpr(`foo{html="<b>BOLD<b>"}`)
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testutil.Ok(t, err)
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rule := NewRecordingRule("testrule", expr, labels.FromStrings("html", "<b>BOLD</b>"))
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const want = `record: <a href="/test/prefix/graph?g0.expr=testrule&g0.tab=1">testrule</a>
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expr: <a href="/test/prefix/graph?g0.expr=foo%7Bhtml%3D%22%3Cb%3EBOLD%3Cb%3E%22%7D&g0.tab=1">foo{html="<b>BOLD<b>"}</a>
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labels:
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html: '<b>BOLD</b>'
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`
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got := rule.HTMLSnippet("/test/prefix")
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testutil.Assert(t, want == got, "incorrect HTML snippet; want:\n\n%s\n\ngot:\n\n%s", want, got)
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}
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// TestRuleEvalDuplicate tests for duplicate labels in recorded metrics, see #5529.
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func TestRuleEvalDuplicate(t *testing.T) {
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storage := teststorage.New(t)
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defer storage.Close()
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opts := promql.EngineOpts{
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Logger: nil,
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Reg: nil,
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MaxSamples: 10,
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Timeout: 10 * time.Second,
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}
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engine := promql.NewEngine(opts)
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ctx, cancelCtx := context.WithCancel(context.Background())
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defer cancelCtx()
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now := time.Now()
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expr, _ := promql.ParseExpr(`vector(0) or label_replace(vector(0),"test","x","","")`)
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rule := NewRecordingRule("foo", expr, labels.FromStrings("test", "test"))
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_, err := rule.Eval(ctx, now, EngineQueryFunc(engine, storage), nil)
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testutil.NotOk(t, err)
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e := fmt.Errorf("vector contains metrics with the same labelset after applying rule labels")
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testutil.ErrorEqual(t, e, err)
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}
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