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WIP: Replace otel_scope_info metric with labels in all metrics #6760

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WIP: Replace otel_scope_info metric with labels in all metrics #6760

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61 changes: 7 additions & 54 deletions exporters/prometheus/exporter.go
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Original file line number Diff line number Diff line change
Expand Up @@ -21,7 +21,6 @@
"go.opentelemetry.io/otel"
"go.opentelemetry.io/otel/attribute"
"go.opentelemetry.io/otel/internal/global"
"go.opentelemetry.io/otel/sdk/instrumentation"
"go.opentelemetry.io/otel/sdk/metric"
"go.opentelemetry.io/otel/sdk/metric/metricdata"
"go.opentelemetry.io/otel/sdk/resource"
Expand All @@ -31,18 +30,20 @@
targetInfoMetricName = "target_info"
targetInfoDescription = "Target metadata"

scopeInfoMetricName = "otel_scope_info"

Check failure on line 33 in exporters/prometheus/exporter.go

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const scopeInfoMetricName is unused (unused)
scopeInfoDescription = "Instrumentation Scope metadata"

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const scopeInfoDescription is unused (unused)

scopeNameLabel = "otel_scope_name"
scopeVersionLabel = "otel_scope_version"

scopeAttributeLabelPrefix = "otel_scope_"

traceIDExemplarKey = "trace_id"
spanIDExemplarKey = "span_id"
)

var (
errScopeInvalid = errors.New("invalid scope")

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var errScopeInvalid is unused (unused)

metricsPool = sync.Pool{
New: func() interface{} {
Expand Down Expand Up @@ -97,8 +98,6 @@
mu sync.Mutex // mu protects all members below from the concurrent access.
disableTargetInfo bool
targetInfo prometheus.Metric
scopeInfos map[instrumentation.Scope]prometheus.Metric
scopeInfosInvalid map[instrumentation.Scope]struct{}
metricFamilies map[string]*dto.MetricFamily
resourceKeyVals keyVals
}
Expand All @@ -122,8 +121,6 @@
withoutUnits: cfg.withoutUnits,
withoutCounterSuffixes: cfg.withoutCounterSuffixes,
disableScopeInfo: cfg.disableScopeInfo,
scopeInfos: make(map[instrumentation.Scope]prometheus.Metric),
scopeInfosInvalid: make(map[instrumentation.Scope]struct{}),
metricFamilies: make(map[string]*dto.MetricFamily),
namespace: cfg.namespace,
resourceAttributesFilter: cfg.resourceAttributesFilter,
Expand Down Expand Up @@ -201,21 +198,12 @@
vals: make([]string, 0, n),
}

if !c.disableScopeInfo {
scopeInfo, err := c.scopeInfo(scopeMetrics.Scope)
if errors.Is(err, errScopeInvalid) {
// Do not report the same error multiple times.
continue
}
if err != nil {
otel.Handle(err)
continue
}
kv.keys = append(kv.keys, scopeNameLabel, scopeVersionLabel)
kv.vals = append(kv.vals, scopeMetrics.Scope.Name, scopeMetrics.Scope.Version)

ch <- scopeInfo

kv.keys = append(kv.keys, scopeNameLabel, scopeVersionLabel)
kv.vals = append(kv.vals, scopeMetrics.Scope.Name, scopeMetrics.Scope.Version)
for _, attr := range scopeMetrics.Scope.Attributes.ToSlice() {
kv.keys = append(kv.keys, scopeAttributeLabelPrefix+string(attr.Key))
kv.vals = append(kv.vals, attr.Value.Emit())
}

kv.keys = append(kv.keys, c.resourceKeyVals.keys...)
Expand Down Expand Up @@ -440,17 +428,6 @@
return prometheus.NewConstMetric(desc, prometheus.GaugeValue, float64(1), values...)
}

func createScopeInfoMetric(scope instrumentation.Scope) (prometheus.Metric, error) {
attrs := make([]attribute.KeyValue, 0, scope.Attributes.Len()+2) // resource attrs + scope name + scope version
attrs = append(attrs, scope.Attributes.ToSlice()...)
attrs = append(attrs, attribute.String(scopeNameLabel, scope.Name))
attrs = append(attrs, attribute.String(scopeVersionLabel, scope.Version))

keys, values := getAttrs(attribute.NewSet(attrs...))
desc := prometheus.NewDesc(scopeInfoMetricName, scopeInfoDescription, keys, nil)
return prometheus.NewConstMetric(desc, prometheus.GaugeValue, float64(1), values...)
}

var unitSuffixes = map[string]string{
// Time
"d": "days",
Expand Down Expand Up @@ -556,30 +533,6 @@
c.resourceKeyVals = keyVals{keys: resourceKeys, vals: resourceValues}
}

func (c *collector) scopeInfo(scope instrumentation.Scope) (prometheus.Metric, error) {
c.mu.Lock()
defer c.mu.Unlock()

scopeInfo, ok := c.scopeInfos[scope]
if ok {
return scopeInfo, nil
}

if _, ok := c.scopeInfosInvalid[scope]; ok {
return nil, errScopeInvalid
}

scopeInfo, err := createScopeInfoMetric(scope)
if err != nil {
c.scopeInfosInvalid[scope] = struct{}{}
return nil, fmt.Errorf("cannot create scope info metric: %w", err)
}

c.scopeInfos[scope] = scopeInfo

return scopeInfo, nil
}

func (c *collector) validateMetrics(name, description string, metricType *dto.MetricType) (drop bool, help string) {
c.mu.Lock()
defer c.mu.Unlock()
Expand Down
4 changes: 0 additions & 4 deletions exporters/prometheus/testdata/conflict_help_two_counters_1.txt
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Expand Up @@ -2,10 +2,6 @@
# TYPE bar_bytes_total counter
bar_bytes_total{otel_scope_name="ma",otel_scope_version="v0.1.0",type="bar"} 100
bar_bytes_total{otel_scope_name="mb",otel_scope_version="v0.1.0",type="bar"} 100
# HELP otel_scope_info Instrumentation Scope metadata
# TYPE otel_scope_info gauge
otel_scope_info{otel_scope_name="ma",otel_scope_version="v0.1.0"} 1
otel_scope_info{otel_scope_name="mb",otel_scope_version="v0.1.0"} 1
# HELP target_info Target metadata
# TYPE target_info gauge
target_info{"service.name"="prometheus_test","telemetry.sdk.language"="go","telemetry.sdk.name"="opentelemetry","telemetry.sdk.version"="latest"} 1
4 changes: 0 additions & 4 deletions exporters/prometheus/testdata/conflict_help_two_counters_2.txt
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Expand Up @@ -2,10 +2,6 @@
# TYPE bar_bytes_total counter
bar_bytes_total{otel_scope_name="ma",otel_scope_version="v0.1.0",type="bar"} 100
bar_bytes_total{otel_scope_name="mb",otel_scope_version="v0.1.0",type="bar"} 100
# HELP otel_scope_info Instrumentation Scope metadata
# TYPE otel_scope_info gauge
otel_scope_info{otel_scope_name="ma",otel_scope_version="v0.1.0"} 1
otel_scope_info{otel_scope_name="mb",otel_scope_version="v0.1.0"} 1
# HELP target_info Target metadata
# TYPE target_info gauge
target_info{"service.name"="prometheus_test","telemetry.sdk.language"="go","telemetry.sdk.name"="opentelemetry","telemetry.sdk.version"="latest"} 1
4 changes: 0 additions & 4 deletions exporters/prometheus/testdata/conflict_help_two_histograms_1.txt
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Expand Up @@ -36,10 +36,6 @@ bar_bytes_bucket{A="B",le="10000",otel_scope_name="mb",otel_scope_version="v0.1.
bar_bytes_bucket{A="B",le="+Inf",otel_scope_name="mb",otel_scope_version="v0.1.0"} 1
bar_bytes_sum{A="B",otel_scope_name="mb",otel_scope_version="v0.1.0"} 100
bar_bytes_count{A="B",otel_scope_name="mb",otel_scope_version="v0.1.0"} 1
# HELP otel_scope_info Instrumentation Scope metadata
# TYPE otel_scope_info gauge
otel_scope_info{otel_scope_name="ma",otel_scope_version="v0.1.0"} 1
otel_scope_info{otel_scope_name="mb",otel_scope_version="v0.1.0"} 1
# HELP target_info Target metadata
# TYPE target_info gauge
target_info{"service.name"="prometheus_test","telemetry.sdk.language"="go","telemetry.sdk.name"="opentelemetry","telemetry.sdk.version"="latest"} 1
4 changes: 0 additions & 4 deletions exporters/prometheus/testdata/conflict_help_two_histograms_2.txt
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Expand Up @@ -36,10 +36,6 @@ bar_bytes_bucket{A="B",le="10000",otel_scope_name="mb",otel_scope_version="v0.1.
bar_bytes_bucket{A="B",le="+Inf",otel_scope_name="mb",otel_scope_version="v0.1.0"} 1
bar_bytes_sum{A="B",otel_scope_name="mb",otel_scope_version="v0.1.0"} 100
bar_bytes_count{A="B",otel_scope_name="mb",otel_scope_version="v0.1.0"} 1
# HELP otel_scope_info Instrumentation Scope metadata
# TYPE otel_scope_info gauge
otel_scope_info{otel_scope_name="ma",otel_scope_version="v0.1.0"} 1
otel_scope_info{otel_scope_name="mb",otel_scope_version="v0.1.0"} 1
# HELP target_info Target metadata
# TYPE target_info gauge
target_info{"service.name"="prometheus_test","telemetry.sdk.language"="go","telemetry.sdk.name"="opentelemetry","telemetry.sdk.version"="latest"} 1
4 changes: 0 additions & 4 deletions exporters/prometheus/testdata/conflict_help_two_updowncounters_1.txt
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Expand Up @@ -2,10 +2,6 @@
# TYPE bar_bytes gauge
bar_bytes{otel_scope_name="ma",otel_scope_version="v0.1.0",type="bar"} 100
bar_bytes{otel_scope_name="mb",otel_scope_version="v0.1.0",type="bar"} 100
# HELP otel_scope_info Instrumentation Scope metadata
# TYPE otel_scope_info gauge
otel_scope_info{otel_scope_name="ma",otel_scope_version="v0.1.0"} 1
otel_scope_info{otel_scope_name="mb",otel_scope_version="v0.1.0"} 1
# HELP target_info Target metadata
# TYPE target_info gauge
target_info{"service.name"="prometheus_test","telemetry.sdk.language"="go","telemetry.sdk.name"="opentelemetry","telemetry.sdk.version"="latest"} 1
4 changes: 0 additions & 4 deletions exporters/prometheus/testdata/conflict_help_two_updowncounters_2.txt
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Expand Up @@ -2,10 +2,6 @@
# TYPE bar_bytes gauge
bar_bytes{otel_scope_name="ma",otel_scope_version="v0.1.0",type="bar"} 100
bar_bytes{otel_scope_name="mb",otel_scope_version="v0.1.0",type="bar"} 100
# HELP otel_scope_info Instrumentation Scope metadata
# TYPE otel_scope_info gauge
otel_scope_info{otel_scope_name="ma",otel_scope_version="v0.1.0"} 1
otel_scope_info{otel_scope_name="mb",otel_scope_version="v0.1.0"} 1
# HELP target_info Target metadata
# TYPE target_info gauge
target_info{"service.name"="prometheus_test","telemetry.sdk.language"="go","telemetry.sdk.name"="opentelemetry","telemetry.sdk.version"="latest"} 1
3 changes: 0 additions & 3 deletions exporters/prometheus/testdata/conflict_type_counter_and_updowncounter_1.txt
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# HELP foo_total meter foo
# TYPE foo_total counter
foo_total{otel_scope_name="ma",otel_scope_version="v0.1.0",type="foo"} 100
# HELP otel_scope_info Instrumentation Scope metadata
# TYPE otel_scope_info gauge
otel_scope_info{otel_scope_name="ma",otel_scope_version="v0.1.0"} 1
# HELP target_info Target metadata
# TYPE target_info gauge
target_info{"service.name"="prometheus_test","telemetry.sdk.language"="go","telemetry.sdk.name"="opentelemetry","telemetry.sdk.version"="latest"} 1
3 changes: 0 additions & 3 deletions exporters/prometheus/testdata/conflict_type_counter_and_updowncounter_2.txt
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# HELP foo_total meter foo
# TYPE foo_total gauge
foo_total{otel_scope_name="ma",otel_scope_version="v0.1.0",type="foo"} 100
# HELP otel_scope_info Instrumentation Scope metadata
# TYPE otel_scope_info gauge
otel_scope_info{otel_scope_name="ma",otel_scope_version="v0.1.0"} 1
# HELP target_info Target metadata
# TYPE target_info gauge
target_info{"service.name"="prometheus_test","telemetry.sdk.language"="go","telemetry.sdk.name"="opentelemetry","telemetry.sdk.version"="latest"} 1
3 changes: 0 additions & 3 deletions exporters/prometheus/testdata/conflict_type_histogram_and_updowncounter_1.txt
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@@ -1,9 +1,6 @@
# HELP foo_bytes meter gauge foo
# TYPE foo_bytes gauge
foo_bytes{A="B",otel_scope_name="ma",otel_scope_version="v0.1.0"} 100
# HELP otel_scope_info Instrumentation Scope metadata
# TYPE otel_scope_info gauge
otel_scope_info{otel_scope_name="ma",otel_scope_version="v0.1.0"} 1
# HELP target_info Target metadata
# TYPE target_info gauge
target_info{"service.name"="prometheus_test","telemetry.sdk.language"="go","telemetry.sdk.name"="opentelemetry","telemetry.sdk.version"="latest"} 1
3 changes: 0 additions & 3 deletions exporters/prometheus/testdata/conflict_type_histogram_and_updowncounter_2.txt
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Expand Up @@ -18,9 +18,6 @@ foo_bytes_bucket{A="B",le="10000",otel_scope_name="ma",otel_scope_version="v0.1.
foo_bytes_bucket{A="B",le="+Inf",otel_scope_name="ma",otel_scope_version="v0.1.0"} 1
foo_bytes_sum{A="B",otel_scope_name="ma",otel_scope_version="v0.1.0"} 100
foo_bytes_count{A="B",otel_scope_name="ma",otel_scope_version="v0.1.0"} 1
# HELP otel_scope_info Instrumentation Scope metadata
# TYPE otel_scope_info gauge
otel_scope_info{otel_scope_name="ma",otel_scope_version="v0.1.0"} 1
# HELP target_info Target metadata
# TYPE target_info gauge
target_info{"service.name"="prometheus_test","telemetry.sdk.language"="go","telemetry.sdk.name"="opentelemetry","telemetry.sdk.version"="latest"} 1
4 changes: 0 additions & 4 deletions exporters/prometheus/testdata/conflict_unit_two_counters.txt
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Expand Up @@ -2,10 +2,6 @@
# TYPE bar_total counter
bar_total{otel_scope_name="ma",otel_scope_version="v0.1.0",type="bar"} 100
bar_total{otel_scope_name="mb",otel_scope_version="v0.1.0",type="bar"} 100
# HELP otel_scope_info Instrumentation Scope metadata
# TYPE otel_scope_info gauge
otel_scope_info{otel_scope_name="ma",otel_scope_version="v0.1.0"} 1
otel_scope_info{otel_scope_name="mb",otel_scope_version="v0.1.0"} 1
# HELP target_info Target metadata
# TYPE target_info gauge
target_info{"service.name"="prometheus_test","telemetry.sdk.language"="go","telemetry.sdk.name"="opentelemetry","telemetry.sdk.version"="latest"} 1
4 changes: 0 additions & 4 deletions exporters/prometheus/testdata/conflict_unit_two_histograms.txt
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Expand Up @@ -36,10 +36,6 @@ bar_bucket{A="B",le="10000",otel_scope_name="mb",otel_scope_version="v0.1.0"} 1
bar_bucket{A="B",le="+Inf",otel_scope_name="mb",otel_scope_version="v0.1.0"} 1
bar_sum{A="B",otel_scope_name="mb",otel_scope_version="v0.1.0"} 100
bar_count{A="B",otel_scope_name="mb",otel_scope_version="v0.1.0"} 1
# HELP otel_scope_info Instrumentation Scope metadata
# TYPE otel_scope_info gauge
otel_scope_info{otel_scope_name="ma",otel_scope_version="v0.1.0"} 1
otel_scope_info{otel_scope_name="mb",otel_scope_version="v0.1.0"} 1
# HELP target_info Target metadata
# TYPE target_info gauge
target_info{"service.name"="prometheus_test","telemetry.sdk.language"="go","telemetry.sdk.name"="opentelemetry","telemetry.sdk.version"="latest"} 1
4 changes: 0 additions & 4 deletions exporters/prometheus/testdata/conflict_unit_two_updowncounters.txt
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Expand Up @@ -2,10 +2,6 @@
# TYPE bar gauge
bar{otel_scope_name="ma",otel_scope_version="v0.1.0",type="bar"} 100
bar{otel_scope_name="mb",otel_scope_version="v0.1.0",type="bar"} 100
# HELP otel_scope_info Instrumentation Scope metadata
# TYPE otel_scope_info gauge
otel_scope_info{otel_scope_name="ma",otel_scope_version="v0.1.0"} 1
otel_scope_info{otel_scope_name="mb",otel_scope_version="v0.1.0"} 1
# HELP target_info Target metadata
# TYPE target_info gauge
target_info{"service.name"="prometheus_test","telemetry.sdk.language"="go","telemetry.sdk.name"="opentelemetry","telemetry.sdk.version"="latest"} 1
7 changes: 2 additions & 5 deletions exporters/prometheus/testdata/counter.txt
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# HELP foo_seconds_total a simple counter
# TYPE foo_seconds_total counter
foo_seconds_total{A="B",C="D",E="true",F="42",otel_scope_name="testmeter",otel_scope_version="v0.1.0"} 24.3
foo_seconds_total{A="D",C="B",E="true",F="42",otel_scope_name="testmeter",otel_scope_version="v0.1.0"} 5
# HELP otel_scope_info Instrumentation Scope metadata
# TYPE otel_scope_info gauge
otel_scope_info{fizz="buzz",otel_scope_name="testmeter",otel_scope_version="v0.1.0"} 1
foo_seconds_total{A="B",C="D",E="true",F="42", otel_scope_fizz="buzz",otel_scope_name="testmeter",otel_scope_version="v0.1.0"} 24.3
foo_seconds_total{A="D",C="B",E="true",F="42", otel_scope_fizz="buzz",otel_scope_name="testmeter",otel_scope_version="v0.1.0"} 5
# HELP target_info Target metadata
# TYPE target_info gauge
target_info{"service.name"="prometheus_test","telemetry.sdk.language"="go","telemetry.sdk.name"="opentelemetry","telemetry.sdk.version"="latest"} 1
7 changes: 2 additions & 5 deletions exporters/prometheus/testdata/counter_disabled_suffix.txt
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# HELP foo_seconds a simple counter without a total suffix
# TYPE foo_seconds counter
foo_seconds{A="B",C="D",E="true",F="42",otel_scope_name="testmeter",otel_scope_version="v0.1.0"} 24.3
foo_seconds{A="D",C="B",E="true",F="42",otel_scope_name="testmeter",otel_scope_version="v0.1.0"} 5
# HELP otel_scope_info Instrumentation Scope metadata
# TYPE otel_scope_info gauge
otel_scope_info{fizz="buzz",otel_scope_name="testmeter",otel_scope_version="v0.1.0"} 1
foo_seconds{A="B",C="D",E="true",F="42", otel_scope_fizz="buzz",otel_scope_name="testmeter",otel_scope_version="v0.1.0"} 24.3
foo_seconds{A="D",C="B",E="true",F="42", otel_scope_fizz="buzz",otel_scope_name="testmeter",otel_scope_version="v0.1.0"} 5
# HELP target_info Target metadata
# TYPE target_info gauge
target_info{"service.name"="prometheus_test","telemetry.sdk.language"="go","telemetry.sdk.name"="opentelemetry","telemetry.sdk.version"="latest"} 1
7 changes: 2 additions & 5 deletions exporters/prometheus/testdata/counter_utf8.txt
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# HELP "foo.things_seconds_total" a simple counter
# TYPE "foo.things_seconds_total" counter
{"foo.things_seconds_total","A.G"="B","C.H"="D","E.I"="true","F.J"="42",otel_scope_name="testmeter",otel_scope_version="v0.1.0"} 24.3
{"foo.things_seconds_total","A.G"="D","C.H"="B","E.I"="true","F.J"="42",otel_scope_name="testmeter",otel_scope_version="v0.1.0"} 5
# HELP otel_scope_info Instrumentation Scope metadata
# TYPE otel_scope_info gauge
otel_scope_info{fizz="buzz",otel_scope_name="testmeter",otel_scope_version="v0.1.0"} 1
{"foo.things_seconds_total","A.G"="B","C.H"="D","E.I"="true","F.J"="42", otel_scope_fizz="buzz",otel_scope_name="testmeter",otel_scope_version="v0.1.0"} 24.3
{"foo.things_seconds_total","A.G"="D","C.H"="B","E.I"="true","F.J"="42", otel_scope_fizz="buzz",otel_scope_name="testmeter",otel_scope_version="v0.1.0"} 5
# HELP target_info Target metadata
# TYPE target_info gauge
target_info{"service.name"="prometheus_test","telemetry.sdk.language"="go","telemetry.sdk.name"="opentelemetry","telemetry.sdk.version"="latest"} 1
7 changes: 2 additions & 5 deletions exporters/prometheus/testdata/counter_with_unit_suffix.txt
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# HELP "foo.seconds_total" a simple counter
# TYPE "foo.seconds_total" counter
{"foo.seconds_total",A="B",C="D",E="true",F="42",otel_scope_name="testmeter",otel_scope_version="v0.1.0"} 24.3
{"foo.seconds_total",A="D",C="B",E="true",F="42",otel_scope_name="testmeter",otel_scope_version="v0.1.0"} 5
# HELP otel_scope_info Instrumentation Scope metadata
# TYPE otel_scope_info gauge
otel_scope_info{fizz="buzz",otel_scope_name="testmeter",otel_scope_version="v0.1.0"} 1
{"foo.seconds_total",A="B",C="D",E="true",F="42", otel_scope_fizz="buzz",otel_scope_name="testmeter",otel_scope_version="v0.1.0"} 24.3
{"foo.seconds_total",A="D",C="B",E="true",F="42", otel_scope_fizz="buzz",otel_scope_name="testmeter",otel_scope_version="v0.1.0"} 5
# HELP target_info Target metadata
# TYPE target_info gauge
target_info{"service.name"="prometheus_test","telemetry.sdk.language"="go","telemetry.sdk.name"="opentelemetry","telemetry.sdk.version"="latest"} 1
5 changes: 1 addition & 4 deletions exporters/prometheus/testdata/custom_resource.txt
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# HELP foo_total a simple counter
# TYPE foo_total counter
foo_total{A="B",C="D",E="true",F="42",otel_scope_name="testmeter",otel_scope_version="v0.1.0"} 24.3
# HELP otel_scope_info Instrumentation Scope metadata
# TYPE otel_scope_info gauge
otel_scope_info{fizz="buzz",otel_scope_name="testmeter",otel_scope_version="v0.1.0"} 1
foo_total{A="B",C="D",E="true",F="42", otel_scope_fizz="buzz",otel_scope_name="testmeter",otel_scope_version="v0.1.0"} 24.3
# HELP target_info Target metadata
# TYPE target_info gauge
target_info{A="B",C="D","service.name"="prometheus_test","telemetry.sdk.language"="go","telemetry.sdk.name"="opentelemetry","telemetry.sdk.version"="latest"} 1
5 changes: 1 addition & 4 deletions exporters/prometheus/testdata/empty_resource.txt
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# HELP foo_total a simple counter
# TYPE foo_total counter
foo_total{A="B",C="D",E="true",F="42",otel_scope_name="testmeter",otel_scope_version="v0.1.0"} 24.3
# HELP otel_scope_info Instrumentation Scope metadata
# TYPE otel_scope_info gauge
otel_scope_info{fizz="buzz",otel_scope_name="testmeter",otel_scope_version="v0.1.0"} 1
foo_total{A="B",C="D",E="true",F="42", otel_scope_fizz="buzz",otel_scope_name="testmeter",otel_scope_version="v0.1.0"} 24.3
# HELP target_info Target metadata
# TYPE target_info gauge
target_info 1
9 changes: 3 additions & 6 deletions exporters/prometheus/testdata/exponential_histogram.txt
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# HELP exponential_histogram_baz_bytes a very nice histogram
# TYPE exponential_histogram_baz_bytes histogram
exponential_histogram_baz_bytes_bucket{A="B",C="D",otel_scope_name="testmeter",otel_scope_version="v0.1.0",le="+Inf"} 4
exponential_histogram_baz_bytes_sum{A="B",C="D",otel_scope_name="testmeter",otel_scope_version="v0.1.0"} 236
exponential_histogram_baz_bytes_count{A="B",C="D",otel_scope_name="testmeter",otel_scope_version="v0.1.0"} 4
# HELP otel_scope_info Instrumentation Scope metadata
# TYPE otel_scope_info gauge
otel_scope_info{fizz="buzz",otel_scope_name="testmeter",otel_scope_version="v0.1.0"} 1
exponential_histogram_baz_bytes_bucket{A="B",C="D", otel_scope_fizz="buzz",otel_scope_name="testmeter",otel_scope_version="v0.1.0",le="+Inf"} 4
exponential_histogram_baz_bytes_sum{A="B",C="D", otel_scope_fizz="buzz",otel_scope_name="testmeter",otel_scope_version="v0.1.0"} 236
exponential_histogram_baz_bytes_count{A="B",C="D", otel_scope_fizz="buzz",otel_scope_name="testmeter",otel_scope_version="v0.1.0"} 4
# HELP target_info Target metadata
# TYPE target_info gauge
target_info{"service.name"="prometheus_test","telemetry.sdk.language"="go","telemetry.sdk.name"="opentelemetry","telemetry.sdk.version"="latest"} 1
5 changes: 1 addition & 4 deletions exporters/prometheus/testdata/gauge.txt
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# HELP bar_ratio a fun little gauge
# TYPE bar_ratio gauge
bar_ratio{A="B",C="D",otel_scope_name="testmeter",otel_scope_version="v0.1.0"} .75
# HELP otel_scope_info Instrumentation Scope metadata
# TYPE otel_scope_info gauge
otel_scope_info{fizz="buzz",otel_scope_name="testmeter",otel_scope_version="v0.1.0"} 1
bar_ratio{A="B",C="D", otel_scope_fizz="buzz",otel_scope_name="testmeter",otel_scope_version="v0.1.0"} .75
# HELP target_info Target metadata
# TYPE target_info gauge
target_info{"service.name"="prometheus_test","telemetry.sdk.language"="go","telemetry.sdk.name"="opentelemetry","telemetry.sdk.version"="latest"} 1
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