prometheus/storage/metric/curator_test.go
2013-04-21 20:52:21 +02:00

524 lines
12 KiB
Go

// Copyright 2013 Prometheus Team
// 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 metric
import (
"code.google.com/p/goprotobuf/proto"
"github.com/prometheus/prometheus/coding"
"github.com/prometheus/prometheus/coding/indexable"
"github.com/prometheus/prometheus/model"
dto "github.com/prometheus/prometheus/model/generated"
"github.com/prometheus/prometheus/storage/raw/leveldb"
fixture "github.com/prometheus/prometheus/storage/raw/leveldb/test"
"testing"
"time"
)
type (
curationState struct {
fingerprint string
groupSize int
recencyThreshold time.Duration
lastCurated time.Time
}
watermarkState struct {
fingerprint string
lastAppended time.Time
}
sample struct {
time time.Time
value model.SampleValue
}
sampleGroup struct {
fingerprint string
values []sample
}
in struct {
curationStates fixture.Pairs
watermarkStates fixture.Pairs
sampleGroups fixture.Pairs
recencyThreshold time.Duration
groupSize uint32
}
)
func (c curationState) Get() (key, value coding.Encoder) {
key = coding.NewProtocolBuffer(&dto.CurationKey{
Fingerprint: model.NewFingerprintFromRowKey(c.fingerprint).ToDTO(),
MinimumGroupSize: proto.Uint32(uint32(c.groupSize)),
OlderThan: proto.Int64(int64(c.recencyThreshold)),
})
value = coding.NewProtocolBuffer(&dto.CurationValue{
LastCompletionTimestamp: proto.Int64(c.lastCurated.Unix()),
})
return
}
func (w watermarkState) Get() (key, value coding.Encoder) {
key = coding.NewProtocolBuffer(model.NewFingerprintFromRowKey(w.fingerprint).ToDTO())
value = coding.NewProtocolBuffer(model.NewWatermarkFromTime(w.lastAppended).ToMetricHighWatermarkDTO())
return
}
func (s sampleGroup) Get() (key, value coding.Encoder) {
key = coding.NewProtocolBuffer(&dto.SampleKey{
Fingerprint: model.NewFingerprintFromRowKey(s.fingerprint).ToDTO(),
Timestamp: indexable.EncodeTime(s.values[0].time),
LastTimestamp: proto.Int64(s.values[len(s.values)-1].time.Unix()),
SampleCount: proto.Uint32(uint32(len(s.values))),
})
series := &dto.SampleValueSeries{}
for _, value := range s.values {
series.Value = append(series.Value, &dto.SampleValueSeries_Value{
Timestamp: proto.Int64(value.time.Unix()),
Value: value.value.ToDTO(),
})
}
value = coding.NewProtocolBuffer(series)
return
}
func TestCurator(t *testing.T) {
var (
scenarios = []struct {
in in
}{
{
in: in{
recencyThreshold: 1 * time.Hour,
groupSize: 5,
curationStates: fixture.Pairs{
curationState{
fingerprint: "0001-A-1-Z",
groupSize: 5,
recencyThreshold: 1 * time.Hour,
lastCurated: testInstant.Add(-1 * 30 * time.Minute),
},
curationState{
fingerprint: "0002-A-2-Z",
groupSize: 5,
recencyThreshold: 1 * time.Hour,
lastCurated: testInstant.Add(-1 * 90 * time.Minute),
},
// This rule should effectively be ignored.
curationState{
fingerprint: "0002-A-2-Z",
groupSize: 2,
recencyThreshold: 30 * time.Minute,
lastCurated: testInstant.Add(-1 * 90 * time.Minute),
},
},
watermarkStates: fixture.Pairs{
watermarkState{
fingerprint: "0001-A-1-Z",
lastAppended: testInstant.Add(-1 * 15 * time.Minute),
},
watermarkState{
fingerprint: "0002-A-2-Z",
lastAppended: testInstant.Add(-1 * 15 * time.Minute),
},
},
sampleGroups: fixture.Pairs{
sampleGroup{
fingerprint: "0001-A-1-Z",
values: []sample{
{
time: testInstant.Add(-1 * 90 * time.Minute),
value: 0,
},
{
time: testInstant.Add(-1 * 85 * time.Minute),
value: 1,
},
{
time: testInstant.Add(-1 * 80 * time.Minute),
value: 2,
},
{
time: testInstant.Add(-1 * 75 * time.Minute),
value: 3,
},
{
time: testInstant.Add(-1 * 70 * time.Minute),
value: 4,
},
},
},
sampleGroup{
fingerprint: "0001-A-1-Z",
values: []sample{
{
time: testInstant.Add(-1 * 65 * time.Minute),
value: 0,
},
{
time: testInstant.Add(-1 * 60 * time.Minute),
value: 1,
},
{
time: testInstant.Add(-1 * 55 * time.Minute),
value: 2,
},
{
time: testInstant.Add(-1 * 50 * time.Minute),
value: 3,
},
{
time: testInstant.Add(-1 * 45 * time.Minute),
value: 4,
},
},
},
sampleGroup{
fingerprint: "0001-A-1-Z",
values: []sample{
{
time: testInstant.Add(-1 * 40 * time.Minute),
value: 0,
},
{
time: testInstant.Add(-1 * 35 * time.Minute),
value: 1,
},
{
time: testInstant.Add(-1 * 30 * time.Minute),
value: 2,
},
},
},
sampleGroup{
fingerprint: "0001-A-1-Z",
values: []sample{
{
time: testInstant.Add(-1 * 25 * time.Minute),
value: 0,
},
},
},
sampleGroup{
fingerprint: "0001-A-1-Z",
values: []sample{
{
time: testInstant.Add(-1 * 35 * time.Minute),
value: 1,
},
},
},
sampleGroup{
fingerprint: "0001-A-1-Z",
values: []sample{
{
time: testInstant.Add(-1 * 30 * time.Minute),
value: 2,
},
},
},
sampleGroup{
fingerprint: "0002-A-2-Z",
values: []sample{
{
time: testInstant.Add(-1 * 90 * time.Minute),
value: 0,
},
},
},
sampleGroup{
fingerprint: "0002-A-2-Z",
values: []sample{
{
time: testInstant.Add(-1 * 89 * time.Minute),
value: 1,
},
},
},
sampleGroup{
fingerprint: "0002-A-2-Z",
values: []sample{
{
time: testInstant.Add(-1 * 88 * time.Minute),
value: 2,
},
},
},
sampleGroup{
fingerprint: "0002-A-2-Z",
values: []sample{
{
time: testInstant.Add(-1 * 87 * time.Minute),
value: 3,
},
},
},
sampleGroup{
fingerprint: "0002-A-2-Z",
values: []sample{
{
time: testInstant.Add(-1 * 86 * time.Minute),
value: 4,
},
},
},
sampleGroup{
fingerprint: "0002-A-2-Z",
values: []sample{
{
time: testInstant.Add(-1 * 85 * time.Minute),
value: 5,
},
},
},
sampleGroup{
fingerprint: "0002-A-2-Z",
values: []sample{
{
time: testInstant.Add(-1 * 84 * time.Minute),
value: 6,
},
},
},
sampleGroup{
fingerprint: "0002-A-2-Z",
values: []sample{
{
time: testInstant.Add(-1 * 83 * time.Minute),
value: 7,
},
},
},
sampleGroup{
fingerprint: "0002-A-2-Z",
values: []sample{
{
time: testInstant.Add(-1 * 82 * time.Minute),
value: 8,
},
},
},
sampleGroup{
fingerprint: "0002-A-2-Z",
values: []sample{
{
time: testInstant.Add(-1 * 81 * time.Minute),
value: 9,
},
},
},
sampleGroup{
fingerprint: "0002-A-2-Z",
values: []sample{
{
time: testInstant.Add(-1 * 80 * time.Minute),
value: 10,
},
},
},
sampleGroup{
fingerprint: "0002-A-2-Z",
values: []sample{
{
time: testInstant.Add(-1 * 79 * time.Minute),
value: 11,
},
},
},
sampleGroup{
fingerprint: "0002-A-2-Z",
values: []sample{
{
time: testInstant.Add(-1 * 78 * time.Minute),
value: 12,
},
},
},
sampleGroup{
fingerprint: "0002-A-2-Z",
values: []sample{
{
time: testInstant.Add(-1 * 77 * time.Minute),
value: 13,
},
},
},
sampleGroup{
fingerprint: "0002-A-2-Z",
values: []sample{
{
time: testInstant.Add(-1 * 76 * time.Minute),
value: 14,
},
{
time: testInstant.Add(-1 * 75 * time.Minute),
value: 15,
},
{
time: testInstant.Add(-1 * 74 * time.Minute),
value: 16,
},
{
time: testInstant.Add(-1 * 73 * time.Minute),
value: 17,
},
{
time: testInstant.Add(-1 * 72 * time.Minute),
value: 18,
},
{
time: testInstant.Add(-1 * 71 * time.Minute),
value: 19,
},
{
time: testInstant.Add(-1 * 70 * time.Minute),
value: 20,
},
},
},
sampleGroup{
fingerprint: "0002-A-2-Z",
values: []sample{
{
time: testInstant.Add(-1 * 69 * time.Minute),
value: 21,
},
},
},
sampleGroup{
fingerprint: "0002-A-2-Z",
values: []sample{
{
time: testInstant.Add(-1 * 68 * time.Minute),
value: 22,
},
},
},
sampleGroup{
fingerprint: "0002-A-2-Z",
values: []sample{
{
time: testInstant.Add(-1 * 67 * time.Minute),
value: 23,
},
},
},
sampleGroup{
fingerprint: "0002-A-2-Z",
values: []sample{
{
time: testInstant.Add(-1 * 66 * time.Minute),
value: 24,
},
},
},
sampleGroup{
fingerprint: "0002-A-2-Z",
values: []sample{
{
time: testInstant.Add(-1 * 65 * time.Minute),
value: 25,
},
},
},
sampleGroup{
fingerprint: "0002-A-2-Z",
values: []sample{
{
time: testInstant.Add(-1 * 64 * time.Minute),
value: 26,
},
},
},
sampleGroup{
fingerprint: "0002-A-2-Z",
values: []sample{
{
time: testInstant.Add(-1 * 63 * time.Minute),
value: 27,
},
},
},
sampleGroup{
fingerprint: "0002-A-2-Z",
values: []sample{
{
time: testInstant.Add(-1 * 62 * time.Minute),
value: 28,
},
},
},
sampleGroup{
fingerprint: "0002-A-2-Z",
values: []sample{
{
time: testInstant.Add(-1 * 61 * time.Minute),
value: 29,
},
},
},
sampleGroup{
fingerprint: "0002-A-2-Z",
values: []sample{
{
time: testInstant.Add(-1 * 60 * time.Minute),
value: 30,
},
},
},
},
},
},
}
)
for _, scenario := range scenarios {
curatorDirectory := fixture.NewPreparer(t).Prepare("curator", fixture.NewCassetteFactory(scenario.in.curationStates))
defer curatorDirectory.Close()
watermarkDirectory := fixture.NewPreparer(t).Prepare("watermark", fixture.NewCassetteFactory(scenario.in.watermarkStates))
defer watermarkDirectory.Close()
sampleDirectory := fixture.NewPreparer(t).Prepare("sample", fixture.NewCassetteFactory(scenario.in.sampleGroups))
defer sampleDirectory.Close()
curatorStates, err := leveldb.NewLevelDBPersistence(curatorDirectory.Path(), 0, 0)
if err != nil {
t.Fatal(err)
}
defer curatorStates.Close()
watermarkStates, err := leveldb.NewLevelDBPersistence(watermarkDirectory.Path(), 0, 0)
if err != nil {
t.Fatal(err)
}
defer watermarkStates.Close()
samples, err := leveldb.NewLevelDBPersistence(sampleDirectory.Path(), 0, 0)
if err != nil {
t.Fatal(err)
}
defer samples.Close()
c := newCurator(scenario.in.recencyThreshold, scenario.in.groupSize, curatorStates, samples, watermarkStates)
c.run(testInstant)
}
}