mirror of https://github.com/prometheus/prometheus
388 lines
11 KiB
Go
388 lines
11 KiB
Go
// Copyright 2018 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 record
|
|
|
|
import (
|
|
"math/rand"
|
|
"testing"
|
|
|
|
"github.com/stretchr/testify/require"
|
|
|
|
"github.com/prometheus/prometheus/model/histogram"
|
|
"github.com/prometheus/prometheus/model/labels"
|
|
"github.com/prometheus/prometheus/tsdb/encoding"
|
|
"github.com/prometheus/prometheus/tsdb/tombstones"
|
|
"github.com/prometheus/prometheus/util/testutil"
|
|
)
|
|
|
|
func TestRecord_EncodeDecode(t *testing.T) {
|
|
var enc Encoder
|
|
dec := NewDecoder(labels.NewSymbolTable())
|
|
|
|
series := []RefSeries{
|
|
{
|
|
Ref: 100,
|
|
Labels: labels.FromStrings("abc", "def", "123", "456"),
|
|
}, {
|
|
Ref: 1,
|
|
Labels: labels.FromStrings("abc", "def2", "1234", "4567"),
|
|
}, {
|
|
Ref: 435245,
|
|
Labels: labels.FromStrings("xyz", "def", "foo", "bar"),
|
|
},
|
|
}
|
|
decSeries, err := dec.Series(enc.Series(series, nil), nil)
|
|
require.NoError(t, err)
|
|
testutil.RequireEqual(t, series, decSeries)
|
|
|
|
metadata := []RefMetadata{
|
|
{
|
|
Ref: 100,
|
|
Type: uint8(Counter),
|
|
Unit: "",
|
|
Help: "some magic counter",
|
|
},
|
|
{
|
|
Ref: 1,
|
|
Type: uint8(Counter),
|
|
Unit: "seconds",
|
|
Help: "CPU time counter",
|
|
},
|
|
{
|
|
Ref: 147741,
|
|
Type: uint8(Gauge),
|
|
Unit: "percentage",
|
|
Help: "current memory usage",
|
|
},
|
|
}
|
|
decMetadata, err := dec.Metadata(enc.Metadata(metadata, nil), nil)
|
|
require.NoError(t, err)
|
|
require.Equal(t, metadata, decMetadata)
|
|
|
|
samples := []RefSample{
|
|
{Ref: 0, T: 12423423, V: 1.2345},
|
|
{Ref: 123, T: -1231, V: -123},
|
|
{Ref: 2, T: 0, V: 99999},
|
|
}
|
|
decSamples, err := dec.Samples(enc.Samples(samples, nil), nil)
|
|
require.NoError(t, err)
|
|
require.Equal(t, samples, decSamples)
|
|
|
|
// Intervals get split up into single entries. So we don't get back exactly
|
|
// what we put in.
|
|
tstones := []tombstones.Stone{
|
|
{Ref: 123, Intervals: tombstones.Intervals{
|
|
{Mint: -1000, Maxt: 1231231},
|
|
{Mint: 5000, Maxt: 0},
|
|
}},
|
|
{Ref: 13, Intervals: tombstones.Intervals{
|
|
{Mint: -1000, Maxt: -11},
|
|
{Mint: 5000, Maxt: 1000},
|
|
}},
|
|
}
|
|
decTstones, err := dec.Tombstones(enc.Tombstones(tstones, nil), nil)
|
|
require.NoError(t, err)
|
|
require.Equal(t, []tombstones.Stone{
|
|
{Ref: 123, Intervals: tombstones.Intervals{{Mint: -1000, Maxt: 1231231}}},
|
|
{Ref: 123, Intervals: tombstones.Intervals{{Mint: 5000, Maxt: 0}}},
|
|
{Ref: 13, Intervals: tombstones.Intervals{{Mint: -1000, Maxt: -11}}},
|
|
{Ref: 13, Intervals: tombstones.Intervals{{Mint: 5000, Maxt: 1000}}},
|
|
}, decTstones)
|
|
|
|
exemplars := []RefExemplar{
|
|
{Ref: 0, T: 12423423, V: 1.2345, Labels: labels.FromStrings("trace_id", "qwerty")},
|
|
{Ref: 123, T: -1231, V: -123, Labels: labels.FromStrings("trace_id", "asdf")},
|
|
{Ref: 2, T: 0, V: 99999, Labels: labels.FromStrings("trace_id", "zxcv")},
|
|
}
|
|
decExemplars, err := dec.Exemplars(enc.Exemplars(exemplars, nil), nil)
|
|
require.NoError(t, err)
|
|
testutil.RequireEqual(t, exemplars, decExemplars)
|
|
|
|
histograms := []RefHistogramSample{
|
|
{
|
|
Ref: 56,
|
|
T: 1234,
|
|
H: &histogram.Histogram{
|
|
Count: 5,
|
|
ZeroCount: 2,
|
|
ZeroThreshold: 0.001,
|
|
Sum: 18.4 * rand.Float64(),
|
|
Schema: 1,
|
|
PositiveSpans: []histogram.Span{
|
|
{Offset: 0, Length: 2},
|
|
{Offset: 1, Length: 2},
|
|
},
|
|
PositiveBuckets: []int64{1, 1, -1, 0},
|
|
},
|
|
},
|
|
{
|
|
Ref: 42,
|
|
T: 5678,
|
|
H: &histogram.Histogram{
|
|
Count: 11,
|
|
ZeroCount: 4,
|
|
ZeroThreshold: 0.001,
|
|
Sum: 35.5,
|
|
Schema: 1,
|
|
PositiveSpans: []histogram.Span{
|
|
{Offset: 0, Length: 2},
|
|
{Offset: 2, Length: 2},
|
|
},
|
|
PositiveBuckets: []int64{1, 1, -1, 0},
|
|
NegativeSpans: []histogram.Span{
|
|
{Offset: 0, Length: 1},
|
|
{Offset: 1, Length: 2},
|
|
},
|
|
NegativeBuckets: []int64{1, 2, -1},
|
|
},
|
|
},
|
|
}
|
|
|
|
decHistograms, err := dec.HistogramSamples(enc.HistogramSamples(histograms, nil), nil)
|
|
require.NoError(t, err)
|
|
require.Equal(t, histograms, decHistograms)
|
|
|
|
floatHistograms := make([]RefFloatHistogramSample, len(histograms))
|
|
for i, h := range histograms {
|
|
floatHistograms[i] = RefFloatHistogramSample{
|
|
Ref: h.Ref,
|
|
T: h.T,
|
|
FH: h.H.ToFloat(nil),
|
|
}
|
|
}
|
|
decFloatHistograms, err := dec.FloatHistogramSamples(enc.FloatHistogramSamples(floatHistograms, nil), nil)
|
|
require.NoError(t, err)
|
|
require.Equal(t, floatHistograms, decFloatHistograms)
|
|
|
|
// Gauge integer histograms.
|
|
for i := range histograms {
|
|
histograms[i].H.CounterResetHint = histogram.GaugeType
|
|
}
|
|
decHistograms, err = dec.HistogramSamples(enc.HistogramSamples(histograms, nil), nil)
|
|
require.NoError(t, err)
|
|
require.Equal(t, histograms, decHistograms)
|
|
|
|
// Gauge float histograms.
|
|
for i := range floatHistograms {
|
|
floatHistograms[i].FH.CounterResetHint = histogram.GaugeType
|
|
}
|
|
decFloatHistograms, err = dec.FloatHistogramSamples(enc.FloatHistogramSamples(floatHistograms, nil), nil)
|
|
require.NoError(t, err)
|
|
require.Equal(t, floatHistograms, decFloatHistograms)
|
|
}
|
|
|
|
// TestRecord_Corrupted ensures that corrupted records return the correct error.
|
|
// Bugfix check for pull/521 and pull/523.
|
|
func TestRecord_Corrupted(t *testing.T) {
|
|
var enc Encoder
|
|
dec := NewDecoder(labels.NewSymbolTable())
|
|
|
|
t.Run("Test corrupted series record", func(t *testing.T) {
|
|
series := []RefSeries{
|
|
{
|
|
Ref: 100,
|
|
Labels: labels.FromStrings("abc", "def", "123", "456"),
|
|
},
|
|
}
|
|
|
|
corrupted := enc.Series(series, nil)[:8]
|
|
_, err := dec.Series(corrupted, nil)
|
|
require.Equal(t, err, encoding.ErrInvalidSize)
|
|
})
|
|
|
|
t.Run("Test corrupted sample record", func(t *testing.T) {
|
|
samples := []RefSample{
|
|
{Ref: 0, T: 12423423, V: 1.2345},
|
|
}
|
|
|
|
corrupted := enc.Samples(samples, nil)[:8]
|
|
_, err := dec.Samples(corrupted, nil)
|
|
require.ErrorIs(t, err, encoding.ErrInvalidSize)
|
|
})
|
|
|
|
t.Run("Test corrupted tombstone record", func(t *testing.T) {
|
|
tstones := []tombstones.Stone{
|
|
{Ref: 123, Intervals: tombstones.Intervals{
|
|
{Mint: -1000, Maxt: 1231231},
|
|
{Mint: 5000, Maxt: 0},
|
|
}},
|
|
}
|
|
|
|
corrupted := enc.Tombstones(tstones, nil)[:8]
|
|
_, err := dec.Tombstones(corrupted, nil)
|
|
require.Equal(t, err, encoding.ErrInvalidSize)
|
|
})
|
|
|
|
t.Run("Test corrupted exemplar record", func(t *testing.T) {
|
|
exemplars := []RefExemplar{
|
|
{Ref: 0, T: 12423423, V: 1.2345, Labels: labels.FromStrings("trace_id", "asdf")},
|
|
}
|
|
|
|
corrupted := enc.Exemplars(exemplars, nil)[:8]
|
|
_, err := dec.Exemplars(corrupted, nil)
|
|
require.ErrorIs(t, err, encoding.ErrInvalidSize)
|
|
})
|
|
|
|
t.Run("Test corrupted metadata record", func(t *testing.T) {
|
|
meta := []RefMetadata{
|
|
{Ref: 147, Type: uint8(Counter), Unit: "unit", Help: "help"},
|
|
}
|
|
|
|
corrupted := enc.Metadata(meta, nil)[:8]
|
|
_, err := dec.Metadata(corrupted, nil)
|
|
require.ErrorIs(t, err, encoding.ErrInvalidSize)
|
|
})
|
|
|
|
t.Run("Test corrupted histogram record", func(t *testing.T) {
|
|
histograms := []RefHistogramSample{
|
|
{
|
|
Ref: 56,
|
|
T: 1234,
|
|
H: &histogram.Histogram{
|
|
Count: 5,
|
|
ZeroCount: 2,
|
|
ZeroThreshold: 0.001,
|
|
Sum: 18.4 * rand.Float64(),
|
|
Schema: 1,
|
|
PositiveSpans: []histogram.Span{
|
|
{Offset: 0, Length: 2},
|
|
{Offset: 1, Length: 2},
|
|
},
|
|
PositiveBuckets: []int64{1, 1, -1, 0},
|
|
},
|
|
},
|
|
}
|
|
|
|
corrupted := enc.HistogramSamples(histograms, nil)[:8]
|
|
_, err := dec.HistogramSamples(corrupted, nil)
|
|
require.ErrorIs(t, err, encoding.ErrInvalidSize)
|
|
})
|
|
}
|
|
|
|
func TestRecord_Type(t *testing.T) {
|
|
var enc Encoder
|
|
var dec Decoder
|
|
|
|
series := []RefSeries{{Ref: 100, Labels: labels.FromStrings("abc", "123")}}
|
|
recordType := dec.Type(enc.Series(series, nil))
|
|
require.Equal(t, Series, recordType)
|
|
|
|
samples := []RefSample{{Ref: 123, T: 12345, V: 1.2345}}
|
|
recordType = dec.Type(enc.Samples(samples, nil))
|
|
require.Equal(t, Samples, recordType)
|
|
|
|
tstones := []tombstones.Stone{{Ref: 1, Intervals: tombstones.Intervals{{Mint: 1, Maxt: 2}}}}
|
|
recordType = dec.Type(enc.Tombstones(tstones, nil))
|
|
require.Equal(t, Tombstones, recordType)
|
|
|
|
metadata := []RefMetadata{{Ref: 147, Type: uint8(Counter), Unit: "unit", Help: "help"}}
|
|
recordType = dec.Type(enc.Metadata(metadata, nil))
|
|
require.Equal(t, Metadata, recordType)
|
|
|
|
histograms := []RefHistogramSample{
|
|
{
|
|
Ref: 56,
|
|
T: 1234,
|
|
H: &histogram.Histogram{
|
|
Count: 5,
|
|
ZeroCount: 2,
|
|
ZeroThreshold: 0.001,
|
|
Sum: 18.4 * rand.Float64(),
|
|
Schema: 1,
|
|
PositiveSpans: []histogram.Span{
|
|
{Offset: 0, Length: 2},
|
|
{Offset: 1, Length: 2},
|
|
},
|
|
PositiveBuckets: []int64{1, 1, -1, 0},
|
|
},
|
|
},
|
|
}
|
|
recordType = dec.Type(enc.HistogramSamples(histograms, nil))
|
|
require.Equal(t, HistogramSamples, recordType)
|
|
|
|
recordType = dec.Type(nil)
|
|
require.Equal(t, Unknown, recordType)
|
|
|
|
recordType = dec.Type([]byte{0})
|
|
require.Equal(t, Unknown, recordType)
|
|
}
|
|
|
|
func TestRecord_MetadataDecodeUnknownExtraFields(t *testing.T) {
|
|
var enc encoding.Encbuf
|
|
var dec Decoder
|
|
|
|
// Write record type.
|
|
enc.PutByte(byte(Metadata))
|
|
|
|
// Write first metadata entry, all known fields.
|
|
enc.PutUvarint64(101)
|
|
enc.PutByte(byte(Counter))
|
|
enc.PutUvarint(2)
|
|
enc.PutUvarintStr(unitMetaName)
|
|
enc.PutUvarintStr("")
|
|
enc.PutUvarintStr(helpMetaName)
|
|
enc.PutUvarintStr("some magic counter")
|
|
|
|
// Write second metadata entry, known fields + unknown fields.
|
|
enc.PutUvarint64(99)
|
|
enc.PutByte(byte(Counter))
|
|
enc.PutUvarint(3)
|
|
// Known fields.
|
|
enc.PutUvarintStr(unitMetaName)
|
|
enc.PutUvarintStr("seconds")
|
|
enc.PutUvarintStr(helpMetaName)
|
|
enc.PutUvarintStr("CPU time counter")
|
|
// Unknown fields.
|
|
enc.PutUvarintStr("an extra field name to be skipped")
|
|
enc.PutUvarintStr("with its value")
|
|
|
|
// Write third metadata entry, with unknown fields and different order.
|
|
enc.PutUvarint64(47250)
|
|
enc.PutByte(byte(Gauge))
|
|
enc.PutUvarint(4)
|
|
enc.PutUvarintStr("extra name one")
|
|
enc.PutUvarintStr("extra value one")
|
|
enc.PutUvarintStr(helpMetaName)
|
|
enc.PutUvarintStr("current memory usage")
|
|
enc.PutUvarintStr("extra name two")
|
|
enc.PutUvarintStr("extra value two")
|
|
enc.PutUvarintStr(unitMetaName)
|
|
enc.PutUvarintStr("percentage")
|
|
|
|
// Should yield known fields for all entries and skip over unknown fields.
|
|
expectedMetadata := []RefMetadata{
|
|
{
|
|
Ref: 101,
|
|
Type: uint8(Counter),
|
|
Unit: "",
|
|
Help: "some magic counter",
|
|
}, {
|
|
Ref: 99,
|
|
Type: uint8(Counter),
|
|
Unit: "seconds",
|
|
Help: "CPU time counter",
|
|
}, {
|
|
Ref: 47250,
|
|
Type: uint8(Gauge),
|
|
Unit: "percentage",
|
|
Help: "current memory usage",
|
|
},
|
|
}
|
|
|
|
decMetadata, err := dec.Metadata(enc.Get(), nil)
|
|
require.NoError(t, err)
|
|
require.Equal(t, expectedMetadata, decMetadata)
|
|
}
|