mirror of
https://github.com/prometheus/prometheus.git
synced 2024-12-25 05:34:05 -08:00
9474610baf
Extends Appender.AppendHistogram function to accept the FloatHistogram. TSDB supports appending, querying, WAL replay, for this new type of histogram. Signed-off-by: Marc Tudurí <marctc@protonmail.com> Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com> Co-authored-by: Ganesh Vernekar <ganeshvern@gmail.com>
245 lines
6.9 KiB
Go
245 lines
6.9 KiB
Go
// Copyright 2021 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"
|
|
"context"
|
|
"fmt"
|
|
"io"
|
|
"net/http"
|
|
"net/http/httptest"
|
|
"testing"
|
|
|
|
"github.com/go-kit/log"
|
|
"github.com/stretchr/testify/require"
|
|
|
|
"github.com/prometheus/prometheus/model/exemplar"
|
|
"github.com/prometheus/prometheus/model/histogram"
|
|
"github.com/prometheus/prometheus/model/labels"
|
|
"github.com/prometheus/prometheus/model/metadata"
|
|
"github.com/prometheus/prometheus/prompb"
|
|
"github.com/prometheus/prometheus/storage"
|
|
)
|
|
|
|
func TestRemoteWriteHandler(t *testing.T) {
|
|
buf, _, err := buildWriteRequest(writeRequestFixture.Timeseries, nil, nil, nil)
|
|
require.NoError(t, err)
|
|
|
|
req, err := http.NewRequest("", "", bytes.NewReader(buf))
|
|
require.NoError(t, err)
|
|
|
|
appendable := &mockAppendable{}
|
|
handler := NewWriteHandler(nil, appendable)
|
|
|
|
recorder := httptest.NewRecorder()
|
|
handler.ServeHTTP(recorder, req)
|
|
|
|
resp := recorder.Result()
|
|
require.Equal(t, http.StatusNoContent, resp.StatusCode)
|
|
|
|
i := 0
|
|
j := 0
|
|
k := 0
|
|
for _, ts := range writeRequestFixture.Timeseries {
|
|
labels := labelProtosToLabels(ts.Labels)
|
|
for _, s := range ts.Samples {
|
|
require.Equal(t, mockSample{labels, s.Timestamp, s.Value}, appendable.samples[i])
|
|
i++
|
|
}
|
|
|
|
for _, e := range ts.Exemplars {
|
|
exemplarLabels := labelProtosToLabels(e.Labels)
|
|
require.Equal(t, mockExemplar{labels, exemplarLabels, e.Timestamp, e.Value}, appendable.exemplars[j])
|
|
j++
|
|
}
|
|
|
|
for _, hp := range ts.Histograms {
|
|
h := HistogramProtoToHistogram(hp)
|
|
require.Equal(t, mockHistogram{labels, hp.Timestamp, h, nil}, appendable.histograms[k])
|
|
k++
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestOutOfOrderSample(t *testing.T) {
|
|
buf, _, err := buildWriteRequest([]prompb.TimeSeries{{
|
|
Labels: []prompb.Label{{Name: "__name__", Value: "test_metric"}},
|
|
Samples: []prompb.Sample{{Value: 1, Timestamp: 0}},
|
|
}}, nil, nil, nil)
|
|
require.NoError(t, err)
|
|
|
|
req, err := http.NewRequest("", "", bytes.NewReader(buf))
|
|
require.NoError(t, err)
|
|
|
|
appendable := &mockAppendable{
|
|
latestSample: 100,
|
|
}
|
|
handler := NewWriteHandler(log.NewNopLogger(), appendable)
|
|
|
|
recorder := httptest.NewRecorder()
|
|
handler.ServeHTTP(recorder, req)
|
|
|
|
resp := recorder.Result()
|
|
require.Equal(t, http.StatusBadRequest, resp.StatusCode)
|
|
}
|
|
|
|
// This test case currently aims to verify that the WriteHandler endpoint
|
|
// don't fail on ingestion errors since the exemplar storage is
|
|
// still experimental.
|
|
func TestOutOfOrderExemplar(t *testing.T) {
|
|
buf, _, err := buildWriteRequest([]prompb.TimeSeries{{
|
|
Labels: []prompb.Label{{Name: "__name__", Value: "test_metric"}},
|
|
Exemplars: []prompb.Exemplar{{Labels: []prompb.Label{{Name: "foo", Value: "bar"}}, Value: 1, Timestamp: 0}},
|
|
}}, nil, nil, nil)
|
|
require.NoError(t, err)
|
|
|
|
req, err := http.NewRequest("", "", bytes.NewReader(buf))
|
|
require.NoError(t, err)
|
|
|
|
appendable := &mockAppendable{
|
|
latestExemplar: 100,
|
|
}
|
|
handler := NewWriteHandler(log.NewNopLogger(), appendable)
|
|
|
|
recorder := httptest.NewRecorder()
|
|
handler.ServeHTTP(recorder, req)
|
|
|
|
resp := recorder.Result()
|
|
// TODO: update to require.Equal(t, http.StatusConflict, resp.StatusCode) once exemplar storage is not experimental.
|
|
require.Equal(t, http.StatusNoContent, resp.StatusCode)
|
|
}
|
|
|
|
func TestOutOfOrderHistogram(t *testing.T) {
|
|
buf, _, err := buildWriteRequest([]prompb.TimeSeries{{
|
|
Labels: []prompb.Label{{Name: "__name__", Value: "test_metric"}},
|
|
Histograms: []prompb.Histogram{HistogramToHistogramProto(0, &testHistogram)},
|
|
}}, nil, nil, nil)
|
|
require.NoError(t, err)
|
|
|
|
req, err := http.NewRequest("", "", bytes.NewReader(buf))
|
|
require.NoError(t, err)
|
|
|
|
appendable := &mockAppendable{
|
|
latestHistogram: 100,
|
|
}
|
|
handler := NewWriteHandler(log.NewNopLogger(), appendable)
|
|
|
|
recorder := httptest.NewRecorder()
|
|
handler.ServeHTTP(recorder, req)
|
|
|
|
resp := recorder.Result()
|
|
require.Equal(t, http.StatusBadRequest, resp.StatusCode)
|
|
}
|
|
|
|
func TestCommitErr(t *testing.T) {
|
|
buf, _, err := buildWriteRequest(writeRequestFixture.Timeseries, nil, nil, nil)
|
|
require.NoError(t, err)
|
|
|
|
req, err := http.NewRequest("", "", bytes.NewReader(buf))
|
|
require.NoError(t, err)
|
|
|
|
appendable := &mockAppendable{
|
|
commitErr: fmt.Errorf("commit error"),
|
|
}
|
|
handler := NewWriteHandler(log.NewNopLogger(), appendable)
|
|
|
|
recorder := httptest.NewRecorder()
|
|
handler.ServeHTTP(recorder, req)
|
|
|
|
resp := recorder.Result()
|
|
body, err := io.ReadAll(resp.Body)
|
|
require.NoError(t, err)
|
|
require.Equal(t, http.StatusInternalServerError, resp.StatusCode)
|
|
require.Equal(t, "commit error\n", string(body))
|
|
}
|
|
|
|
type mockAppendable struct {
|
|
latestSample int64
|
|
samples []mockSample
|
|
latestExemplar int64
|
|
exemplars []mockExemplar
|
|
latestHistogram int64
|
|
histograms []mockHistogram
|
|
commitErr error
|
|
}
|
|
|
|
type mockSample struct {
|
|
l labels.Labels
|
|
t int64
|
|
v float64
|
|
}
|
|
|
|
type mockExemplar struct {
|
|
l labels.Labels
|
|
el labels.Labels
|
|
t int64
|
|
v float64
|
|
}
|
|
|
|
type mockHistogram struct {
|
|
l labels.Labels
|
|
t int64
|
|
h *histogram.Histogram
|
|
fh *histogram.FloatHistogram
|
|
}
|
|
|
|
func (m *mockAppendable) Appender(_ context.Context) storage.Appender {
|
|
return m
|
|
}
|
|
|
|
func (m *mockAppendable) Append(_ storage.SeriesRef, l labels.Labels, t int64, v float64) (storage.SeriesRef, error) {
|
|
if t < m.latestSample {
|
|
return 0, storage.ErrOutOfOrderSample
|
|
}
|
|
|
|
m.latestSample = t
|
|
m.samples = append(m.samples, mockSample{l, t, v})
|
|
return 0, nil
|
|
}
|
|
|
|
func (m *mockAppendable) Commit() error {
|
|
return m.commitErr
|
|
}
|
|
|
|
func (*mockAppendable) Rollback() error {
|
|
return fmt.Errorf("not implemented")
|
|
}
|
|
|
|
func (m *mockAppendable) AppendExemplar(_ storage.SeriesRef, l labels.Labels, e exemplar.Exemplar) (storage.SeriesRef, error) {
|
|
if e.Ts < m.latestExemplar {
|
|
return 0, storage.ErrOutOfOrderExemplar
|
|
}
|
|
|
|
m.latestExemplar = e.Ts
|
|
m.exemplars = append(m.exemplars, mockExemplar{l, e.Labels, e.Ts, e.Value})
|
|
return 0, nil
|
|
}
|
|
|
|
func (m *mockAppendable) AppendHistogram(ref storage.SeriesRef, l labels.Labels, t int64, h *histogram.Histogram, fh *histogram.FloatHistogram) (storage.SeriesRef, error) {
|
|
if t < m.latestHistogram {
|
|
return 0, storage.ErrOutOfOrderSample
|
|
}
|
|
|
|
m.latestHistogram = t
|
|
m.histograms = append(m.histograms, mockHistogram{l, t, h, fh})
|
|
return 0, nil
|
|
}
|
|
|
|
func (m *mockAppendable) UpdateMetadata(_ storage.SeriesRef, _ labels.Labels, _ metadata.Metadata) (storage.SeriesRef, error) {
|
|
// TODO: Wire metadata in a mockAppendable field when we get around to handling metadata in remote_write.
|
|
// UpdateMetadata is no-op for remote write (where mockAppendable is being used to test) for now.
|
|
return 0, nil
|
|
}
|