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[PRW 2.0] write_handler: Support for rc.2 spec & improved error handling for v2. (#14427)
* [PRW 2.0] write_handler: Support for rc.2 spec & improved error handling for v2. Fixes: https://github.com/prometheus/prometheus/issues/14359 Signed-off-by: bwplotka <bwplotka@gmail.com> * Addressed Callum comments. Signed-off-by: bwplotka <bwplotka@gmail.com> * Added missing lock on flush. Signed-off-by: bwplotka <bwplotka@gmail.com> * Fixed lint. Signed-off-by: bwplotka <bwplotka@gmail.com> * Added tests. Signed-off-by: bwplotka <bwplotka@gmail.com> * Addressed Callum's comments & updated re spec. Signed-off-by: bwplotka <bwplotka@gmail.com> * Update storage/remote/write_handler_test.go Co-authored-by: Callum Styan <callumstyan@gmail.com> Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com> --------- Signed-off-by: bwplotka <bwplotka@gmail.com> Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com> Co-authored-by: Callum Styan <callumstyan@gmail.com>
This commit is contained in:
Bartlomiej Plotka
GitHub
parent
bab098a4c1
commit
0c87643abd
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@ -36,48 +36,48 @@ import (
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"github.com/prometheus/prometheus/util/annotations"
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)
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var testHistogram = histogram.Histogram{
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Schema: 2,
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ZeroThreshold: 1e-128,
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ZeroCount: 0,
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Count: 0,
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Sum: 20,
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PositiveSpans: []histogram.Span{{Offset: 0, Length: 1}},
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PositiveBuckets: []int64{1},
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NegativeSpans: []histogram.Span{{Offset: 0, Length: 1}},
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NegativeBuckets: []int64{-1},
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}
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var writeRequestFixture = &prompb.WriteRequest{
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Timeseries: []prompb.TimeSeries{
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{
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Labels: []prompb.Label{
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{Name: "__name__", Value: "test_metric1"},
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{Name: "b", Value: "c"},
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{Name: "baz", Value: "qux"},
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{Name: "d", Value: "e"},
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{Name: "foo", Value: "bar"},
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},
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Samples: []prompb.Sample{{Value: 1, Timestamp: 0}},
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Exemplars: []prompb.Exemplar{{Labels: []prompb.Label{{Name: "f", Value: "g"}}, Value: 1, Timestamp: 0}},
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Histograms: []prompb.Histogram{prompb.FromIntHistogram(0, &testHistogram), prompb.FromFloatHistogram(1, testHistogram.ToFloat(nil))},
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},
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{
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Labels: []prompb.Label{
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{Name: "__name__", Value: "test_metric1"},
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{Name: "b", Value: "c"},
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{Name: "baz", Value: "qux"},
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{Name: "d", Value: "e"},
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{Name: "foo", Value: "bar"},
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},
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Samples: []prompb.Sample{{Value: 2, Timestamp: 1}},
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Exemplars: []prompb.Exemplar{{Labels: []prompb.Label{{Name: "h", Value: "i"}}, Value: 2, Timestamp: 1}},
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Histograms: []prompb.Histogram{prompb.FromIntHistogram(2, &testHistogram), prompb.FromFloatHistogram(3, testHistogram.ToFloat(nil))},
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},
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},
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}
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var (
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testHistogram = histogram.Histogram{
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Schema: 2,
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ZeroThreshold: 1e-128,
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ZeroCount: 0,
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Count: 0,
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Sum: 20,
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PositiveSpans: []histogram.Span{{Offset: 0, Length: 1}},
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PositiveBuckets: []int64{1},
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NegativeSpans: []histogram.Span{{Offset: 0, Length: 1}},
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NegativeBuckets: []int64{-1},
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}
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writeRequestFixture = &prompb.WriteRequest{
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Timeseries: []prompb.TimeSeries{
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{
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Labels: []prompb.Label{
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{Name: "__name__", Value: "test_metric1"},
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{Name: "b", Value: "c"},
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{Name: "baz", Value: "qux"},
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{Name: "d", Value: "e"},
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{Name: "foo", Value: "bar"},
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},
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Samples: []prompb.Sample{{Value: 1, Timestamp: 1}},
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Exemplars: []prompb.Exemplar{{Labels: []prompb.Label{{Name: "f", Value: "g"}}, Value: 1, Timestamp: 1}},
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Histograms: []prompb.Histogram{prompb.FromIntHistogram(1, &testHistogram), prompb.FromFloatHistogram(2, testHistogram.ToFloat(nil))},
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},
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{
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Labels: []prompb.Label{
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{Name: "__name__", Value: "test_metric1"},
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{Name: "b", Value: "c"},
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{Name: "baz", Value: "qux"},
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{Name: "d", Value: "e"},
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{Name: "foo", Value: "bar"},
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},
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Samples: []prompb.Sample{{Value: 2, Timestamp: 2}},
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Exemplars: []prompb.Exemplar{{Labels: []prompb.Label{{Name: "h", Value: "i"}}, Value: 2, Timestamp: 2}},
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Histograms: []prompb.Histogram{prompb.FromIntHistogram(3, &testHistogram), prompb.FromFloatHistogram(4, testHistogram.ToFloat(nil))},
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},
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},
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}
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writeV2RequestSeries1Metadata = metadata.Metadata{
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Type: model.MetricTypeGauge,
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Help: "Test gauge for test purposes",
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@ -88,43 +88,78 @@ var (
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Help: "Test counter for test purposes",
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}
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// writeV2RequestFixture represents the same request as writeRequestFixture, but using the v2 representation.
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writeV2RequestFixture = func() *writev2.Request {
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st := writev2.NewSymbolTable()
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b := labels.NewScratchBuilder(0)
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labelRefs := st.SymbolizeLabels(writeRequestFixture.Timeseries[0].ToLabels(&b, nil), nil)
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exemplar1LabelRefs := st.SymbolizeLabels(writeRequestFixture.Timeseries[0].Exemplars[0].ToExemplar(&b, nil).Labels, nil)
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exemplar2LabelRefs := st.SymbolizeLabels(writeRequestFixture.Timeseries[0].Exemplars[0].ToExemplar(&b, nil).Labels, nil)
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return &writev2.Request{
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Timeseries: []writev2.TimeSeries{
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{
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LabelsRefs: labelRefs,
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Metadata: writev2.Metadata{
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Type: writev2.Metadata_METRIC_TYPE_GAUGE, // Same as writeV2RequestSeries1Metadata.Type, but in writev2.
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HelpRef: st.Symbolize(writeV2RequestSeries1Metadata.Help),
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UnitRef: st.Symbolize(writeV2RequestSeries1Metadata.Unit),
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},
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Samples: []writev2.Sample{{Value: 1, Timestamp: 0}},
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Exemplars: []writev2.Exemplar{{LabelsRefs: exemplar1LabelRefs, Value: 1, Timestamp: 0}},
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Histograms: []writev2.Histogram{writev2.FromIntHistogram(0, &testHistogram), writev2.FromFloatHistogram(1, testHistogram.ToFloat(nil))},
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},
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{
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LabelsRefs: labelRefs,
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Metadata: writev2.Metadata{
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Type: writev2.Metadata_METRIC_TYPE_COUNTER, // Same as writeV2RequestSeries2Metadata.Type, but in writev2.
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HelpRef: st.Symbolize(writeV2RequestSeries2Metadata.Help),
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// No unit.
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},
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Samples: []writev2.Sample{{Value: 2, Timestamp: 1}},
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Exemplars: []writev2.Exemplar{{LabelsRefs: exemplar2LabelRefs, Value: 2, Timestamp: 1}},
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Histograms: []writev2.Histogram{writev2.FromIntHistogram(2, &testHistogram), writev2.FromFloatHistogram(3, testHistogram.ToFloat(nil))},
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// writeV2RequestFixture represents the same request as writeRequestFixture,
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// but using the v2 representation, plus includes writeV2RequestSeries1Metadata and writeV2RequestSeries2Metadata.
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// NOTE: Use TestWriteV2RequestFixture and copy the diff to regenerate if needed.
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writeV2RequestFixture = &writev2.Request{
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Symbols: []string{"", "__name__", "test_metric1", "b", "c", "baz", "qux", "d", "e", "foo", "bar", "f", "g", "h", "i", "Test gauge for test purposes", "Maybe op/sec who knows (:", "Test counter for test purposes"},
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Timeseries: []writev2.TimeSeries{
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{
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LabelsRefs: []uint32{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}, // Symbolized writeRequestFixture.Timeseries[0].Labels
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Metadata: writev2.Metadata{
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Type: writev2.Metadata_METRIC_TYPE_GAUGE, // writeV2RequestSeries1Metadata.Type.
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HelpRef: 15, // Symbolized writeV2RequestSeries1Metadata.Help.
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UnitRef: 16, // Symbolized writeV2RequestSeries1Metadata.Unit.
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},
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Samples: []writev2.Sample{{Value: 1, Timestamp: 1}},
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Exemplars: []writev2.Exemplar{{LabelsRefs: []uint32{11, 12}, Value: 1, Timestamp: 1}},
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Histograms: []writev2.Histogram{writev2.FromIntHistogram(1, &testHistogram), writev2.FromFloatHistogram(2, testHistogram.ToFloat(nil))},
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},
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Symbols: st.Symbols(),
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}
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}()
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{
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LabelsRefs: []uint32{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}, // Same series as first.
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Metadata: writev2.Metadata{
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Type: writev2.Metadata_METRIC_TYPE_COUNTER, // writeV2RequestSeries2Metadata.Type.
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HelpRef: 17, // Symbolized writeV2RequestSeries2Metadata.Help.
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// No unit.
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},
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Samples: []writev2.Sample{{Value: 2, Timestamp: 2}},
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Exemplars: []writev2.Exemplar{{LabelsRefs: []uint32{13, 14}, Value: 2, Timestamp: 2}},
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Histograms: []writev2.Histogram{writev2.FromIntHistogram(3, &testHistogram), writev2.FromFloatHistogram(4, testHistogram.ToFloat(nil))},
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},
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},
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}
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)
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func TestWriteV2RequestFixture(t *testing.T) {
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// Generate dynamically writeV2RequestFixture, reusing v1 fixture elements.
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st := writev2.NewSymbolTable()
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b := labels.NewScratchBuilder(0)
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labelRefs := st.SymbolizeLabels(writeRequestFixture.Timeseries[0].ToLabels(&b, nil), nil)
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exemplar1LabelRefs := st.SymbolizeLabels(writeRequestFixture.Timeseries[0].Exemplars[0].ToExemplar(&b, nil).Labels, nil)
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exemplar2LabelRefs := st.SymbolizeLabels(writeRequestFixture.Timeseries[1].Exemplars[0].ToExemplar(&b, nil).Labels, nil)
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expected := &writev2.Request{
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Timeseries: []writev2.TimeSeries{
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{
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LabelsRefs: labelRefs,
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Metadata: writev2.Metadata{
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Type: writev2.Metadata_METRIC_TYPE_GAUGE,
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HelpRef: st.Symbolize(writeV2RequestSeries1Metadata.Help),
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UnitRef: st.Symbolize(writeV2RequestSeries1Metadata.Unit),
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},
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Samples: []writev2.Sample{{Value: 1, Timestamp: 1}},
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Exemplars: []writev2.Exemplar{{LabelsRefs: exemplar1LabelRefs, Value: 1, Timestamp: 1}},
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Histograms: []writev2.Histogram{writev2.FromIntHistogram(1, &testHistogram), writev2.FromFloatHistogram(2, testHistogram.ToFloat(nil))},
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},
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{
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LabelsRefs: labelRefs,
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Metadata: writev2.Metadata{
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Type: writev2.Metadata_METRIC_TYPE_COUNTER,
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HelpRef: st.Symbolize(writeV2RequestSeries2Metadata.Help),
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// No unit.
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},
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Samples: []writev2.Sample{{Value: 2, Timestamp: 2}},
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Exemplars: []writev2.Exemplar{{LabelsRefs: exemplar2LabelRefs, Value: 2, Timestamp: 2}},
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Histograms: []writev2.Histogram{writev2.FromIntHistogram(3, &testHistogram), writev2.FromFloatHistogram(4, testHistogram.ToFloat(nil))},
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},
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},
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Symbols: st.Symbols(),
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}
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// Check if it matches static writeV2RequestFixture.
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require.Equal(t, expected, writeV2RequestFixture)
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}
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func TestValidateLabelsAndMetricName(t *testing.T) {
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tests := []struct {
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input []prompb.Label
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@ -1468,6 +1468,8 @@ func (q *queue) FlushAndShutdown(done <-chan struct{}) {
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for q.tryEnqueueingBatch(done) {
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time.Sleep(time.Second)
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}
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q.batchMtx.Lock()
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defer q.batchMtx.Unlock()
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q.batch = nil
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close(q.batchQueue)
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}
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@ -19,6 +19,7 @@ import (
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"fmt"
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"io"
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"net/http"
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"strconv"
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"strings"
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"time"
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@ -27,6 +28,7 @@ import (
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"github.com/gogo/protobuf/proto"
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"github.com/golang/snappy"
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"github.com/prometheus/client_golang/prometheus"
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"github.com/prometheus/client_golang/prometheus/promauto"
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"github.com/prometheus/prometheus/config"
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"github.com/prometheus/prometheus/model/exemplar"
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@ -43,7 +45,8 @@ type writeHandler struct {
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logger log.Logger
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appendable storage.Appendable
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samplesWithInvalidLabelsTotal prometheus.Counter
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samplesWithInvalidLabelsTotal prometheus.Counter
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samplesAppendedWithoutMetadata prometheus.Counter
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acceptedProtoMsgs map[config.RemoteWriteProtoMsg]struct{}
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}
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@ -52,6 +55,9 @@ const maxAheadTime = 10 * time.Minute
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// NewWriteHandler creates a http.Handler that accepts remote write requests with
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// the given message in acceptedProtoMsgs and writes them to the provided appendable.
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//
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// NOTE(bwplotka): When accepting v2 proto and spec, partial writes are possible
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// as per https://prometheus.io/docs/specs/remote_write_spec_2_0/#partial-write.
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func NewWriteHandler(logger log.Logger, reg prometheus.Registerer, appendable storage.Appendable, acceptedProtoMsgs []config.RemoteWriteProtoMsg) http.Handler {
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protoMsgs := map[config.RemoteWriteProtoMsg]struct{}{}
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for _, acc := range acceptedProtoMsgs {
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@ -61,15 +67,18 @@ func NewWriteHandler(logger log.Logger, reg prometheus.Registerer, appendable st
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logger: logger,
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appendable: appendable,
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acceptedProtoMsgs: protoMsgs,
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samplesWithInvalidLabelsTotal: prometheus.NewCounter(prometheus.CounterOpts{
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samplesWithInvalidLabelsTotal: promauto.With(reg).NewCounter(prometheus.CounterOpts{
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Namespace: "prometheus",
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Subsystem: "api",
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Name: "remote_write_invalid_labels_samples_total",
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Help: "The total number of remote write samples which contains invalid labels.",
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Help: "The total number of received remote write samples and histogram samples which were rejected due to invalid labels.",
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}),
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samplesAppendedWithoutMetadata: promauto.With(reg).NewCounter(prometheus.CounterOpts{
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Namespace: "prometheus",
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Subsystem: "api",
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Name: "remote_write_without_metadata_appended_samples_total",
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Help: "The total number of received remote write samples (and histogram samples) which were ingested without corresponding metadata.",
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}),
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}
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if reg != nil {
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reg.MustRegister(h.samplesWithInvalidLabelsTotal)
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}
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return h
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}
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@ -108,15 +117,15 @@ func (h *writeHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
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contentType = appProtoContentType
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}
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msg, err := h.parseProtoMsg(contentType)
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msgType, err := h.parseProtoMsg(contentType)
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if err != nil {
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level.Error(h.logger).Log("msg", "Error decoding remote write request", "err", err)
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http.Error(w, err.Error(), http.StatusUnsupportedMediaType)
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return
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}
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if _, ok := h.acceptedProtoMsgs[msg]; !ok {
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err := fmt.Errorf("%v protobuf message is not accepted by this server; accepted %v", msg, func() (ret []string) {
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if _, ok := h.acceptedProtoMsgs[msgType]; !ok {
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err := fmt.Errorf("%v protobuf message is not accepted by this server; accepted %v", msgType, func() (ret []string) {
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for k := range h.acceptedProtoMsgs {
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ret = append(ret, string(k))
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}
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@ -154,100 +163,111 @@ func (h *writeHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
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}
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// Now we have a decompressed buffer we can unmarshal it.
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switch msg {
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case config.RemoteWriteProtoMsgV1:
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if msgType == config.RemoteWriteProtoMsgV1 {
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// PRW 1.0 flow has different proto message and no partial write handling.
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var req prompb.WriteRequest
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if err := proto.Unmarshal(decompressed, &req); err != nil {
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// TODO(bwplotka): Add more context to responded error?
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level.Error(h.logger).Log("msg", "Error decoding v1 remote write request", "protobuf_message", msg, "err", err.Error())
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level.Error(h.logger).Log("msg", "Error decoding v1 remote write request", "protobuf_message", msgType, "err", err.Error())
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http.Error(w, err.Error(), http.StatusBadRequest)
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return
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}
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err = h.write(r.Context(), &req)
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case config.RemoteWriteProtoMsgV2:
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var req writev2.Request
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if err := proto.Unmarshal(decompressed, &req); err != nil {
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// TODO(bwplotka): Add more context to responded error?
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level.Error(h.logger).Log("msg", "Error decoding v2 remote write request", "protobuf_message", msg, "err", err.Error())
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http.Error(w, err.Error(), http.StatusBadRequest)
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return
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if err = h.write(r.Context(), &req); err != nil {
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switch {
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case errors.Is(err, storage.ErrOutOfOrderSample), errors.Is(err, storage.ErrOutOfBounds), errors.Is(err, storage.ErrDuplicateSampleForTimestamp), errors.Is(err, storage.ErrTooOldSample):
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// Indicated an out-of-order sample is a bad request to prevent retries.
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http.Error(w, err.Error(), http.StatusBadRequest)
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return
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default:
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level.Error(h.logger).Log("msg", "Error while remote writing the v1 request", "err", err.Error())
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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}
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}
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err = h.writeV2(r.Context(), &req)
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w.WriteHeader(http.StatusNoContent)
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return
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}
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switch {
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case err == nil:
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case errors.Is(err, storage.ErrOutOfOrderSample), errors.Is(err, storage.ErrOutOfBounds), errors.Is(err, storage.ErrDuplicateSampleForTimestamp), errors.Is(err, storage.ErrTooOldSample):
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// Indicated an out of order sample is a bad request to prevent retries.
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// Remote Write 2.x proto message handling.
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var req writev2.Request
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if err := proto.Unmarshal(decompressed, &req); err != nil {
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// TODO(bwplotka): Add more context to responded error?
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level.Error(h.logger).Log("msg", "Error decoding v2 remote write request", "protobuf_message", msgType, "err", err.Error())
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http.Error(w, err.Error(), http.StatusBadRequest)
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return
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default:
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level.Error(h.logger).Log("msg", "Error appending remote write", "err", err.Error())
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http.Error(w, err.Error(), http.StatusInternalServerError)
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}
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respStats, errHTTPCode, err := h.writeV2(r.Context(), &req)
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// Set required X-Prometheus-Remote-Write-Written-* response headers, in all cases.
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respStats.SetResponseHeaders(w.Header())
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if err != nil {
|
||||
if errHTTPCode/5 == 100 { // 5xx
|
||||
level.Error(h.logger).Log("msg", "Error while remote writing the v2 request", "err", err.Error())
|
||||
}
|
||||
http.Error(w, err.Error(), errHTTPCode)
|
||||
return
|
||||
}
|
||||
|
||||
w.WriteHeader(http.StatusNoContent)
|
||||
}
|
||||
|
||||
// checkAppendExemplarError modifies the AppendExemplar's returned error based on the error cause.
|
||||
func (h *writeHandler) checkAppendExemplarError(err error, e exemplar.Exemplar, outOfOrderErrs *int) error {
|
||||
unwrappedErr := errors.Unwrap(err)
|
||||
if unwrappedErr == nil {
|
||||
unwrappedErr = err
|
||||
}
|
||||
switch {
|
||||
case errors.Is(unwrappedErr, storage.ErrNotFound):
|
||||
return storage.ErrNotFound
|
||||
case errors.Is(unwrappedErr, storage.ErrOutOfOrderExemplar):
|
||||
*outOfOrderErrs++
|
||||
level.Debug(h.logger).Log("msg", "Out of order exemplar", "exemplar", fmt.Sprintf("%+v", e))
|
||||
return nil
|
||||
default:
|
||||
return err
|
||||
}
|
||||
}
|
||||
|
||||
func (h *writeHandler) write(ctx context.Context, req *prompb.WriteRequest) (err error) {
|
||||
outOfOrderExemplarErrs := 0
|
||||
samplesWithInvalidLabels := 0
|
||||
samplesAppended := 0
|
||||
|
||||
timeLimitApp := &timeLimitAppender{
|
||||
app := &timeLimitAppender{
|
||||
Appender: h.appendable.Appender(ctx),
|
||||
maxTime: timestamp.FromTime(time.Now().Add(maxAheadTime)),
|
||||
}
|
||||
|
||||
defer func() {
|
||||
if err != nil {
|
||||
_ = timeLimitApp.Rollback()
|
||||
_ = app.Rollback()
|
||||
return
|
||||
}
|
||||
err = timeLimitApp.Commit()
|
||||
err = app.Commit()
|
||||
if err != nil {
|
||||
h.samplesAppendedWithoutMetadata.Add(float64(samplesAppended))
|
||||
}
|
||||
}()
|
||||
|
||||
b := labels.NewScratchBuilder(0)
|
||||
for _, ts := range req.Timeseries {
|
||||
ls := ts.ToLabels(&b, nil)
|
||||
if !ls.IsValid() {
|
||||
if !ls.Has(labels.MetricName) || !ls.IsValid() {
|
||||
level.Warn(h.logger).Log("msg", "Invalid metric names or labels", "got", ls.String())
|
||||
samplesWithInvalidLabels++
|
||||
// TODO(bwplotka): Even as per 1.0 spec, this should be a 400 error, while other samples are
|
||||
// potentially written. Perhaps unify with fixed writeV2 implementation a bit.
|
||||
continue
|
||||
}
|
||||
|
||||
err := h.appendSamples(timeLimitApp, ts.Samples, ls)
|
||||
if err != nil {
|
||||
if err := h.appendV1Samples(app, ts.Samples, ls); err != nil {
|
||||
return err
|
||||
}
|
||||
samplesAppended += len(ts.Samples)
|
||||
|
||||
for _, ep := range ts.Exemplars {
|
||||
e := ep.ToExemplar(&b, nil)
|
||||
h.appendExemplar(timeLimitApp, e, ls, &outOfOrderExemplarErrs)
|
||||
if _, err := app.AppendExemplar(0, ls, e); err != nil {
|
||||
switch {
|
||||
case errors.Is(err, storage.ErrOutOfOrderExemplar):
|
||||
outOfOrderExemplarErrs++
|
||||
level.Debug(h.logger).Log("msg", "Out of order exemplar", "series", ls.String(), "exemplar", fmt.Sprintf("%+v", e))
|
||||
default:
|
||||
// Since exemplar storage is still experimental, we don't fail the request on ingestion errors
|
||||
level.Debug(h.logger).Log("msg", "Error while adding exemplar in AppendExemplar", "series", ls.String(), "exemplar", fmt.Sprintf("%+v", e), "err", err)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
err = h.appendHistograms(timeLimitApp, ts.Histograms, ls)
|
||||
if err != nil {
|
||||
if err = h.appendV1Histograms(app, ts.Histograms, ls); err != nil {
|
||||
return err
|
||||
}
|
||||
samplesAppended += len(ts.Histograms)
|
||||
}
|
||||
|
||||
if outOfOrderExemplarErrs > 0 {
|
||||
|
|
@ -256,151 +276,216 @@ func (h *writeHandler) write(ctx context.Context, req *prompb.WriteRequest) (err
|
|||
if samplesWithInvalidLabels > 0 {
|
||||
h.samplesWithInvalidLabelsTotal.Add(float64(samplesWithInvalidLabels))
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func (h *writeHandler) writeV2(ctx context.Context, req *writev2.Request) (err error) {
|
||||
outOfOrderExemplarErrs := 0
|
||||
func (h *writeHandler) appendV1Samples(app storage.Appender, ss []prompb.Sample, labels labels.Labels) error {
|
||||
var ref storage.SeriesRef
|
||||
var err error
|
||||
for _, s := range ss {
|
||||
ref, err = app.Append(ref, labels, s.GetTimestamp(), s.GetValue())
|
||||
if err != nil {
|
||||
if errors.Is(err, storage.ErrOutOfOrderSample) ||
|
||||
errors.Is(err, storage.ErrOutOfBounds) ||
|
||||
errors.Is(err, storage.ErrDuplicateSampleForTimestamp) {
|
||||
level.Error(h.logger).Log("msg", "Out of order sample from remote write", "err", err.Error(), "series", labels.String(), "timestamp", s.Timestamp)
|
||||
}
|
||||
return err
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
timeLimitApp := &timeLimitAppender{
|
||||
func (h *writeHandler) appendV1Histograms(app storage.Appender, hh []prompb.Histogram, labels labels.Labels) error {
|
||||
var err error
|
||||
for _, hp := range hh {
|
||||
if hp.IsFloatHistogram() {
|
||||
_, err = app.AppendHistogram(0, labels, hp.Timestamp, nil, hp.ToFloatHistogram())
|
||||
} else {
|
||||
_, err = app.AppendHistogram(0, labels, hp.Timestamp, hp.ToIntHistogram(), nil)
|
||||
}
|
||||
if err != nil {
|
||||
// Although AppendHistogram does not currently return ErrDuplicateSampleForTimestamp there is
|
||||
// a note indicating its inclusion in the future.
|
||||
if errors.Is(err, storage.ErrOutOfOrderSample) ||
|
||||
errors.Is(err, storage.ErrOutOfBounds) ||
|
||||
errors.Is(err, storage.ErrDuplicateSampleForTimestamp) {
|
||||
level.Error(h.logger).Log("msg", "Out of order histogram from remote write", "err", err.Error(), "series", labels.String(), "timestamp", hp.Timestamp)
|
||||
}
|
||||
return err
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
const (
|
||||
prw20WrittenSamplesHeader = "X-Prometheus-Remote-Write-Written-Samples"
|
||||
rw20WrittenHistogramsHeader = "X-Prometheus-Remote-Write-Written-Histograms"
|
||||
rw20WrittenExemplarsHeader = "X-Prometheus-Remote-Write-Written-Exemplars"
|
||||
)
|
||||
|
||||
type responseStats struct {
|
||||
samples int
|
||||
histograms int
|
||||
exemplars int
|
||||
}
|
||||
|
||||
func (s responseStats) SetResponseHeaders(h http.Header) {
|
||||
h.Set(prw20WrittenSamplesHeader, strconv.Itoa(s.samples))
|
||||
h.Set(rw20WrittenHistogramsHeader, strconv.Itoa(s.histograms))
|
||||
h.Set(rw20WrittenExemplarsHeader, strconv.Itoa(s.exemplars))
|
||||
}
|
||||
|
||||
// writeV2 is similar to write, but it works with v2 proto message,
|
||||
// allows partial 4xx writes and gathers statistics.
|
||||
//
|
||||
// writeV2 returns the statistics.
|
||||
// In error cases, writeV2, also returns statistics, but also the error that
|
||||
// should be propagated to the remote write sender and httpCode to use for status.
|
||||
//
|
||||
// NOTE(bwplotka): TSDB storage is NOT idempotent, so we don't allow "partial retry-able" errors.
|
||||
// Once we have 5xx type of error, we immediately stop and rollback all appends.
|
||||
func (h *writeHandler) writeV2(ctx context.Context, req *writev2.Request) (_ responseStats, errHTTPCode int, _ error) {
|
||||
app := &timeLimitAppender{
|
||||
Appender: h.appendable.Appender(ctx),
|
||||
maxTime: timestamp.FromTime(time.Now().Add(maxAheadTime)),
|
||||
}
|
||||
|
||||
defer func() {
|
||||
if err != nil {
|
||||
_ = timeLimitApp.Rollback()
|
||||
return
|
||||
rs := responseStats{}
|
||||
samplesWithoutMetadata, errHTTPCode, err := h.appendV2(app, req, &rs)
|
||||
if err != nil {
|
||||
if errHTTPCode/5 == 100 {
|
||||
// On 5xx, we always rollback, because we expect
|
||||
// sender to retry and TSDB is not idempotent.
|
||||
if rerr := app.Rollback(); rerr != nil {
|
||||
level.Error(h.logger).Log("msg", "writev2 rollback failed on retry-able error", "err", rerr)
|
||||
}
|
||||
return responseStats{}, errHTTPCode, err
|
||||
}
|
||||
err = timeLimitApp.Commit()
|
||||
}()
|
||||
|
||||
b := labels.NewScratchBuilder(0)
|
||||
// Non-retriable (e.g. bad request error case). Can be partially written.
|
||||
commitErr := app.Commit()
|
||||
if commitErr != nil {
|
||||
// Bad requests does not matter as we have internal error (retryable).
|
||||
return responseStats{}, http.StatusInternalServerError, commitErr
|
||||
}
|
||||
// Bad request error happened, but rest of data (if any) was written.
|
||||
h.samplesAppendedWithoutMetadata.Add(float64(samplesWithoutMetadata))
|
||||
return rs, errHTTPCode, err
|
||||
}
|
||||
|
||||
// All good just commit.
|
||||
if err := app.Commit(); err != nil {
|
||||
return responseStats{}, http.StatusInternalServerError, err
|
||||
}
|
||||
h.samplesAppendedWithoutMetadata.Add(float64(samplesWithoutMetadata))
|
||||
return rs, 0, nil
|
||||
}
|
||||
|
||||
func (h *writeHandler) appendV2(app storage.Appender, req *writev2.Request, rs *responseStats) (samplesWithoutMetadata, errHTTPCode int, err error) {
|
||||
var (
|
||||
badRequestErrs []error
|
||||
outOfOrderExemplarErrs, samplesWithInvalidLabels int
|
||||
|
||||
b = labels.NewScratchBuilder(0)
|
||||
)
|
||||
for _, ts := range req.Timeseries {
|
||||
ls := ts.ToLabels(&b, req.Symbols)
|
||||
|
||||
err := h.appendSamplesV2(timeLimitApp, ts.Samples, ls)
|
||||
if err != nil {
|
||||
return err
|
||||
// Validate series labels early.
|
||||
// NOTE(bwplotka): While spec allows UTF-8, Prometheus Receiver may impose
|
||||
// specific limits and follow https://prometheus.io/docs/specs/remote_write_spec_2_0/#invalid-samples case.
|
||||
if !ls.Has(labels.MetricName) || !ls.IsValid() {
|
||||
badRequestErrs = append(badRequestErrs, fmt.Errorf("invalid metric name or labels, got %v", ls.String()))
|
||||
samplesWithInvalidLabels += len(ts.Samples) + len(ts.Histograms)
|
||||
continue
|
||||
}
|
||||
|
||||
allSamplesSoFar := rs.samples + rs.histograms
|
||||
var ref storage.SeriesRef
|
||||
|
||||
// Samples.
|
||||
for _, s := range ts.Samples {
|
||||
ref, err = app.Append(ref, ls, s.GetTimestamp(), s.GetValue())
|
||||
if err == nil {
|
||||
rs.samples++
|
||||
continue
|
||||
}
|
||||
// Handle append error.
|
||||
if errors.Is(err, storage.ErrOutOfOrderSample) ||
|
||||
errors.Is(err, storage.ErrOutOfBounds) ||
|
||||
errors.Is(err, storage.ErrDuplicateSampleForTimestamp) ||
|
||||
errors.Is(err, storage.ErrTooOldSample) {
|
||||
// TODO(bwplotka): Not too spammy log?
|
||||
level.Error(h.logger).Log("msg", "Out of order sample from remote write", "err", err.Error(), "series", ls.String(), "timestamp", s.Timestamp)
|
||||
badRequestErrs = append(badRequestErrs, fmt.Errorf("%w for series %v", err, ls.String()))
|
||||
continue
|
||||
}
|
||||
return 0, http.StatusInternalServerError, err
|
||||
}
|
||||
|
||||
// Native Histograms.
|
||||
for _, hp := range ts.Histograms {
|
||||
if hp.IsFloatHistogram() {
|
||||
ref, err = app.AppendHistogram(ref, ls, hp.Timestamp, nil, hp.ToFloatHistogram())
|
||||
} else {
|
||||
ref, err = app.AppendHistogram(ref, ls, hp.Timestamp, hp.ToIntHistogram(), nil)
|
||||
}
|
||||
if err == nil {
|
||||
rs.histograms++
|
||||
continue
|
||||
}
|
||||
// Handle append error.
|
||||
// Although AppendHistogram does not currently return ErrDuplicateSampleForTimestamp there is
|
||||
// a note indicating its inclusion in the future.
|
||||
if errors.Is(err, storage.ErrOutOfOrderSample) ||
|
||||
errors.Is(err, storage.ErrOutOfBounds) ||
|
||||
errors.Is(err, storage.ErrDuplicateSampleForTimestamp) {
|
||||
// TODO(bwplotka): Not too spammy log?
|
||||
level.Error(h.logger).Log("msg", "Out of order histogram from remote write", "err", err.Error(), "series", ls.String(), "timestamp", hp.Timestamp)
|
||||
badRequestErrs = append(badRequestErrs, fmt.Errorf("%w for series %v", err, ls.String()))
|
||||
continue
|
||||
}
|
||||
return 0, http.StatusInternalServerError, err
|
||||
}
|
||||
|
||||
// Exemplars.
|
||||
for _, ep := range ts.Exemplars {
|
||||
e := ep.ToExemplar(&b, req.Symbols)
|
||||
h.appendExemplar(timeLimitApp, e, ls, &outOfOrderExemplarErrs)
|
||||
}
|
||||
|
||||
err = h.appendHistogramsV2(timeLimitApp, ts.Histograms, ls)
|
||||
if err != nil {
|
||||
return err
|
||||
ref, err = app.AppendExemplar(ref, ls, e)
|
||||
if err == nil {
|
||||
rs.exemplars++
|
||||
continue
|
||||
}
|
||||
// Handle append error.
|
||||
// TODO(bwplotka): I left the logic as in v1, but we might want to make it consistent with samples and histograms.
|
||||
// Since exemplar storage is still experimental, we don't fail in anyway, the request on ingestion errors.
|
||||
if errors.Is(err, storage.ErrOutOfOrderExemplar) {
|
||||
outOfOrderExemplarErrs++
|
||||
level.Debug(h.logger).Log("msg", "Out of order exemplar", "err", err.Error(), "series", ls.String(), "exemplar", fmt.Sprintf("%+v", e))
|
||||
continue
|
||||
}
|
||||
level.Debug(h.logger).Log("msg", "Error while adding exemplar in AppendExemplar", "series", ls.String(), "exemplar", fmt.Sprintf("%+v", e), "err", err)
|
||||
}
|
||||
|
||||
m := ts.ToMetadata(req.Symbols)
|
||||
if _, err = timeLimitApp.UpdateMetadata(0, ls, m); err != nil {
|
||||
if _, err = app.UpdateMetadata(ref, ls, m); err != nil {
|
||||
level.Debug(h.logger).Log("msg", "error while updating metadata from remote write", "err", err)
|
||||
// Metadata is attached to each series, so since Prometheus does not reject sample without metadata information,
|
||||
// we don't report remote write error either. We increment metric instead.
|
||||
samplesWithoutMetadata += (rs.samples + rs.histograms) - allSamplesSoFar
|
||||
}
|
||||
}
|
||||
|
||||
if outOfOrderExemplarErrs > 0 {
|
||||
_ = level.Warn(h.logger).Log("msg", "Error on ingesting out-of-order exemplars", "num_dropped", outOfOrderExemplarErrs)
|
||||
level.Warn(h.logger).Log("msg", "Error on ingesting out-of-order exemplars", "num_dropped", outOfOrderExemplarErrs)
|
||||
}
|
||||
h.samplesWithInvalidLabelsTotal.Add(float64(samplesWithInvalidLabels))
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func (h *writeHandler) appendExemplar(app storage.Appender, e exemplar.Exemplar, labels labels.Labels, outOfOrderExemplarErrs *int) {
|
||||
_, err := app.AppendExemplar(0, labels, e)
|
||||
err = h.checkAppendExemplarError(err, e, outOfOrderExemplarErrs)
|
||||
if err != nil {
|
||||
// Since exemplar storage is still experimental, we don't fail the request on ingestion errors
|
||||
level.Debug(h.logger).Log("msg", "Error while adding exemplar in AddExemplar", "exemplar", fmt.Sprintf("%+v", e), "err", err)
|
||||
if len(badRequestErrs) == 0 {
|
||||
return samplesWithoutMetadata, 0, nil
|
||||
}
|
||||
}
|
||||
|
||||
func (h *writeHandler) appendSamples(app storage.Appender, ss []prompb.Sample, labels labels.Labels) error {
|
||||
var ref storage.SeriesRef
|
||||
var err error
|
||||
for _, s := range ss {
|
||||
ref, err = app.Append(ref, labels, s.GetTimestamp(), s.GetValue())
|
||||
if err != nil {
|
||||
unwrappedErr := errors.Unwrap(err)
|
||||
if unwrappedErr == nil {
|
||||
unwrappedErr = err
|
||||
}
|
||||
if errors.Is(err, storage.ErrOutOfOrderSample) || errors.Is(unwrappedErr, storage.ErrOutOfBounds) || errors.Is(unwrappedErr, storage.ErrDuplicateSampleForTimestamp) {
|
||||
level.Error(h.logger).Log("msg", "Out of order sample from remote write", "err", err.Error(), "series", labels.String(), "timestamp", s.Timestamp)
|
||||
}
|
||||
return err
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func (h *writeHandler) appendSamplesV2(app storage.Appender, ss []writev2.Sample, labels labels.Labels) error {
|
||||
var ref storage.SeriesRef
|
||||
var err error
|
||||
for _, s := range ss {
|
||||
ref, err = app.Append(ref, labels, s.GetTimestamp(), s.GetValue())
|
||||
if err != nil {
|
||||
unwrappedErr := errors.Unwrap(err)
|
||||
if unwrappedErr == nil {
|
||||
unwrappedErr = err
|
||||
}
|
||||
if errors.Is(err, storage.ErrOutOfOrderSample) || errors.Is(unwrappedErr, storage.ErrOutOfBounds) || errors.Is(unwrappedErr, storage.ErrDuplicateSampleForTimestamp) {
|
||||
level.Error(h.logger).Log("msg", "Out of order sample from remote write", "err", err.Error(), "series", labels.String(), "timestamp", s.Timestamp)
|
||||
}
|
||||
return err
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func (h *writeHandler) appendHistograms(app storage.Appender, hh []prompb.Histogram, labels labels.Labels) error {
|
||||
var err error
|
||||
for _, hp := range hh {
|
||||
if hp.IsFloatHistogram() {
|
||||
_, err = app.AppendHistogram(0, labels, hp.Timestamp, nil, hp.ToFloatHistogram())
|
||||
} else {
|
||||
_, err = app.AppendHistogram(0, labels, hp.Timestamp, hp.ToIntHistogram(), nil)
|
||||
}
|
||||
if err != nil {
|
||||
unwrappedErr := errors.Unwrap(err)
|
||||
if unwrappedErr == nil {
|
||||
unwrappedErr = err
|
||||
}
|
||||
// Although AppendHistogram does not currently return ErrDuplicateSampleForTimestamp there is
|
||||
// a note indicating its inclusion in the future.
|
||||
if errors.Is(unwrappedErr, storage.ErrOutOfOrderSample) || errors.Is(unwrappedErr, storage.ErrOutOfBounds) || errors.Is(unwrappedErr, storage.ErrDuplicateSampleForTimestamp) {
|
||||
level.Error(h.logger).Log("msg", "Out of order histogram from remote write", "err", err.Error(), "series", labels.String(), "timestamp", hp.Timestamp)
|
||||
}
|
||||
return err
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func (h *writeHandler) appendHistogramsV2(app storage.Appender, hh []writev2.Histogram, labels labels.Labels) error {
|
||||
var err error
|
||||
for _, hp := range hh {
|
||||
if hp.IsFloatHistogram() {
|
||||
_, err = app.AppendHistogram(0, labels, hp.Timestamp, nil, hp.ToFloatHistogram())
|
||||
} else {
|
||||
_, err = app.AppendHistogram(0, labels, hp.Timestamp, hp.ToIntHistogram(), nil)
|
||||
}
|
||||
if err != nil {
|
||||
unwrappedErr := errors.Unwrap(err)
|
||||
if unwrappedErr == nil {
|
||||
unwrappedErr = err
|
||||
}
|
||||
// Although AppendHistogram does not currently return ErrDuplicateSampleForTimestamp there is
|
||||
// a note indicating its inclusion in the future.
|
||||
if errors.Is(unwrappedErr, storage.ErrOutOfOrderSample) || errors.Is(unwrappedErr, storage.ErrOutOfBounds) || errors.Is(unwrappedErr, storage.ErrDuplicateSampleForTimestamp) {
|
||||
level.Error(h.logger).Log("msg", "Out of order histogram from remote write", "err", err.Error(), "series", labels.String(), "timestamp", hp.Timestamp)
|
||||
}
|
||||
return err
|
||||
}
|
||||
}
|
||||
return nil
|
||||
// TODO(bwplotka): Better concat formatting? Perhaps add size limit?
|
||||
return samplesWithoutMetadata, http.StatusBadRequest, errors.Join(badRequestErrs...)
|
||||
}
|
||||
|
||||
// NewOTLPWriteHandler creates a http.Handler that accepts OTLP write requests and
|
||||
|
|
|
|||
|
|
@ -16,6 +16,7 @@ package remote
|
|||
import (
|
||||
"bytes"
|
||||
"context"
|
||||
"errors"
|
||||
"fmt"
|
||||
"io"
|
||||
"math"
|
||||
|
|
@ -27,6 +28,7 @@ import (
|
|||
"time"
|
||||
|
||||
"github.com/go-kit/log"
|
||||
"github.com/gogo/protobuf/proto"
|
||||
"github.com/google/go-cmp/cmp"
|
||||
"github.com/stretchr/testify/require"
|
||||
|
||||
|
|
@ -290,64 +292,224 @@ func TestRemoteWriteHandler_V1Message(t *testing.T) {
|
|||
}
|
||||
}
|
||||
|
||||
func expectHeaderValue(t testing.TB, expected int, got string) {
|
||||
t.Helper()
|
||||
|
||||
require.NotEmpty(t, got)
|
||||
i, err := strconv.Atoi(got)
|
||||
require.NoError(t, err)
|
||||
require.Equal(t, expected, i)
|
||||
}
|
||||
|
||||
func TestRemoteWriteHandler_V2Message(t *testing.T) {
|
||||
payload, _, _, err := buildV2WriteRequest(log.NewNopLogger(), writeV2RequestFixture.Timeseries, writeV2RequestFixture.Symbols, nil, nil, nil, "snappy")
|
||||
require.NoError(t, err)
|
||||
// V2 supports partial writes for non-retriable errors, so test them.
|
||||
for _, tc := range []struct {
|
||||
desc string
|
||||
input []writev2.TimeSeries
|
||||
expectedCode int
|
||||
expectedRespBody string
|
||||
|
||||
req, err := http.NewRequest("", "", bytes.NewReader(payload))
|
||||
require.NoError(t, err)
|
||||
commitErr error
|
||||
appendSampleErr error
|
||||
appendHistogramErr error
|
||||
appendExemplarErr error
|
||||
updateMetadataErr error
|
||||
}{
|
||||
{
|
||||
desc: "All timeseries accepted",
|
||||
input: writeV2RequestFixture.Timeseries,
|
||||
expectedCode: http.StatusNoContent,
|
||||
},
|
||||
{
|
||||
desc: "Partial write; first series with invalid labels (no metric name)",
|
||||
input: append(
|
||||
// Series with test_metric1="test_metric1" labels.
|
||||
[]writev2.TimeSeries{{LabelsRefs: []uint32{2, 2}, Samples: []writev2.Sample{{Value: 1, Timestamp: 1}}}},
|
||||
writeV2RequestFixture.Timeseries...),
|
||||
expectedCode: http.StatusBadRequest,
|
||||
expectedRespBody: "invalid metric name or labels, got {test_metric1=\"test_metric1\"}\n",
|
||||
},
|
||||
{
|
||||
desc: "Partial write; first series with invalid labels (empty metric name)",
|
||||
input: append(
|
||||
// Series with __name__="" labels.
|
||||
[]writev2.TimeSeries{{LabelsRefs: []uint32{1, 0}, Samples: []writev2.Sample{{Value: 1, Timestamp: 1}}}},
|
||||
writeV2RequestFixture.Timeseries...),
|
||||
expectedCode: http.StatusBadRequest,
|
||||
expectedRespBody: "invalid metric name or labels, got {__name__=\"\"}\n",
|
||||
},
|
||||
{
|
||||
desc: "Partial write; first series with one OOO sample",
|
||||
input: func() []writev2.TimeSeries {
|
||||
f := proto.Clone(writeV2RequestFixture).(*writev2.Request)
|
||||
f.Timeseries[0].Samples = append(f.Timeseries[0].Samples, writev2.Sample{Value: 2, Timestamp: 0})
|
||||
return f.Timeseries
|
||||
}(),
|
||||
expectedCode: http.StatusBadRequest,
|
||||
expectedRespBody: "out of order sample for series {__name__=\"test_metric1\", b=\"c\", baz=\"qux\", d=\"e\", foo=\"bar\"}\n",
|
||||
},
|
||||
{
|
||||
desc: "Partial write; first series with one dup sample",
|
||||
input: func() []writev2.TimeSeries {
|
||||
f := proto.Clone(writeV2RequestFixture).(*writev2.Request)
|
||||
f.Timeseries[0].Samples = append(f.Timeseries[0].Samples, f.Timeseries[0].Samples[0])
|
||||
return f.Timeseries
|
||||
}(),
|
||||
expectedCode: http.StatusBadRequest,
|
||||
expectedRespBody: "duplicate sample for timestamp for series {__name__=\"test_metric1\", b=\"c\", baz=\"qux\", d=\"e\", foo=\"bar\"}\n",
|
||||
},
|
||||
{
|
||||
desc: "Partial write; first series with one OOO histogram sample",
|
||||
input: func() []writev2.TimeSeries {
|
||||
f := proto.Clone(writeV2RequestFixture).(*writev2.Request)
|
||||
f.Timeseries[0].Histograms = append(f.Timeseries[0].Histograms, writev2.FromFloatHistogram(1, testHistogram.ToFloat(nil)))
|
||||
return f.Timeseries
|
||||
}(),
|
||||
expectedCode: http.StatusBadRequest,
|
||||
expectedRespBody: "out of order sample for series {__name__=\"test_metric1\", b=\"c\", baz=\"qux\", d=\"e\", foo=\"bar\"}\n",
|
||||
},
|
||||
{
|
||||
desc: "Partial write; first series with one dup histogram sample",
|
||||
input: func() []writev2.TimeSeries {
|
||||
f := proto.Clone(writeV2RequestFixture).(*writev2.Request)
|
||||
f.Timeseries[0].Histograms = append(f.Timeseries[0].Histograms, f.Timeseries[0].Histograms[1])
|
||||
return f.Timeseries
|
||||
}(),
|
||||
expectedCode: http.StatusBadRequest,
|
||||
expectedRespBody: "duplicate sample for timestamp for series {__name__=\"test_metric1\", b=\"c\", baz=\"qux\", d=\"e\", foo=\"bar\"}\n",
|
||||
},
|
||||
// Non retriable errors from various parts.
|
||||
{
|
||||
desc: "Internal sample append error; rollback triggered",
|
||||
input: writeV2RequestFixture.Timeseries,
|
||||
appendSampleErr: errors.New("some sample internal append error"),
|
||||
|
||||
req.Header.Set("Content-Type", remoteWriteContentTypeHeaders[config.RemoteWriteProtoMsgV2])
|
||||
req.Header.Set("Content-Encoding", string(SnappyBlockCompression))
|
||||
req.Header.Set(RemoteWriteVersionHeader, RemoteWriteVersion20HeaderValue)
|
||||
expectedCode: http.StatusInternalServerError,
|
||||
expectedRespBody: "some sample internal append error\n",
|
||||
},
|
||||
{
|
||||
desc: "Internal histogram sample append error; rollback triggered",
|
||||
input: writeV2RequestFixture.Timeseries,
|
||||
appendHistogramErr: errors.New("some histogram sample internal append error"),
|
||||
|
||||
appendable := &mockAppendable{}
|
||||
handler := NewWriteHandler(log.NewNopLogger(), nil, appendable, []config.RemoteWriteProtoMsg{config.RemoteWriteProtoMsgV2})
|
||||
expectedCode: http.StatusInternalServerError,
|
||||
expectedRespBody: "some histogram sample internal append error\n",
|
||||
},
|
||||
{
|
||||
desc: "Partial write; skipped exemplar; exemplar storage errs are noop",
|
||||
input: writeV2RequestFixture.Timeseries,
|
||||
appendExemplarErr: errors.New("some exemplar append error"),
|
||||
|
||||
recorder := httptest.NewRecorder()
|
||||
handler.ServeHTTP(recorder, req)
|
||||
expectedCode: http.StatusNoContent,
|
||||
},
|
||||
{
|
||||
desc: "Partial write; skipped metadata; metadata storage errs are noop",
|
||||
input: writeV2RequestFixture.Timeseries,
|
||||
updateMetadataErr: errors.New("some metadata update error"),
|
||||
|
||||
resp := recorder.Result()
|
||||
require.Equal(t, http.StatusNoContent, resp.StatusCode)
|
||||
expectedCode: http.StatusNoContent,
|
||||
},
|
||||
{
|
||||
desc: "Internal commit error; rollback triggered",
|
||||
input: writeV2RequestFixture.Timeseries,
|
||||
commitErr: errors.New("storage error"),
|
||||
|
||||
b := labels.NewScratchBuilder(0)
|
||||
i := 0
|
||||
j := 0
|
||||
k := 0
|
||||
for _, ts := range writeV2RequestFixture.Timeseries {
|
||||
ls := ts.ToLabels(&b, writeV2RequestFixture.Symbols)
|
||||
expectedCode: http.StatusInternalServerError,
|
||||
expectedRespBody: "storage error\n",
|
||||
},
|
||||
} {
|
||||
t.Run(tc.desc, func(t *testing.T) {
|
||||
payload, _, _, err := buildV2WriteRequest(log.NewNopLogger(), tc.input, writeV2RequestFixture.Symbols, nil, nil, nil, "snappy")
|
||||
require.NoError(t, err)
|
||||
|
||||
for _, s := range ts.Samples {
|
||||
requireEqual(t, mockSample{ls, s.Timestamp, s.Value}, appendable.samples[i])
|
||||
req, err := http.NewRequest("", "", bytes.NewReader(payload))
|
||||
require.NoError(t, err)
|
||||
|
||||
switch i {
|
||||
case 0:
|
||||
requireEqual(t, mockMetadata{ls, writeV2RequestSeries1Metadata}, appendable.metadata[i])
|
||||
case 1:
|
||||
requireEqual(t, mockMetadata{ls, writeV2RequestSeries2Metadata}, appendable.metadata[i])
|
||||
default:
|
||||
t.Fatal("more series/samples then expected")
|
||||
req.Header.Set("Content-Type", remoteWriteContentTypeHeaders[config.RemoteWriteProtoMsgV2])
|
||||
req.Header.Set("Content-Encoding", string(SnappyBlockCompression))
|
||||
req.Header.Set(RemoteWriteVersionHeader, RemoteWriteVersion20HeaderValue)
|
||||
|
||||
appendable := &mockAppendable{
|
||||
commitErr: tc.commitErr,
|
||||
appendSampleErr: tc.appendSampleErr,
|
||||
appendHistogramErr: tc.appendHistogramErr,
|
||||
appendExemplarErr: tc.appendExemplarErr,
|
||||
updateMetadataErr: tc.updateMetadataErr,
|
||||
}
|
||||
i++
|
||||
}
|
||||
for _, e := range ts.Exemplars {
|
||||
exemplarLabels := e.ToExemplar(&b, writeV2RequestFixture.Symbols).Labels
|
||||
requireEqual(t, mockExemplar{ls, exemplarLabels, e.Timestamp, e.Value}, appendable.exemplars[j])
|
||||
j++
|
||||
}
|
||||
for _, hp := range ts.Histograms {
|
||||
if hp.IsFloatHistogram() {
|
||||
fh := hp.ToFloatHistogram()
|
||||
requireEqual(t, mockHistogram{ls, hp.Timestamp, nil, fh}, appendable.histograms[k])
|
||||
handler := NewWriteHandler(log.NewNopLogger(), nil, appendable, []config.RemoteWriteProtoMsg{config.RemoteWriteProtoMsgV2})
|
||||
|
||||
recorder := httptest.NewRecorder()
|
||||
handler.ServeHTTP(recorder, req)
|
||||
|
||||
resp := recorder.Result()
|
||||
require.Equal(t, tc.expectedCode, resp.StatusCode)
|
||||
respBody, err := io.ReadAll(resp.Body)
|
||||
require.NoError(t, err)
|
||||
require.Equal(t, tc.expectedRespBody, string(respBody))
|
||||
|
||||
if tc.expectedCode == http.StatusInternalServerError {
|
||||
// We don't expect writes for partial writes with retry-able code.
|
||||
expectHeaderValue(t, 0, resp.Header.Get("X-Prometheus-Remote-Write-Written-Samples"))
|
||||
expectHeaderValue(t, 0, resp.Header.Get("X-Prometheus-Remote-Write-Written-Histograms"))
|
||||
expectHeaderValue(t, 0, resp.Header.Get("X-Prometheus-Remote-Write-Written-Exemplars"))
|
||||
|
||||
require.Empty(t, len(appendable.samples))
|
||||
require.Empty(t, len(appendable.histograms))
|
||||
require.Empty(t, len(appendable.exemplars))
|
||||
require.Empty(t, len(appendable.metadata))
|
||||
return
|
||||
}
|
||||
|
||||
// Double check mandatory 2.0 stats.
|
||||
// writeV2RequestFixture has 2 series with 1 sample, 2 histograms, 1 exemplar each.
|
||||
expectHeaderValue(t, 2, resp.Header.Get("X-Prometheus-Remote-Write-Written-Samples"))
|
||||
expectHeaderValue(t, 4, resp.Header.Get("X-Prometheus-Remote-Write-Written-Histograms"))
|
||||
if tc.appendExemplarErr != nil {
|
||||
expectHeaderValue(t, 0, resp.Header.Get("X-Prometheus-Remote-Write-Written-Exemplars"))
|
||||
} else {
|
||||
h := hp.ToIntHistogram()
|
||||
requireEqual(t, mockHistogram{ls, hp.Timestamp, h, nil}, appendable.histograms[k])
|
||||
expectHeaderValue(t, 2, resp.Header.Get("X-Prometheus-Remote-Write-Written-Exemplars"))
|
||||
}
|
||||
k++
|
||||
}
|
||||
|
||||
// Double check what was actually appended.
|
||||
var (
|
||||
b = labels.NewScratchBuilder(0)
|
||||
i, j, k, m int
|
||||
)
|
||||
for _, ts := range writeV2RequestFixture.Timeseries {
|
||||
ls := ts.ToLabels(&b, writeV2RequestFixture.Symbols)
|
||||
|
||||
for _, s := range ts.Samples {
|
||||
requireEqual(t, mockSample{ls, s.Timestamp, s.Value}, appendable.samples[i])
|
||||
i++
|
||||
}
|
||||
for _, hp := range ts.Histograms {
|
||||
if hp.IsFloatHistogram() {
|
||||
fh := hp.ToFloatHistogram()
|
||||
requireEqual(t, mockHistogram{ls, hp.Timestamp, nil, fh}, appendable.histograms[k])
|
||||
} else {
|
||||
h := hp.ToIntHistogram()
|
||||
requireEqual(t, mockHistogram{ls, hp.Timestamp, h, nil}, appendable.histograms[k])
|
||||
}
|
||||
k++
|
||||
}
|
||||
if tc.appendExemplarErr == nil {
|
||||
for _, e := range ts.Exemplars {
|
||||
exemplarLabels := e.ToExemplar(&b, writeV2RequestFixture.Symbols).Labels
|
||||
requireEqual(t, mockExemplar{ls, exemplarLabels, e.Timestamp, e.Value}, appendable.exemplars[j])
|
||||
j++
|
||||
}
|
||||
}
|
||||
if tc.updateMetadataErr == nil {
|
||||
expectedMeta := ts.ToMetadata(writeV2RequestFixture.Symbols)
|
||||
requireEqual(t, mockMetadata{ls, expectedMeta}, appendable.metadata[m])
|
||||
m++
|
||||
}
|
||||
}
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
// NOTE: V2 Message is tested in TestRemoteWriteHandler_V2Message.
|
||||
func TestOutOfOrderSample_V1Message(t *testing.T) {
|
||||
for _, tc := range []struct {
|
||||
Name string
|
||||
|
|
@ -372,7 +534,7 @@ func TestOutOfOrderSample_V1Message(t *testing.T) {
|
|||
req, err := http.NewRequest("", "", bytes.NewReader(payload))
|
||||
require.NoError(t, err)
|
||||
|
||||
appendable := &mockAppendable{latestSample: 100}
|
||||
appendable := &mockAppendable{latestSample: map[uint64]int64{labels.FromStrings("__name__", "test_metric").Hash(): 100}}
|
||||
handler := NewWriteHandler(log.NewNopLogger(), nil, appendable, []config.RemoteWriteProtoMsg{config.RemoteWriteProtoMsgV1})
|
||||
|
||||
recorder := httptest.NewRecorder()
|
||||
|
|
@ -384,49 +546,10 @@ func TestOutOfOrderSample_V1Message(t *testing.T) {
|
|||
}
|
||||
}
|
||||
|
||||
func TestOutOfOrderSample_V2Message(t *testing.T) {
|
||||
for _, tc := range []struct {
|
||||
Name string
|
||||
Timestamp int64
|
||||
}{
|
||||
{
|
||||
Name: "historic",
|
||||
Timestamp: 0,
|
||||
},
|
||||
{
|
||||
Name: "future",
|
||||
Timestamp: math.MaxInt64,
|
||||
},
|
||||
} {
|
||||
t.Run(tc.Name, func(t *testing.T) {
|
||||
payload, _, _, err := buildV2WriteRequest(nil, []writev2.TimeSeries{{
|
||||
LabelsRefs: []uint32{1, 2},
|
||||
Samples: []writev2.Sample{{Value: 1, Timestamp: tc.Timestamp}},
|
||||
}}, []string{"", "__name__", "metric1"}, nil, nil, nil, "snappy")
|
||||
require.NoError(t, err)
|
||||
|
||||
req, err := http.NewRequest("", "", bytes.NewReader(payload))
|
||||
require.NoError(t, err)
|
||||
|
||||
req.Header.Set("Content-Type", remoteWriteContentTypeHeaders[config.RemoteWriteProtoMsgV2])
|
||||
req.Header.Set("Content-Encoding", string(SnappyBlockCompression))
|
||||
req.Header.Set(RemoteWriteVersionHeader, RemoteWriteVersion20HeaderValue)
|
||||
|
||||
appendable := &mockAppendable{latestSample: 100}
|
||||
handler := NewWriteHandler(log.NewNopLogger(), nil, appendable, []config.RemoteWriteProtoMsg{config.RemoteWriteProtoMsgV2})
|
||||
|
||||
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 exemplar ingestion errors since the exemplar storage is
|
||||
// still experimental.
|
||||
// NOTE: V2 Message is tested in TestRemoteWriteHandler_V2Message.
|
||||
func TestOutOfOrderExemplar_V1Message(t *testing.T) {
|
||||
tests := []struct {
|
||||
Name string
|
||||
|
|
@ -453,7 +576,7 @@ func TestOutOfOrderExemplar_V1Message(t *testing.T) {
|
|||
req, err := http.NewRequest("", "", bytes.NewReader(payload))
|
||||
require.NoError(t, err)
|
||||
|
||||
appendable := &mockAppendable{latestExemplar: 100}
|
||||
appendable := &mockAppendable{latestSample: map[uint64]int64{labels.FromStrings("__name__", "test_metric").Hash(): 100}}
|
||||
handler := NewWriteHandler(log.NewNopLogger(), nil, appendable, []config.RemoteWriteProtoMsg{config.RemoteWriteProtoMsgV1})
|
||||
|
||||
recorder := httptest.NewRecorder()
|
||||
|
|
@ -466,49 +589,7 @@ func TestOutOfOrderExemplar_V1Message(t *testing.T) {
|
|||
}
|
||||
}
|
||||
|
||||
func TestOutOfOrderExemplar_V2Message(t *testing.T) {
|
||||
tests := []struct {
|
||||
Name string
|
||||
Timestamp int64
|
||||
}{
|
||||
{
|
||||
Name: "historic",
|
||||
Timestamp: 0,
|
||||
},
|
||||
{
|
||||
Name: "future",
|
||||
Timestamp: math.MaxInt64,
|
||||
},
|
||||
}
|
||||
|
||||
for _, tc := range tests {
|
||||
t.Run(tc.Name, func(t *testing.T) {
|
||||
payload, _, _, err := buildV2WriteRequest(nil, []writev2.TimeSeries{{
|
||||
LabelsRefs: []uint32{1, 2},
|
||||
Exemplars: []writev2.Exemplar{{LabelsRefs: []uint32{3, 4}, Value: 1, Timestamp: tc.Timestamp}},
|
||||
}}, []string{"", "__name__", "metric1", "foo", "bar"}, nil, nil, nil, "snappy")
|
||||
require.NoError(t, err)
|
||||
|
||||
req, err := http.NewRequest("", "", bytes.NewReader(payload))
|
||||
require.NoError(t, err)
|
||||
|
||||
req.Header.Set("Content-Type", remoteWriteContentTypeHeaders[config.RemoteWriteProtoMsgV2])
|
||||
req.Header.Set("Content-Encoding", string(SnappyBlockCompression))
|
||||
req.Header.Set(RemoteWriteVersionHeader, RemoteWriteVersion20HeaderValue)
|
||||
|
||||
appendable := &mockAppendable{latestExemplar: 100}
|
||||
handler := NewWriteHandler(log.NewNopLogger(), nil, appendable, []config.RemoteWriteProtoMsg{config.RemoteWriteProtoMsgV2})
|
||||
|
||||
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)
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
// NOTE: V2 Message is tested in TestRemoteWriteHandler_V2Message.
|
||||
func TestOutOfOrderHistogram_V1Message(t *testing.T) {
|
||||
for _, tc := range []struct {
|
||||
Name string
|
||||
|
|
@ -533,7 +614,7 @@ func TestOutOfOrderHistogram_V1Message(t *testing.T) {
|
|||
req, err := http.NewRequest("", "", bytes.NewReader(payload))
|
||||
require.NoError(t, err)
|
||||
|
||||
appendable := &mockAppendable{latestHistogram: 100}
|
||||
appendable := &mockAppendable{latestSample: map[uint64]int64{labels.FromStrings("__name__", "test_metric").Hash(): 100}}
|
||||
handler := NewWriteHandler(log.NewNopLogger(), nil, appendable, []config.RemoteWriteProtoMsg{config.RemoteWriteProtoMsgV1})
|
||||
|
||||
recorder := httptest.NewRecorder()
|
||||
|
|
@ -545,46 +626,6 @@ func TestOutOfOrderHistogram_V1Message(t *testing.T) {
|
|||
}
|
||||
}
|
||||
|
||||
func TestOutOfOrderHistogram_V2Message(t *testing.T) {
|
||||
for _, tc := range []struct {
|
||||
Name string
|
||||
Timestamp int64
|
||||
}{
|
||||
{
|
||||
Name: "historic",
|
||||
Timestamp: 0,
|
||||
},
|
||||
{
|
||||
Name: "future",
|
||||
Timestamp: math.MaxInt64,
|
||||
},
|
||||
} {
|
||||
t.Run(tc.Name, func(t *testing.T) {
|
||||
payload, _, _, err := buildV2WriteRequest(nil, []writev2.TimeSeries{{
|
||||
LabelsRefs: []uint32{0, 1},
|
||||
Histograms: []writev2.Histogram{writev2.FromIntHistogram(0, &testHistogram), writev2.FromFloatHistogram(1, testHistogram.ToFloat(nil))},
|
||||
}}, []string{"__name__", "metric1"}, nil, nil, nil, "snappy")
|
||||
require.NoError(t, err)
|
||||
|
||||
req, err := http.NewRequest("", "", bytes.NewReader(payload))
|
||||
require.NoError(t, err)
|
||||
|
||||
req.Header.Set("Content-Type", remoteWriteContentTypeHeaders[config.RemoteWriteProtoMsgV2])
|
||||
req.Header.Set("Content-Encoding", string(SnappyBlockCompression))
|
||||
req.Header.Set(RemoteWriteVersionHeader, RemoteWriteVersion20HeaderValue)
|
||||
|
||||
appendable := &mockAppendable{latestHistogram: 100}
|
||||
handler := NewWriteHandler(log.NewNopLogger(), nil, appendable, []config.RemoteWriteProtoMsg{config.RemoteWriteProtoMsgV2})
|
||||
|
||||
recorder := httptest.NewRecorder()
|
||||
handler.ServeHTTP(recorder, req)
|
||||
|
||||
resp := recorder.Result()
|
||||
require.Equal(t, http.StatusBadRequest, resp.StatusCode)
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
func BenchmarkRemoteWriteHandler(b *testing.B) {
|
||||
const labelValue = "abcdefg'hijlmn234!@#$%^&*()_+~`\"{}[],./<>?hello0123hiOlá你好Dzieńdobry9Zd8ra765v4stvuyte"
|
||||
var reqs []*http.Request
|
||||
|
|
@ -719,15 +760,20 @@ func genSeriesWithSample(numSeries int, ts int64) []prompb.TimeSeries {
|
|||
}
|
||||
|
||||
type mockAppendable struct {
|
||||
latestSample int64
|
||||
latestSample map[uint64]int64
|
||||
samples []mockSample
|
||||
latestExemplar int64
|
||||
latestExemplar map[uint64]int64
|
||||
exemplars []mockExemplar
|
||||
latestHistogram int64
|
||||
latestHistogram map[uint64]int64
|
||||
histograms []mockHistogram
|
||||
metadata []mockMetadata
|
||||
|
||||
commitErr error
|
||||
// optional errors to inject.
|
||||
commitErr error
|
||||
appendSampleErr error
|
||||
appendHistogramErr error
|
||||
appendExemplarErr error
|
||||
updateMetadataErr error
|
||||
}
|
||||
|
||||
type mockSample struct {
|
||||
|
|
@ -765,48 +811,92 @@ func requireEqual(t *testing.T, expected, actual interface{}, msgAndArgs ...inte
|
|||
}
|
||||
|
||||
func (m *mockAppendable) Appender(_ context.Context) storage.Appender {
|
||||
if m.latestSample == nil {
|
||||
m.latestSample = map[uint64]int64{}
|
||||
}
|
||||
if m.latestHistogram == nil {
|
||||
m.latestHistogram = map[uint64]int64{}
|
||||
}
|
||||
if m.latestExemplar == nil {
|
||||
m.latestExemplar = map[uint64]int64{}
|
||||
}
|
||||
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
|
||||
if m.appendSampleErr != nil {
|
||||
return 0, m.appendSampleErr
|
||||
}
|
||||
|
||||
m.latestSample = t
|
||||
latestTs := m.latestSample[l.Hash()]
|
||||
if t < latestTs {
|
||||
return 0, storage.ErrOutOfOrderSample
|
||||
}
|
||||
if t == latestTs {
|
||||
return 0, storage.ErrDuplicateSampleForTimestamp
|
||||
}
|
||||
|
||||
m.latestSample[l.Hash()] = t
|
||||
m.samples = append(m.samples, mockSample{l, t, v})
|
||||
return 0, nil
|
||||
}
|
||||
|
||||
func (m *mockAppendable) Commit() error {
|
||||
if m.commitErr != nil {
|
||||
_ = m.Rollback() // As per Commit method contract.
|
||||
}
|
||||
return m.commitErr
|
||||
}
|
||||
|
||||
func (*mockAppendable) Rollback() error {
|
||||
return fmt.Errorf("not implemented")
|
||||
func (m *mockAppendable) Rollback() error {
|
||||
m.samples = m.samples[:0]
|
||||
m.exemplars = m.exemplars[:0]
|
||||
m.histograms = m.histograms[:0]
|
||||
m.metadata = m.metadata[:0]
|
||||
return nil
|
||||
}
|
||||
|
||||
func (m *mockAppendable) AppendExemplar(_ storage.SeriesRef, l labels.Labels, e exemplar.Exemplar) (storage.SeriesRef, error) {
|
||||
if e.Ts < m.latestExemplar {
|
||||
return 0, storage.ErrOutOfOrderExemplar
|
||||
if m.appendExemplarErr != nil {
|
||||
return 0, m.appendExemplarErr
|
||||
}
|
||||
|
||||
m.latestExemplar = e.Ts
|
||||
latestTs := m.latestExemplar[l.Hash()]
|
||||
if e.Ts < latestTs {
|
||||
return 0, storage.ErrOutOfOrderExemplar
|
||||
}
|
||||
if e.Ts == latestTs {
|
||||
return 0, storage.ErrDuplicateExemplar
|
||||
}
|
||||
|
||||
m.latestExemplar[l.Hash()] = e.Ts
|
||||
m.exemplars = append(m.exemplars, mockExemplar{l, e.Labels, e.Ts, e.Value})
|
||||
return 0, nil
|
||||
}
|
||||
|
||||
func (m *mockAppendable) AppendHistogram(_ storage.SeriesRef, l labels.Labels, t int64, h *histogram.Histogram, fh *histogram.FloatHistogram) (storage.SeriesRef, error) {
|
||||
if t < m.latestHistogram {
|
||||
return 0, storage.ErrOutOfOrderSample
|
||||
if m.appendHistogramErr != nil {
|
||||
return 0, m.appendHistogramErr
|
||||
}
|
||||
|
||||
m.latestHistogram = t
|
||||
latestTs := m.latestHistogram[l.Hash()]
|
||||
if t < latestTs {
|
||||
return 0, storage.ErrOutOfOrderSample
|
||||
}
|
||||
if t == latestTs {
|
||||
return 0, storage.ErrDuplicateSampleForTimestamp
|
||||
}
|
||||
|
||||
m.latestHistogram[l.Hash()] = t
|
||||
m.histograms = append(m.histograms, mockHistogram{l, t, h, fh})
|
||||
return 0, nil
|
||||
}
|
||||
|
||||
func (m *mockAppendable) UpdateMetadata(_ storage.SeriesRef, l labels.Labels, mp metadata.Metadata) (storage.SeriesRef, error) {
|
||||
if m.updateMetadataErr != nil {
|
||||
return 0, m.updateMetadataErr
|
||||
}
|
||||
|
||||
m.metadata = append(m.metadata, mockMetadata{l: l, m: mp})
|
||||
return 0, nil
|
||||
}
|
||||
|
|
|
|||
|
|
@ -369,7 +369,7 @@ func TestWriteStorageApplyConfig_PartialUpdate(t *testing.T) {
|
|||
}
|
||||
|
||||
func TestOTLPWriteHandler(t *testing.T) {
|
||||
exportRequest := generateOTLPWriteRequest(t)
|
||||
exportRequest := generateOTLPWriteRequest()
|
||||
|
||||
buf, err := exportRequest.MarshalProto()
|
||||
require.NoError(t, err)
|
||||
|
|
@ -392,7 +392,7 @@ func TestOTLPWriteHandler(t *testing.T) {
|
|||
require.Len(t, appendable.exemplars, 1) // 1 (exemplar)
|
||||
}
|
||||
|
||||
func generateOTLPWriteRequest(t *testing.T) pmetricotlp.ExportRequest {
|
||||
func generateOTLPWriteRequest() pmetricotlp.ExportRequest {
|
||||
d := pmetric.NewMetrics()
|
||||
|
||||
// Generate One Counter, One Gauge, One Histogram, One Exponential-Histogram
|
||||
|
|
@ -422,6 +422,7 @@ func generateOTLPWriteRequest(t *testing.T) pmetricotlp.ExportRequest {
|
|||
counterDataPoint.Attributes().PutStr("foo.bar", "baz")
|
||||
|
||||
counterExemplar := counterDataPoint.Exemplars().AppendEmpty()
|
||||
|
||||
counterExemplar.SetTimestamp(pcommon.NewTimestampFromTime(timestamp))
|
||||
counterExemplar.SetDoubleValue(10.0)
|
||||
counterExemplar.SetSpanID(pcommon.SpanID{0, 1, 2, 3, 4, 5, 6, 7})
|
||||
|
|
|
|||
Loading…
Reference in a new issue