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Since we use ActiveQueryTracker to check for concurrency in d992c36b3a08470532fb4fb36a768a20ec8f2e12 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>
61 lines
1.8 KiB
Go
61 lines
1.8 KiB
Go
// Copyright 2015 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 promql
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import (
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"context"
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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/util/teststorage"
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"github.com/prometheus/prometheus/util/testutil"
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)
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func TestDeriv(t *testing.T) {
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// https://github.com/prometheus/prometheus/issues/2674#issuecomment-315439393
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// This requires more precision than the usual test system offers,
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// so we test it by hand.
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storage := teststorage.New(t)
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defer storage.Close()
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opts := EngineOpts{
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Logger: nil,
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Reg: nil,
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MaxSamples: 10000,
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Timeout: 10 * time.Second,
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}
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engine := NewEngine(opts)
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a, err := storage.Appender()
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testutil.Ok(t, err)
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metric := labels.FromStrings("__name__", "foo")
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a.Add(metric, 1493712816939, 1.0)
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a.Add(metric, 1493712846939, 1.0)
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err = a.Commit()
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testutil.Ok(t, err)
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query, err := engine.NewInstantQuery(storage, "deriv(foo[30m])", timestamp.Time(1493712846939))
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testutil.Ok(t, err)
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result := query.Exec(context.Background())
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testutil.Ok(t, result.Err)
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vec, _ := result.Vector()
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testutil.Assert(t, len(vec) == 1, "Expected 1 result, got %d", len(vec))
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testutil.Assert(t, vec[0].V == 0.0, "Expected 0.0 as value, got %f", vec[0].V)
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}
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