prometheus/rules/helpers_test.go
Fabian Reinartz 6f754073d5 Add OR operation and vector matching options.
This commits implements the OR operation between two vectors.
Vector matching using the ON clause is added to limit the set of
labels that define a match between two elements. Group modifiers
(GROUP_LEFT/GROUP_RIGHT) to request many-to-one matching are added.
2015-03-03 11:35:10 +01:00

486 lines
14 KiB
Go

// Copyright 2013 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package rules
import (
"time"
clientmodel "github.com/prometheus/client_golang/model"
"github.com/prometheus/prometheus/rules/ast"
"github.com/prometheus/prometheus/storage/local"
"github.com/prometheus/prometheus/storage/metric"
)
var testSampleInterval = time.Duration(5) * time.Minute
var testStartTime = clientmodel.Timestamp(0)
func getTestValueStream(startVal clientmodel.SampleValue, endVal clientmodel.SampleValue, stepVal clientmodel.SampleValue, startTime clientmodel.Timestamp) (resultValues metric.Values) {
currentTime := startTime
for currentVal := startVal; currentVal <= endVal; currentVal += stepVal {
sample := metric.SamplePair{
Value: currentVal,
Timestamp: currentTime,
}
resultValues = append(resultValues, sample)
currentTime = currentTime.Add(testSampleInterval)
}
return resultValues
}
func getTestVectorFromTestMatrix(matrix ast.Matrix) ast.Vector {
vector := ast.Vector{}
for _, sampleStream := range matrix {
lastSample := sampleStream.Values[len(sampleStream.Values)-1]
vector = append(vector, &ast.Sample{
Metric: sampleStream.Metric,
Value: lastSample.Value,
Timestamp: lastSample.Timestamp,
})
}
return vector
}
func storeMatrix(storage local.Storage, matrix ast.Matrix) {
pendingSamples := clientmodel.Samples{}
for _, sampleStream := range matrix {
for _, sample := range sampleStream.Values {
pendingSamples = append(pendingSamples, &clientmodel.Sample{
Metric: sampleStream.Metric.Metric,
Value: sample.Value,
Timestamp: sample.Timestamp,
})
}
}
storage.AppendSamples(pendingSamples)
storage.WaitForIndexing()
}
var testMatrix = ast.Matrix{
{
Metric: clientmodel.COWMetric{
Metric: clientmodel.Metric{
clientmodel.MetricNameLabel: "http_requests",
clientmodel.JobLabel: "api-server",
"instance": "0",
"group": "production",
},
},
Values: getTestValueStream(0, 100, 10, testStartTime),
},
{
Metric: clientmodel.COWMetric{
Metric: clientmodel.Metric{
clientmodel.MetricNameLabel: "http_requests",
clientmodel.JobLabel: "api-server",
"instance": "1",
"group": "production",
},
},
Values: getTestValueStream(0, 200, 20, testStartTime),
},
{
Metric: clientmodel.COWMetric{
Metric: clientmodel.Metric{
clientmodel.MetricNameLabel: "http_requests",
clientmodel.JobLabel: "api-server",
"instance": "0",
"group": "canary",
},
},
Values: getTestValueStream(0, 300, 30, testStartTime),
},
{
Metric: clientmodel.COWMetric{
Metric: clientmodel.Metric{
clientmodel.MetricNameLabel: "http_requests",
clientmodel.JobLabel: "api-server",
"instance": "1",
"group": "canary",
},
},
Values: getTestValueStream(0, 400, 40, testStartTime),
},
{
Metric: clientmodel.COWMetric{
Metric: clientmodel.Metric{
clientmodel.MetricNameLabel: "http_requests",
clientmodel.JobLabel: "app-server",
"instance": "0",
"group": "production",
},
},
Values: getTestValueStream(0, 500, 50, testStartTime),
},
{
Metric: clientmodel.COWMetric{
Metric: clientmodel.Metric{
clientmodel.MetricNameLabel: "http_requests",
clientmodel.JobLabel: "app-server",
"instance": "1",
"group": "production",
},
},
Values: getTestValueStream(0, 600, 60, testStartTime),
},
{
Metric: clientmodel.COWMetric{
Metric: clientmodel.Metric{
clientmodel.MetricNameLabel: "http_requests",
clientmodel.JobLabel: "app-server",
"instance": "0",
"group": "canary",
},
},
Values: getTestValueStream(0, 700, 70, testStartTime),
},
{
Metric: clientmodel.COWMetric{
Metric: clientmodel.Metric{
clientmodel.MetricNameLabel: "http_requests",
clientmodel.JobLabel: "app-server",
"instance": "1",
"group": "canary",
},
},
Values: getTestValueStream(0, 800, 80, testStartTime),
},
// Single-letter metric and label names.
{
Metric: clientmodel.COWMetric{
Metric: clientmodel.Metric{
clientmodel.MetricNameLabel: "x",
"y": "testvalue",
},
},
Values: getTestValueStream(0, 100, 10, testStartTime),
},
// Counter reset in the middle of range.
{
Metric: clientmodel.COWMetric{
Metric: clientmodel.Metric{
clientmodel.MetricNameLabel: "testcounter_reset_middle",
},
},
Values: append(getTestValueStream(0, 40, 10, testStartTime), getTestValueStream(0, 50, 10, testStartTime.Add(testSampleInterval*5))...),
},
// Counter reset at the end of range.
{
Metric: clientmodel.COWMetric{
Metric: clientmodel.Metric{
clientmodel.MetricNameLabel: "testcounter_reset_end",
},
},
Values: append(getTestValueStream(0, 90, 10, testStartTime), getTestValueStream(0, 0, 10, testStartTime.Add(testSampleInterval*10))...),
},
// For label-key grouping regression test.
{
Metric: clientmodel.COWMetric{
Metric: clientmodel.Metric{
clientmodel.MetricNameLabel: "label_grouping_test",
"a": "aa",
"b": "bb",
},
},
Values: getTestValueStream(0, 100, 10, testStartTime),
},
{
Metric: clientmodel.COWMetric{
Metric: clientmodel.Metric{
clientmodel.MetricNameLabel: "label_grouping_test",
"a": "a",
"b": "abb",
},
},
Values: getTestValueStream(0, 200, 20, testStartTime),
},
// Two histograms with 4 buckets each (*_sum and *_count not included,
// only buckets). Lowest bucket for one histogram < 0, for the other >
// 0. They have the same name, just separated by label. Not useful in
// practice, but can happen (if clients change bucketing), and the
// server has to cope with it.
{
Metric: clientmodel.COWMetric{
Metric: clientmodel.Metric{
clientmodel.MetricNameLabel: "testhistogram_bucket",
"le": "0.1",
"start": "positive",
},
},
Values: getTestValueStream(0, 50, 5, testStartTime),
},
{
Metric: clientmodel.COWMetric{
Metric: clientmodel.Metric{
clientmodel.MetricNameLabel: "testhistogram_bucket",
"le": ".2",
"start": "positive",
},
},
Values: getTestValueStream(0, 70, 7, testStartTime),
},
{
Metric: clientmodel.COWMetric{
Metric: clientmodel.Metric{
clientmodel.MetricNameLabel: "testhistogram_bucket",
"le": "1e0",
"start": "positive",
},
},
Values: getTestValueStream(0, 110, 11, testStartTime),
},
{
Metric: clientmodel.COWMetric{
Metric: clientmodel.Metric{
clientmodel.MetricNameLabel: "testhistogram_bucket",
"le": "+Inf",
"start": "positive",
},
},
Values: getTestValueStream(0, 120, 12, testStartTime),
},
{
Metric: clientmodel.COWMetric{
Metric: clientmodel.Metric{
clientmodel.MetricNameLabel: "testhistogram_bucket",
"le": "-.2",
"start": "negative",
},
},
Values: getTestValueStream(0, 10, 1, testStartTime),
},
{
Metric: clientmodel.COWMetric{
Metric: clientmodel.Metric{
clientmodel.MetricNameLabel: "testhistogram_bucket",
"le": "-0.1",
"start": "negative",
},
},
Values: getTestValueStream(0, 20, 2, testStartTime),
},
{
Metric: clientmodel.COWMetric{
Metric: clientmodel.Metric{
clientmodel.MetricNameLabel: "testhistogram_bucket",
"le": "0.3",
"start": "negative",
},
},
Values: getTestValueStream(0, 20, 2, testStartTime),
},
{
Metric: clientmodel.COWMetric{
Metric: clientmodel.Metric{
clientmodel.MetricNameLabel: "testhistogram_bucket",
"le": "+Inf",
"start": "negative",
},
},
Values: getTestValueStream(0, 30, 3, testStartTime),
},
// Now a more realistic histogram per job and instance to test aggregation.
{
Metric: clientmodel.COWMetric{
Metric: clientmodel.Metric{
clientmodel.MetricNameLabel: "request_duration_seconds_bucket",
clientmodel.JobLabel: "job1",
"instance": "ins1",
"le": "0.1",
},
},
Values: getTestValueStream(0, 10, 1, testStartTime),
},
{
Metric: clientmodel.COWMetric{
Metric: clientmodel.Metric{
clientmodel.MetricNameLabel: "request_duration_seconds_bucket",
clientmodel.JobLabel: "job1",
"instance": "ins1",
"le": "0.2",
},
},
Values: getTestValueStream(0, 30, 3, testStartTime),
},
{
Metric: clientmodel.COWMetric{
Metric: clientmodel.Metric{
clientmodel.MetricNameLabel: "request_duration_seconds_bucket",
clientmodel.JobLabel: "job1",
"instance": "ins1",
"le": "+Inf",
},
},
Values: getTestValueStream(0, 40, 4, testStartTime),
},
{
Metric: clientmodel.COWMetric{
Metric: clientmodel.Metric{
clientmodel.MetricNameLabel: "request_duration_seconds_bucket",
clientmodel.JobLabel: "job1",
"instance": "ins2",
"le": "0.1",
},
},
Values: getTestValueStream(0, 20, 2, testStartTime),
},
{
Metric: clientmodel.COWMetric{
Metric: clientmodel.Metric{
clientmodel.MetricNameLabel: "request_duration_seconds_bucket",
clientmodel.JobLabel: "job1",
"instance": "ins2",
"le": "0.2",
},
},
Values: getTestValueStream(0, 50, 5, testStartTime),
},
{
Metric: clientmodel.COWMetric{
Metric: clientmodel.Metric{
clientmodel.MetricNameLabel: "request_duration_seconds_bucket",
clientmodel.JobLabel: "job1",
"instance": "ins2",
"le": "+Inf",
},
},
Values: getTestValueStream(0, 60, 6, testStartTime),
},
{
Metric: clientmodel.COWMetric{
Metric: clientmodel.Metric{
clientmodel.MetricNameLabel: "request_duration_seconds_bucket",
clientmodel.JobLabel: "job2",
"instance": "ins1",
"le": "0.1",
},
},
Values: getTestValueStream(0, 30, 3, testStartTime),
},
{
Metric: clientmodel.COWMetric{
Metric: clientmodel.Metric{
clientmodel.MetricNameLabel: "request_duration_seconds_bucket",
clientmodel.JobLabel: "job2",
"instance": "ins1",
"le": "0.2",
},
},
Values: getTestValueStream(0, 40, 4, testStartTime),
},
{
Metric: clientmodel.COWMetric{
Metric: clientmodel.Metric{
clientmodel.MetricNameLabel: "request_duration_seconds_bucket",
clientmodel.JobLabel: "job2",
"instance": "ins1",
"le": "+Inf",
},
},
Values: getTestValueStream(0, 60, 6, testStartTime),
},
{
Metric: clientmodel.COWMetric{
Metric: clientmodel.Metric{
clientmodel.MetricNameLabel: "request_duration_seconds_bucket",
clientmodel.JobLabel: "job2",
"instance": "ins2",
"le": "0.1",
},
},
Values: getTestValueStream(0, 40, 4, testStartTime),
},
{
Metric: clientmodel.COWMetric{
Metric: clientmodel.Metric{
clientmodel.MetricNameLabel: "request_duration_seconds_bucket",
clientmodel.JobLabel: "job2",
"instance": "ins2",
"le": "0.2",
},
},
Values: getTestValueStream(0, 70, 7, testStartTime),
},
{
Metric: clientmodel.COWMetric{
Metric: clientmodel.Metric{
clientmodel.MetricNameLabel: "request_duration_seconds_bucket",
clientmodel.JobLabel: "job2",
"instance": "ins2",
"le": "+Inf",
},
},
Values: getTestValueStream(0, 90, 9, testStartTime),
},
{
Metric: clientmodel.COWMetric{
Metric: clientmodel.Metric{
clientmodel.MetricNameLabel: "vector_matching_a",
"l": "x",
},
},
Values: getTestValueStream(0, 100, 1, testStartTime),
},
{
Metric: clientmodel.COWMetric{
Metric: clientmodel.Metric{
clientmodel.MetricNameLabel: "vector_matching_a",
"l": "y",
},
},
Values: getTestValueStream(0, 100, 2, testStartTime),
},
{
Metric: clientmodel.COWMetric{
Metric: clientmodel.Metric{
clientmodel.MetricNameLabel: "vector_matching_b",
"l": "x",
},
},
Values: getTestValueStream(0, 100, 4, testStartTime),
},
{
Metric: clientmodel.COWMetric{
Metric: clientmodel.Metric{
clientmodel.MetricNameLabel: "cpu_count",
"instance": "0",
"type": "numa",
},
},
Values: getTestValueStream(0, 500, 30, testStartTime),
},
{
Metric: clientmodel.COWMetric{
Metric: clientmodel.Metric{
clientmodel.MetricNameLabel: "cpu_count",
"instance": "0",
"type": "smp",
},
},
Values: getTestValueStream(0, 200, 10, testStartTime),
},
{
Metric: clientmodel.COWMetric{
Metric: clientmodel.Metric{
clientmodel.MetricNameLabel: "cpu_count",
"instance": "1",
"type": "smp",
},
},
Values: getTestValueStream(0, 200, 20, testStartTime),
},
}
var testVector = getTestVectorFromTestMatrix(testMatrix)