mirror of
https://github.com/prometheus/prometheus.git
synced 2024-09-20 15:57:31 -07:00
c3c7d44d84
We haven't updated golint-ci in our CI yet, but this commit prepares for that. There are a lot of new warnings, and it is mostly because the "revive" linter got updated. I agree with most of the new warnings, mostly around not naming unused function parameters (although it is justified in some cases for documentation purposes – while things like mocks are a good example where not naming the parameter is clearer). I'm pretty upset about the "empty block" warning to include `for` loops. It's such a common pattern to do something in the head of the `for` loop and then have an empty block. There is still an open issue about this: https://github.com/mgechev/revive/issues/810 I have disabled "revive" altogether in files where empty blocks are used excessively, and I have made the effort to add individual `// nolint:revive` where empty blocks are used just once or twice. It's borderline noisy, though, but let's go with it for now. I should mention that none of the "empty block" warnings for `for` loop bodies were legitimate. Signed-off-by: beorn7 <beorn@grafana.com>
845 lines
22 KiB
Go
845 lines
22 KiB
Go
// Copyright 2017 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 remote
|
|
|
|
import (
|
|
"bytes"
|
|
"fmt"
|
|
"sync"
|
|
"testing"
|
|
|
|
"github.com/gogo/protobuf/proto"
|
|
"github.com/stretchr/testify/require"
|
|
|
|
"github.com/prometheus/prometheus/model/histogram"
|
|
"github.com/prometheus/prometheus/model/labels"
|
|
"github.com/prometheus/prometheus/model/textparse"
|
|
"github.com/prometheus/prometheus/prompb"
|
|
"github.com/prometheus/prometheus/storage"
|
|
"github.com/prometheus/prometheus/tsdb/chunkenc"
|
|
"github.com/prometheus/prometheus/tsdb/chunks"
|
|
"github.com/prometheus/prometheus/tsdb/tsdbutil"
|
|
)
|
|
|
|
var testHistogram = histogram.Histogram{
|
|
Schema: 2,
|
|
ZeroThreshold: 1e-128,
|
|
ZeroCount: 0,
|
|
Count: 0,
|
|
Sum: 20,
|
|
PositiveSpans: []histogram.Span{{Offset: 0, Length: 1}},
|
|
PositiveBuckets: []int64{1},
|
|
NegativeSpans: []histogram.Span{{Offset: 0, Length: 1}},
|
|
NegativeBuckets: []int64{-1},
|
|
}
|
|
|
|
var writeRequestFixture = &prompb.WriteRequest{
|
|
Timeseries: []prompb.TimeSeries{
|
|
{
|
|
Labels: []prompb.Label{
|
|
{Name: "__name__", Value: "test_metric1"},
|
|
{Name: "b", Value: "c"},
|
|
{Name: "baz", Value: "qux"},
|
|
{Name: "d", Value: "e"},
|
|
{Name: "foo", Value: "bar"},
|
|
},
|
|
Samples: []prompb.Sample{{Value: 1, Timestamp: 0}},
|
|
Exemplars: []prompb.Exemplar{{Labels: []prompb.Label{{Name: "f", Value: "g"}}, Value: 1, Timestamp: 0}},
|
|
Histograms: []prompb.Histogram{HistogramToHistogramProto(0, &testHistogram), FloatHistogramToHistogramProto(1, testHistogram.ToFloat())},
|
|
},
|
|
{
|
|
Labels: []prompb.Label{
|
|
{Name: "__name__", Value: "test_metric1"},
|
|
{Name: "b", Value: "c"},
|
|
{Name: "baz", Value: "qux"},
|
|
{Name: "d", Value: "e"},
|
|
{Name: "foo", Value: "bar"},
|
|
},
|
|
Samples: []prompb.Sample{{Value: 2, Timestamp: 1}},
|
|
Exemplars: []prompb.Exemplar{{Labels: []prompb.Label{{Name: "h", Value: "i"}}, Value: 2, Timestamp: 1}},
|
|
Histograms: []prompb.Histogram{HistogramToHistogramProto(2, &testHistogram), FloatHistogramToHistogramProto(3, testHistogram.ToFloat())},
|
|
},
|
|
},
|
|
}
|
|
|
|
func TestValidateLabelsAndMetricName(t *testing.T) {
|
|
tests := []struct {
|
|
input []prompb.Label
|
|
expectedErr string
|
|
description string
|
|
}{
|
|
{
|
|
input: []prompb.Label{
|
|
{Name: "__name__", Value: "name"},
|
|
{Name: "labelName", Value: "labelValue"},
|
|
},
|
|
expectedErr: "",
|
|
description: "regular labels",
|
|
},
|
|
{
|
|
input: []prompb.Label{
|
|
{Name: "__name__", Value: "name"},
|
|
{Name: "_labelName", Value: "labelValue"},
|
|
},
|
|
expectedErr: "",
|
|
description: "label name with _",
|
|
},
|
|
{
|
|
input: []prompb.Label{
|
|
{Name: "__name__", Value: "name"},
|
|
{Name: "@labelName", Value: "labelValue"},
|
|
},
|
|
expectedErr: "invalid label name: @labelName",
|
|
description: "label name with @",
|
|
},
|
|
{
|
|
input: []prompb.Label{
|
|
{Name: "__name__", Value: "name"},
|
|
{Name: "123labelName", Value: "labelValue"},
|
|
},
|
|
expectedErr: "invalid label name: 123labelName",
|
|
description: "label name starts with numbers",
|
|
},
|
|
{
|
|
input: []prompb.Label{
|
|
{Name: "__name__", Value: "name"},
|
|
{Name: "", Value: "labelValue"},
|
|
},
|
|
expectedErr: "invalid label name: ",
|
|
description: "label name is empty string",
|
|
},
|
|
{
|
|
input: []prompb.Label{
|
|
{Name: "__name__", Value: "name"},
|
|
{Name: "labelName", Value: string([]byte{0xff})},
|
|
},
|
|
expectedErr: "invalid label value: " + string([]byte{0xff}),
|
|
description: "label value is an invalid UTF-8 value",
|
|
},
|
|
{
|
|
input: []prompb.Label{
|
|
{Name: "__name__", Value: "@invalid_name"},
|
|
},
|
|
expectedErr: "invalid metric name: @invalid_name",
|
|
description: "metric name starts with @",
|
|
},
|
|
{
|
|
input: []prompb.Label{
|
|
{Name: "__name__", Value: "name1"},
|
|
{Name: "__name__", Value: "name2"},
|
|
},
|
|
expectedErr: "duplicate label with name: __name__",
|
|
description: "duplicate label names",
|
|
},
|
|
{
|
|
input: []prompb.Label{
|
|
{Name: "label1", Value: "name"},
|
|
{Name: "label2", Value: "name"},
|
|
},
|
|
expectedErr: "",
|
|
description: "duplicate label values",
|
|
},
|
|
{
|
|
input: []prompb.Label{
|
|
{Name: "", Value: "name"},
|
|
{Name: "label2", Value: "name"},
|
|
},
|
|
expectedErr: "invalid label name: ",
|
|
description: "don't report as duplicate label name",
|
|
},
|
|
}
|
|
|
|
for _, test := range tests {
|
|
t.Run(test.description, func(t *testing.T) {
|
|
err := validateLabelsAndMetricName(test.input)
|
|
if test.expectedErr != "" {
|
|
require.Error(t, err)
|
|
require.Equal(t, test.expectedErr, err.Error())
|
|
} else {
|
|
require.NoError(t, err)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestConcreteSeriesSet(t *testing.T) {
|
|
series1 := &concreteSeries{
|
|
labels: labels.FromStrings("foo", "bar"),
|
|
floats: []prompb.Sample{{Value: 1, Timestamp: 2}},
|
|
}
|
|
series2 := &concreteSeries{
|
|
labels: labels.FromStrings("foo", "baz"),
|
|
floats: []prompb.Sample{{Value: 3, Timestamp: 4}},
|
|
}
|
|
c := &concreteSeriesSet{
|
|
series: []storage.Series{series1, series2},
|
|
}
|
|
require.True(t, c.Next(), "Expected Next() to be true.")
|
|
require.Equal(t, series1, c.At(), "Unexpected series returned.")
|
|
require.True(t, c.Next(), "Expected Next() to be true.")
|
|
require.Equal(t, series2, c.At(), "Unexpected series returned.")
|
|
require.False(t, c.Next(), "Expected Next() to be false.")
|
|
}
|
|
|
|
func TestConcreteSeriesClonesLabels(t *testing.T) {
|
|
lbls := labels.FromStrings("a", "b", "c", "d")
|
|
cs := concreteSeries{
|
|
labels: lbls,
|
|
}
|
|
|
|
gotLabels := cs.Labels()
|
|
require.Equal(t, lbls, gotLabels)
|
|
|
|
gotLabels.CopyFrom(labels.FromStrings("a", "foo", "c", "foo"))
|
|
|
|
gotLabels = cs.Labels()
|
|
require.Equal(t, lbls, gotLabels)
|
|
}
|
|
|
|
func TestConcreteSeriesIterator_FloatSamples(t *testing.T) {
|
|
series := &concreteSeries{
|
|
labels: labels.FromStrings("foo", "bar"),
|
|
floats: []prompb.Sample{
|
|
{Value: 1, Timestamp: 1},
|
|
{Value: 1.5, Timestamp: 1},
|
|
{Value: 2, Timestamp: 2},
|
|
{Value: 3, Timestamp: 3},
|
|
{Value: 4, Timestamp: 4},
|
|
},
|
|
}
|
|
it := series.Iterator(nil)
|
|
|
|
// Seek to the first sample with ts=1.
|
|
require.Equal(t, chunkenc.ValFloat, it.Seek(1))
|
|
ts, v := it.At()
|
|
require.Equal(t, int64(1), ts)
|
|
require.Equal(t, 1., v)
|
|
|
|
// Seek one further, next sample still has ts=1.
|
|
require.Equal(t, chunkenc.ValFloat, it.Next())
|
|
ts, v = it.At()
|
|
require.Equal(t, int64(1), ts)
|
|
require.Equal(t, 1.5, v)
|
|
|
|
// Seek again to 1 and make sure we stay where we are.
|
|
require.Equal(t, chunkenc.ValFloat, it.Seek(1))
|
|
ts, v = it.At()
|
|
require.Equal(t, int64(1), ts)
|
|
require.Equal(t, 1.5, v)
|
|
|
|
// Another seek.
|
|
require.Equal(t, chunkenc.ValFloat, it.Seek(3))
|
|
ts, v = it.At()
|
|
require.Equal(t, int64(3), ts)
|
|
require.Equal(t, 3., v)
|
|
|
|
// And we don't go back.
|
|
require.Equal(t, chunkenc.ValFloat, it.Seek(2))
|
|
ts, v = it.At()
|
|
require.Equal(t, int64(3), ts)
|
|
require.Equal(t, 3., v)
|
|
|
|
// Seek beyond the end.
|
|
require.Equal(t, chunkenc.ValNone, it.Seek(5))
|
|
// And we don't go back. (This exposes issue #10027.)
|
|
require.Equal(t, chunkenc.ValNone, it.Seek(2))
|
|
}
|
|
|
|
func TestConcreteSeriesIterator_HistogramSamples(t *testing.T) {
|
|
histograms := tsdbutil.GenerateTestHistograms(5)
|
|
histProtos := make([]prompb.Histogram, len(histograms))
|
|
for i, h := range histograms {
|
|
// Results in ts sequence of 1, 1, 2, 3, 4.
|
|
var ts int64
|
|
if i == 0 {
|
|
ts = 1
|
|
} else {
|
|
ts = int64(i)
|
|
}
|
|
histProtos[i] = HistogramToHistogramProto(ts, h)
|
|
}
|
|
series := &concreteSeries{
|
|
labels: labels.FromStrings("foo", "bar"),
|
|
histograms: histProtos,
|
|
}
|
|
it := series.Iterator(nil)
|
|
|
|
// Seek to the first sample with ts=1.
|
|
require.Equal(t, chunkenc.ValHistogram, it.Seek(1))
|
|
ts, v := it.AtHistogram()
|
|
require.Equal(t, int64(1), ts)
|
|
require.Equal(t, histograms[0], v)
|
|
|
|
// Seek one further, next sample still has ts=1.
|
|
require.Equal(t, chunkenc.ValHistogram, it.Next())
|
|
ts, v = it.AtHistogram()
|
|
require.Equal(t, int64(1), ts)
|
|
require.Equal(t, histograms[1], v)
|
|
|
|
// Seek again to 1 and make sure we stay where we are.
|
|
require.Equal(t, chunkenc.ValHistogram, it.Seek(1))
|
|
ts, v = it.AtHistogram()
|
|
require.Equal(t, int64(1), ts)
|
|
require.Equal(t, histograms[1], v)
|
|
|
|
// Another seek.
|
|
require.Equal(t, chunkenc.ValHistogram, it.Seek(3))
|
|
ts, v = it.AtHistogram()
|
|
require.Equal(t, int64(3), ts)
|
|
require.Equal(t, histograms[3], v)
|
|
|
|
// And we don't go back.
|
|
require.Equal(t, chunkenc.ValHistogram, it.Seek(2))
|
|
ts, v = it.AtHistogram()
|
|
require.Equal(t, int64(3), ts)
|
|
require.Equal(t, histograms[3], v)
|
|
|
|
// Seek beyond the end.
|
|
require.Equal(t, chunkenc.ValNone, it.Seek(5))
|
|
// And we don't go back. (This exposes issue #10027.)
|
|
require.Equal(t, chunkenc.ValNone, it.Seek(2))
|
|
}
|
|
|
|
func TestConcreteSeriesIterator_FloatAndHistogramSamples(t *testing.T) {
|
|
// Series starts as histograms, then transitions to floats at ts=8 (with an overlap from ts=8 to ts=10), then
|
|
// transitions back to histograms at ts=16.
|
|
histograms := tsdbutil.GenerateTestHistograms(15)
|
|
histProtos := make([]prompb.Histogram, len(histograms))
|
|
for i, h := range histograms {
|
|
if i < 10 {
|
|
histProtos[i] = HistogramToHistogramProto(int64(i+1), h)
|
|
} else {
|
|
histProtos[i] = HistogramToHistogramProto(int64(i+6), h)
|
|
}
|
|
}
|
|
series := &concreteSeries{
|
|
labels: labels.FromStrings("foo", "bar"),
|
|
floats: []prompb.Sample{
|
|
{Value: 1, Timestamp: 8},
|
|
{Value: 2, Timestamp: 9},
|
|
{Value: 3, Timestamp: 10},
|
|
{Value: 4, Timestamp: 11},
|
|
{Value: 5, Timestamp: 12},
|
|
{Value: 6, Timestamp: 13},
|
|
{Value: 7, Timestamp: 14},
|
|
{Value: 8, Timestamp: 15},
|
|
},
|
|
histograms: histProtos,
|
|
}
|
|
it := series.Iterator(nil)
|
|
|
|
var (
|
|
ts int64
|
|
v float64
|
|
h *histogram.Histogram
|
|
fh *histogram.FloatHistogram
|
|
)
|
|
require.Equal(t, chunkenc.ValHistogram, it.Next())
|
|
ts, h = it.AtHistogram()
|
|
require.Equal(t, int64(1), ts)
|
|
require.Equal(t, histograms[0], h)
|
|
|
|
require.Equal(t, chunkenc.ValHistogram, it.Next())
|
|
ts, h = it.AtHistogram()
|
|
require.Equal(t, int64(2), ts)
|
|
require.Equal(t, histograms[1], h)
|
|
|
|
// Seek to the first float/histogram sample overlap at ts=8 (should prefer the float sample).
|
|
require.Equal(t, chunkenc.ValFloat, it.Seek(8))
|
|
ts, v = it.At()
|
|
require.Equal(t, int64(8), ts)
|
|
require.Equal(t, 1., v)
|
|
|
|
// Attempting to seek backwards should do nothing.
|
|
require.Equal(t, chunkenc.ValFloat, it.Seek(1))
|
|
ts, v = it.At()
|
|
require.Equal(t, int64(8), ts)
|
|
require.Equal(t, 1., v)
|
|
|
|
// Seeking to 8 again should also do nothing.
|
|
require.Equal(t, chunkenc.ValFloat, it.Seek(8))
|
|
ts, v = it.At()
|
|
require.Equal(t, int64(8), ts)
|
|
require.Equal(t, 1., v)
|
|
|
|
// Again, should prefer the float sample.
|
|
require.Equal(t, chunkenc.ValFloat, it.Next())
|
|
ts, v = it.At()
|
|
require.Equal(t, int64(9), ts)
|
|
require.Equal(t, 2., v)
|
|
|
|
// Seek to ts=11 where there are only float samples.
|
|
require.Equal(t, chunkenc.ValFloat, it.Seek(11))
|
|
ts, v = it.At()
|
|
require.Equal(t, int64(11), ts)
|
|
require.Equal(t, 4., v)
|
|
|
|
// Seek to ts=15 right before the transition back to histogram samples.
|
|
require.Equal(t, chunkenc.ValFloat, it.Seek(15))
|
|
ts, v = it.At()
|
|
require.Equal(t, int64(15), ts)
|
|
require.Equal(t, 8., v)
|
|
|
|
require.Equal(t, chunkenc.ValHistogram, it.Next())
|
|
ts, h = it.AtHistogram()
|
|
require.Equal(t, int64(16), ts)
|
|
require.Equal(t, histograms[10], h)
|
|
|
|
// Getting a float histogram from an int histogram works.
|
|
require.Equal(t, chunkenc.ValHistogram, it.Next())
|
|
ts, fh = it.AtFloatHistogram()
|
|
require.Equal(t, int64(17), ts)
|
|
expected := HistogramProtoToFloatHistogram(HistogramToHistogramProto(int64(17), histograms[11]))
|
|
require.Equal(t, expected, fh)
|
|
|
|
// Keep calling Next() until the end.
|
|
for i := 0; i < 3; i++ {
|
|
require.Equal(t, chunkenc.ValHistogram, it.Next())
|
|
}
|
|
|
|
// The iterator is exhausted.
|
|
require.Equal(t, chunkenc.ValNone, it.Next())
|
|
require.Equal(t, chunkenc.ValNone, it.Next())
|
|
// Should also not be able to seek backwards again.
|
|
require.Equal(t, chunkenc.ValNone, it.Seek(1))
|
|
}
|
|
|
|
func TestFromQueryResultWithDuplicates(t *testing.T) {
|
|
ts1 := prompb.TimeSeries{
|
|
Labels: []prompb.Label{
|
|
{Name: "foo", Value: "bar"},
|
|
{Name: "foo", Value: "def"},
|
|
},
|
|
Samples: []prompb.Sample{
|
|
{Value: 0.0, Timestamp: 0},
|
|
},
|
|
}
|
|
|
|
res := prompb.QueryResult{
|
|
Timeseries: []*prompb.TimeSeries{
|
|
&ts1,
|
|
},
|
|
}
|
|
|
|
series := FromQueryResult(false, &res)
|
|
|
|
errSeries, isErrSeriesSet := series.(errSeriesSet)
|
|
|
|
require.True(t, isErrSeriesSet, "Expected resulting series to be an errSeriesSet")
|
|
errMessage := errSeries.Err().Error()
|
|
require.Equal(t, "duplicate label with name: foo", errMessage, fmt.Sprintf("Expected error to be from duplicate label, but got: %s", errMessage))
|
|
}
|
|
|
|
func TestNegotiateResponseType(t *testing.T) {
|
|
r, err := NegotiateResponseType([]prompb.ReadRequest_ResponseType{
|
|
prompb.ReadRequest_STREAMED_XOR_CHUNKS,
|
|
prompb.ReadRequest_SAMPLES,
|
|
})
|
|
require.NoError(t, err)
|
|
require.Equal(t, prompb.ReadRequest_STREAMED_XOR_CHUNKS, r)
|
|
|
|
r2, err := NegotiateResponseType([]prompb.ReadRequest_ResponseType{
|
|
prompb.ReadRequest_SAMPLES,
|
|
prompb.ReadRequest_STREAMED_XOR_CHUNKS,
|
|
})
|
|
require.NoError(t, err)
|
|
require.Equal(t, prompb.ReadRequest_SAMPLES, r2)
|
|
|
|
r3, err := NegotiateResponseType([]prompb.ReadRequest_ResponseType{})
|
|
require.NoError(t, err)
|
|
require.Equal(t, prompb.ReadRequest_SAMPLES, r3)
|
|
|
|
_, err = NegotiateResponseType([]prompb.ReadRequest_ResponseType{20})
|
|
require.Error(t, err, "expected error due to not supported requested response types")
|
|
require.Equal(t, "server does not support any of the requested response types: [20]; supported: map[SAMPLES:{} STREAMED_XOR_CHUNKS:{}]", err.Error())
|
|
}
|
|
|
|
func TestMergeLabels(t *testing.T) {
|
|
for _, tc := range []struct {
|
|
primary, secondary, expected []prompb.Label
|
|
}{
|
|
{
|
|
primary: []prompb.Label{{Name: "aaa", Value: "foo"}, {Name: "bbb", Value: "foo"}, {Name: "ddd", Value: "foo"}},
|
|
secondary: []prompb.Label{{Name: "bbb", Value: "bar"}, {Name: "ccc", Value: "bar"}},
|
|
expected: []prompb.Label{{Name: "aaa", Value: "foo"}, {Name: "bbb", Value: "foo"}, {Name: "ccc", Value: "bar"}, {Name: "ddd", Value: "foo"}},
|
|
},
|
|
{
|
|
primary: []prompb.Label{{Name: "bbb", Value: "bar"}, {Name: "ccc", Value: "bar"}},
|
|
secondary: []prompb.Label{{Name: "aaa", Value: "foo"}, {Name: "bbb", Value: "foo"}, {Name: "ddd", Value: "foo"}},
|
|
expected: []prompb.Label{{Name: "aaa", Value: "foo"}, {Name: "bbb", Value: "bar"}, {Name: "ccc", Value: "bar"}, {Name: "ddd", Value: "foo"}},
|
|
},
|
|
} {
|
|
require.Equal(t, tc.expected, MergeLabels(tc.primary, tc.secondary))
|
|
}
|
|
}
|
|
|
|
func TestMetricTypeToMetricTypeProto(t *testing.T) {
|
|
tc := []struct {
|
|
desc string
|
|
input textparse.MetricType
|
|
expected prompb.MetricMetadata_MetricType
|
|
}{
|
|
{
|
|
desc: "with a single-word metric",
|
|
input: textparse.MetricTypeCounter,
|
|
expected: prompb.MetricMetadata_COUNTER,
|
|
},
|
|
{
|
|
desc: "with a two-word metric",
|
|
input: textparse.MetricTypeStateset,
|
|
expected: prompb.MetricMetadata_STATESET,
|
|
},
|
|
{
|
|
desc: "with an unknown metric",
|
|
input: "not-known",
|
|
expected: prompb.MetricMetadata_UNKNOWN,
|
|
},
|
|
}
|
|
|
|
for _, tt := range tc {
|
|
t.Run(tt.desc, func(t *testing.T) {
|
|
m := metricTypeToMetricTypeProto(tt.input)
|
|
require.Equal(t, tt.expected, m)
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestDecodeWriteRequest(t *testing.T) {
|
|
buf, _, err := buildWriteRequest(writeRequestFixture.Timeseries, nil, nil, nil)
|
|
require.NoError(t, err)
|
|
|
|
actual, err := DecodeWriteRequest(bytes.NewReader(buf))
|
|
require.NoError(t, err)
|
|
require.Equal(t, writeRequestFixture, actual)
|
|
}
|
|
|
|
func TestNilHistogramProto(*testing.T) {
|
|
// This function will panic if it impromperly handles nil
|
|
// values, causing the test to fail.
|
|
HistogramProtoToHistogram(prompb.Histogram{})
|
|
FloatHistogramProtoToFloatHistogram(prompb.Histogram{})
|
|
}
|
|
|
|
func exampleHistogram() histogram.Histogram {
|
|
return histogram.Histogram{
|
|
CounterResetHint: histogram.GaugeType,
|
|
Schema: 0,
|
|
Count: 19,
|
|
Sum: 2.7,
|
|
PositiveSpans: []histogram.Span{
|
|
{Offset: 0, Length: 4},
|
|
{Offset: 0, Length: 0},
|
|
{Offset: 0, Length: 3},
|
|
},
|
|
PositiveBuckets: []int64{1, 2, -2, 1, -1, 0, 0},
|
|
NegativeSpans: []histogram.Span{
|
|
{Offset: 0, Length: 5},
|
|
{Offset: 1, Length: 0},
|
|
{Offset: 0, Length: 1},
|
|
},
|
|
NegativeBuckets: []int64{1, 2, -2, 1, -1, 0},
|
|
}
|
|
}
|
|
|
|
func exampleHistogramProto() prompb.Histogram {
|
|
return prompb.Histogram{
|
|
Count: &prompb.Histogram_CountInt{CountInt: 19},
|
|
Sum: 2.7,
|
|
Schema: 0,
|
|
ZeroThreshold: 0,
|
|
ZeroCount: &prompb.Histogram_ZeroCountInt{ZeroCountInt: 0},
|
|
NegativeSpans: []prompb.BucketSpan{
|
|
{
|
|
Offset: 0,
|
|
Length: 5,
|
|
},
|
|
{
|
|
Offset: 1,
|
|
Length: 0,
|
|
},
|
|
{
|
|
Offset: 0,
|
|
Length: 1,
|
|
},
|
|
},
|
|
NegativeDeltas: []int64{1, 2, -2, 1, -1, 0},
|
|
PositiveSpans: []prompb.BucketSpan{
|
|
{
|
|
Offset: 0,
|
|
Length: 4,
|
|
},
|
|
{
|
|
Offset: 0,
|
|
Length: 0,
|
|
},
|
|
{
|
|
Offset: 0,
|
|
Length: 3,
|
|
},
|
|
},
|
|
PositiveDeltas: []int64{1, 2, -2, 1, -1, 0, 0},
|
|
ResetHint: prompb.Histogram_GAUGE,
|
|
Timestamp: 1337,
|
|
}
|
|
}
|
|
|
|
func TestHistogramToProtoConvert(t *testing.T) {
|
|
tests := []struct {
|
|
input histogram.CounterResetHint
|
|
expected prompb.Histogram_ResetHint
|
|
}{
|
|
{
|
|
input: histogram.UnknownCounterReset,
|
|
expected: prompb.Histogram_UNKNOWN,
|
|
},
|
|
{
|
|
input: histogram.CounterReset,
|
|
expected: prompb.Histogram_YES,
|
|
},
|
|
{
|
|
input: histogram.NotCounterReset,
|
|
expected: prompb.Histogram_NO,
|
|
},
|
|
{
|
|
input: histogram.GaugeType,
|
|
expected: prompb.Histogram_GAUGE,
|
|
},
|
|
}
|
|
|
|
for _, test := range tests {
|
|
h := exampleHistogram()
|
|
h.CounterResetHint = test.input
|
|
p := exampleHistogramProto()
|
|
p.ResetHint = test.expected
|
|
|
|
require.Equal(t, p, HistogramToHistogramProto(1337, &h))
|
|
|
|
require.Equal(t, h, *HistogramProtoToHistogram(p))
|
|
}
|
|
}
|
|
|
|
func exampleFloatHistogram() histogram.FloatHistogram {
|
|
return histogram.FloatHistogram{
|
|
CounterResetHint: histogram.GaugeType,
|
|
Schema: 0,
|
|
Count: 19,
|
|
Sum: 2.7,
|
|
PositiveSpans: []histogram.Span{
|
|
{Offset: 0, Length: 4},
|
|
{Offset: 0, Length: 0},
|
|
{Offset: 0, Length: 3},
|
|
},
|
|
PositiveBuckets: []float64{1, 2, -2, 1, -1, 0, 0},
|
|
NegativeSpans: []histogram.Span{
|
|
{Offset: 0, Length: 5},
|
|
{Offset: 1, Length: 0},
|
|
{Offset: 0, Length: 1},
|
|
},
|
|
NegativeBuckets: []float64{1, 2, -2, 1, -1, 0},
|
|
}
|
|
}
|
|
|
|
func exampleFloatHistogramProto() prompb.Histogram {
|
|
return prompb.Histogram{
|
|
Count: &prompb.Histogram_CountFloat{CountFloat: 19},
|
|
Sum: 2.7,
|
|
Schema: 0,
|
|
ZeroThreshold: 0,
|
|
ZeroCount: &prompb.Histogram_ZeroCountFloat{ZeroCountFloat: 0},
|
|
NegativeSpans: []prompb.BucketSpan{
|
|
{
|
|
Offset: 0,
|
|
Length: 5,
|
|
},
|
|
{
|
|
Offset: 1,
|
|
Length: 0,
|
|
},
|
|
{
|
|
Offset: 0,
|
|
Length: 1,
|
|
},
|
|
},
|
|
NegativeCounts: []float64{1, 2, -2, 1, -1, 0},
|
|
PositiveSpans: []prompb.BucketSpan{
|
|
{
|
|
Offset: 0,
|
|
Length: 4,
|
|
},
|
|
{
|
|
Offset: 0,
|
|
Length: 0,
|
|
},
|
|
{
|
|
Offset: 0,
|
|
Length: 3,
|
|
},
|
|
},
|
|
PositiveCounts: []float64{1, 2, -2, 1, -1, 0, 0},
|
|
ResetHint: prompb.Histogram_GAUGE,
|
|
Timestamp: 1337,
|
|
}
|
|
}
|
|
|
|
func TestFloatHistogramToProtoConvert(t *testing.T) {
|
|
tests := []struct {
|
|
input histogram.CounterResetHint
|
|
expected prompb.Histogram_ResetHint
|
|
}{
|
|
{
|
|
input: histogram.UnknownCounterReset,
|
|
expected: prompb.Histogram_UNKNOWN,
|
|
},
|
|
{
|
|
input: histogram.CounterReset,
|
|
expected: prompb.Histogram_YES,
|
|
},
|
|
{
|
|
input: histogram.NotCounterReset,
|
|
expected: prompb.Histogram_NO,
|
|
},
|
|
{
|
|
input: histogram.GaugeType,
|
|
expected: prompb.Histogram_GAUGE,
|
|
},
|
|
}
|
|
|
|
for _, test := range tests {
|
|
h := exampleFloatHistogram()
|
|
h.CounterResetHint = test.input
|
|
p := exampleFloatHistogramProto()
|
|
p.ResetHint = test.expected
|
|
|
|
require.Equal(t, p, FloatHistogramToHistogramProto(1337, &h))
|
|
|
|
require.Equal(t, h, *FloatHistogramProtoToFloatHistogram(p))
|
|
}
|
|
}
|
|
|
|
func TestStreamResponse(t *testing.T) {
|
|
lbs1 := labelsToLabelsProto(labels.FromStrings("instance", "localhost1", "job", "demo1"), nil)
|
|
lbs2 := labelsToLabelsProto(labels.FromStrings("instance", "localhost2", "job", "demo2"), nil)
|
|
chunk := prompb.Chunk{
|
|
Type: prompb.Chunk_XOR,
|
|
Data: make([]byte, 100),
|
|
}
|
|
lbSize, chunkSize := 0, chunk.Size()
|
|
for _, lb := range lbs1 {
|
|
lbSize += lb.Size()
|
|
}
|
|
maxBytesInFrame := lbSize + chunkSize*2
|
|
testData := []*prompb.ChunkedSeries{{
|
|
Labels: lbs1,
|
|
Chunks: []prompb.Chunk{chunk, chunk, chunk, chunk},
|
|
}, {
|
|
Labels: lbs2,
|
|
Chunks: []prompb.Chunk{chunk, chunk, chunk, chunk},
|
|
}}
|
|
css := newMockChunkSeriesSet(testData)
|
|
writer := mockWriter{}
|
|
warning, err := StreamChunkedReadResponses(&writer, 0,
|
|
css,
|
|
nil,
|
|
maxBytesInFrame,
|
|
&sync.Pool{})
|
|
require.Nil(t, warning)
|
|
require.Nil(t, err)
|
|
expectData := []*prompb.ChunkedSeries{{
|
|
Labels: lbs1,
|
|
Chunks: []prompb.Chunk{chunk, chunk},
|
|
}, {
|
|
Labels: lbs1,
|
|
Chunks: []prompb.Chunk{chunk, chunk},
|
|
}, {
|
|
Labels: lbs2,
|
|
Chunks: []prompb.Chunk{chunk, chunk},
|
|
}, {
|
|
Labels: lbs2,
|
|
Chunks: []prompb.Chunk{chunk, chunk},
|
|
}}
|
|
require.Equal(t, expectData, writer.actual)
|
|
}
|
|
|
|
type mockWriter struct {
|
|
actual []*prompb.ChunkedSeries
|
|
}
|
|
|
|
func (m *mockWriter) Write(p []byte) (n int, err error) {
|
|
cr := &prompb.ChunkedReadResponse{}
|
|
if err := proto.Unmarshal(p, cr); err != nil {
|
|
return 0, fmt.Errorf("unmarshaling: %w", err)
|
|
}
|
|
m.actual = append(m.actual, cr.ChunkedSeries...)
|
|
return len(p), nil
|
|
}
|
|
|
|
type mockChunkSeriesSet struct {
|
|
chunkedSeries []*prompb.ChunkedSeries
|
|
index int
|
|
}
|
|
|
|
func newMockChunkSeriesSet(ss []*prompb.ChunkedSeries) storage.ChunkSeriesSet {
|
|
return &mockChunkSeriesSet{chunkedSeries: ss, index: -1}
|
|
}
|
|
|
|
func (c *mockChunkSeriesSet) Next() bool {
|
|
c.index++
|
|
return c.index < len(c.chunkedSeries)
|
|
}
|
|
|
|
func (c *mockChunkSeriesSet) At() storage.ChunkSeries {
|
|
return &storage.ChunkSeriesEntry{
|
|
Lset: labelProtosToLabels(c.chunkedSeries[c.index].Labels),
|
|
ChunkIteratorFn: func(chunks.Iterator) chunks.Iterator {
|
|
return &mockChunkIterator{
|
|
chunks: c.chunkedSeries[c.index].Chunks,
|
|
index: -1,
|
|
}
|
|
},
|
|
}
|
|
}
|
|
|
|
func (c *mockChunkSeriesSet) Warnings() storage.Warnings { return nil }
|
|
|
|
func (c *mockChunkSeriesSet) Err() error {
|
|
return nil
|
|
}
|
|
|
|
type mockChunkIterator struct {
|
|
chunks []prompb.Chunk
|
|
index int
|
|
}
|
|
|
|
func (c *mockChunkIterator) At() chunks.Meta {
|
|
one := c.chunks[c.index]
|
|
chunk, err := chunkenc.FromData(chunkenc.Encoding(one.Type), one.Data)
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
return chunks.Meta{
|
|
Chunk: chunk,
|
|
MinTime: one.MinTimeMs,
|
|
MaxTime: one.MaxTimeMs,
|
|
}
|
|
}
|
|
|
|
func (c *mockChunkIterator) Next() bool {
|
|
c.index++
|
|
return c.index < len(c.chunks)
|
|
}
|
|
|
|
func (c *mockChunkIterator) Err() error {
|
|
return nil
|
|
}
|