forked from TrueCloudLab/frostfs-node
[#164] metrics: Allow to export metrics description
Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>fix/container_not_found
parent
4ade5339da
commit
6fef2726b8
2
go.mod
2
go.mod
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@ -24,6 +24,7 @@ require (
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github.com/panjf2000/ants/v2 v2.4.0
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github.com/paulmach/orb v0.2.2
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github.com/prometheus/client_golang v1.15.0
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github.com/prometheus/client_model v0.3.0
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github.com/spf13/cast v1.5.0
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github.com/spf13/cobra v1.6.1
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github.com/spf13/pflag v1.0.5
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@ -85,7 +86,6 @@ require (
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github.com/nspcc-dev/rfc6979 v0.2.0 // indirect
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github.com/pelletier/go-toml/v2 v2.0.7 // indirect
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github.com/pmezard/go-difflib v1.0.0 // indirect
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github.com/prometheus/client_model v0.3.0 // indirect
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github.com/prometheus/common v0.42.0 // indirect
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github.com/prometheus/procfs v0.9.0 // indirect
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github.com/russross/blackfriday/v2 v2.1.0 // indirect
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@ -0,0 +1,71 @@
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package metrics
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import (
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"github.com/prometheus/client_golang/prometheus"
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dto "github.com/prometheus/client_model/go"
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)
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type metric[T prometheus.Collector] struct {
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value T
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desc Description
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}
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// Descriptions contains metric description suitable for further processing.
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// The only reason for it to exist is `prometheus.Desc` disallowing field access directly.
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// https://github.com/prometheus/client_golang/pull/326
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// https://github.com/prometheus/client_golang/issues/516
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// https://github.com/prometheus/client_golang/issues/222
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type Description struct {
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Name string `json:"name"`
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Help string `json:"help"`
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Type string `json:"type"`
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ConstantLabels prometheus.Labels `json:"constant_labels,omitempty"`
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VariableLabels []string `json:"variable_labels,omitempty"`
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}
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func newGauge(opts prometheus.GaugeOpts) metric[prometheus.Gauge] {
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return metric[prometheus.Gauge]{
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value: prometheus.NewGauge(opts),
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desc: Description{
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Name: prometheus.BuildFQName(opts.Namespace, opts.Subsystem, opts.Name),
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Type: dto.MetricType_GAUGE.String(),
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Help: opts.Help,
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ConstantLabels: opts.ConstLabels,
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},
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}
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}
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func newGaugeVec(opts prometheus.GaugeOpts, labelNames []string) metric[*prometheus.GaugeVec] {
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return metric[*prometheus.GaugeVec]{
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value: prometheus.NewGaugeVec(opts, labelNames),
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desc: Description{
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Name: prometheus.BuildFQName(opts.Namespace, opts.Subsystem, opts.Name),
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Type: dto.MetricType_GAUGE.String(),
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Help: opts.Help,
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ConstantLabels: opts.ConstLabels,
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VariableLabels: labelNames,
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},
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}
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}
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func newCounter(opts prometheus.CounterOpts) metric[prometheus.Counter] {
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return metric[prometheus.Counter]{
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value: prometheus.NewCounter(opts),
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desc: Description{
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Name: prometheus.BuildFQName(opts.Namespace, opts.Subsystem, opts.Name),
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Type: dto.MetricType_COUNTER.String(),
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Help: opts.Help,
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ConstantLabels: opts.ConstLabels,
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},
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}
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}
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// DescribeAll returns descriptions for all registered metrics.
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func DescribeAll() ([]Description, error) {
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registeredDescriptionsMtx.Lock()
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defer registeredDescriptionsMtx.Unlock()
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ds := make([]Description, len(registeredDescriptions))
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copy(ds, registeredDescriptions)
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return ds, nil
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}
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@ -0,0 +1,65 @@
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package metrics
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import (
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"strings"
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"testing"
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"github.com/prometheus/client_golang/prometheus"
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"github.com/stretchr/testify/require"
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)
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func TestDescribeAll(t *testing.T) {
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const (
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namespace = "my_ns"
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subsystem = "mysub"
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)
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mustRegister(newCounter(prometheus.CounterOpts{
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Namespace: namespace,
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Subsystem: subsystem,
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Name: "my_counter",
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}))
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labels := []string{"label1", "label2"}
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mustRegister(newGaugeVec(prometheus.GaugeOpts{
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Namespace: namespace,
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Subsystem: subsystem,
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Name: "my_gauge",
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}, labels))
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constLabels := prometheus.Labels{
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"const1": "abc",
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"const2": "xyz",
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}
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mustRegister(newCounter(prometheus.CounterOpts{
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Namespace: namespace,
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Subsystem: subsystem,
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Name: "with_const_labels",
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ConstLabels: constLabels,
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}))
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descriptions, err := DescribeAll()
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require.NoError(t, err)
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seen := make(map[string]bool)
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for i := range descriptions {
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if !strings.HasPrefix(descriptions[i].Name, namespace) {
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continue
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}
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require.False(t, seen[descriptions[i].Name], "metric %s was seen twice", descriptions[i].Name)
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seen[descriptions[i].Name] = true
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switch descriptions[i].Name {
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case prometheus.BuildFQName(namespace, subsystem, "my_counter"):
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require.True(t, len(descriptions[i].VariableLabels) == 0)
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case prometheus.BuildFQName(namespace, subsystem, "my_gauge"):
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require.Equal(t, labels, descriptions[i].VariableLabels)
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case prometheus.BuildFQName(namespace, subsystem, "with_const_labels"):
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require.Equal(t, len(constLabels), len(descriptions[i].ConstantLabels))
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require.Equal(t, constLabels, descriptions[i].ConstantLabels)
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default:
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require.FailNow(t, "unexpected metric name: %s", descriptions[i].Name)
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}
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}
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require.Equal(t, 3, len(seen), "not all registered metrics were iterated over")
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}
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@ -10,19 +10,19 @@ import (
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type (
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engineMetrics struct {
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listContainersDuration prometheus.Counter
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estimateContainerSizeDuration prometheus.Counter
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deleteDuration prometheus.Counter
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existsDuration prometheus.Counter
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getDuration prometheus.Counter
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headDuration prometheus.Counter
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inhumeDuration prometheus.Counter
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putDuration prometheus.Counter
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rangeDuration prometheus.Counter
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searchDuration prometheus.Counter
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listObjectsDuration prometheus.Counter
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containerSize prometheus.GaugeVec
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payloadSize prometheus.GaugeVec
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listContainersDuration metric[prometheus.Counter]
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estimateContainerSizeDuration metric[prometheus.Counter]
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deleteDuration metric[prometheus.Counter]
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existsDuration metric[prometheus.Counter]
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getDuration metric[prometheus.Counter]
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headDuration metric[prometheus.Counter]
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inhumeDuration metric[prometheus.Counter]
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putDuration metric[prometheus.Counter]
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rangeDuration metric[prometheus.Counter]
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searchDuration metric[prometheus.Counter]
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listObjectsDuration metric[prometheus.Counter]
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containerSize metric[*prometheus.GaugeVec]
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payloadSize metric[*prometheus.GaugeVec]
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}
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)
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@ -41,13 +41,13 @@ func newEngineMetrics() engineMetrics {
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rangeDuration: newEngineMethodDurationCounter("range"),
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searchDuration: newEngineMethodDurationCounter("search"),
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listObjectsDuration: newEngineMethodDurationCounter("list_objects"),
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containerSize: *newEngineGaugeVector("container_size", "Accumulated size of all objects in a container", []string{containerIDLabelKey}),
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payloadSize: *newEngineGaugeVector("payload_size", "Accumulated size of all objects in a shard", []string{shardIDLabelKey}),
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containerSize: newEngineGaugeVector("container_size", "Accumulated size of all objects in a container", []string{containerIDLabelKey}),
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payloadSize: newEngineGaugeVector("payload_size", "Accumulated size of all objects in a shard", []string{shardIDLabelKey}),
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}
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}
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func newEngineCounter(name, help string) prometheus.Counter {
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return prometheus.NewCounter(prometheus.CounterOpts{
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func newEngineCounter(name, help string) metric[prometheus.Counter] {
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return newCounter(prometheus.CounterOpts{
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Namespace: namespace,
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Subsystem: engineSubsystem,
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Name: name,
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@ -55,15 +55,15 @@ func newEngineCounter(name, help string) prometheus.Counter {
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})
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}
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func newEngineMethodDurationCounter(method string) prometheus.Counter {
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func newEngineMethodDurationCounter(method string) metric[prometheus.Counter] {
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return newEngineCounter(
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fmt.Sprintf("%s_duration", method),
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fmt.Sprintf("Accumulated duration of engine %s operations", strings.ReplaceAll(method, "_", " ")),
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)
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}
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func newEngineGaugeVector(name, help string, labels []string) *prometheus.GaugeVec {
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return prometheus.NewGaugeVec(prometheus.GaugeOpts{
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func newEngineGaugeVector(name, help string, labels []string) metric[*prometheus.GaugeVec] {
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return newGaugeVec(prometheus.GaugeOpts{
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Namespace: namespace,
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Subsystem: engineSubsystem,
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Name: name,
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@ -88,53 +88,53 @@ func (m engineMetrics) register() {
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}
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func (m engineMetrics) AddListContainersDuration(d time.Duration) {
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m.listObjectsDuration.Add(float64(d))
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m.listObjectsDuration.value.Add(float64(d))
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}
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func (m engineMetrics) AddEstimateContainerSizeDuration(d time.Duration) {
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m.estimateContainerSizeDuration.Add(float64(d))
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m.estimateContainerSizeDuration.value.Add(float64(d))
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}
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func (m engineMetrics) AddDeleteDuration(d time.Duration) {
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m.deleteDuration.Add(float64(d))
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m.deleteDuration.value.Add(float64(d))
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}
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func (m engineMetrics) AddExistsDuration(d time.Duration) {
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m.existsDuration.Add(float64(d))
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m.existsDuration.value.Add(float64(d))
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}
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func (m engineMetrics) AddGetDuration(d time.Duration) {
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m.getDuration.Add(float64(d))
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m.getDuration.value.Add(float64(d))
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}
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func (m engineMetrics) AddHeadDuration(d time.Duration) {
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m.headDuration.Add(float64(d))
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m.headDuration.value.Add(float64(d))
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}
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func (m engineMetrics) AddInhumeDuration(d time.Duration) {
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m.inhumeDuration.Add(float64(d))
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m.inhumeDuration.value.Add(float64(d))
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}
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func (m engineMetrics) AddPutDuration(d time.Duration) {
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m.putDuration.Add(float64(d))
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m.putDuration.value.Add(float64(d))
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}
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func (m engineMetrics) AddRangeDuration(d time.Duration) {
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m.rangeDuration.Add(float64(d))
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m.rangeDuration.value.Add(float64(d))
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}
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func (m engineMetrics) AddSearchDuration(d time.Duration) {
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m.searchDuration.Add(float64(d))
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m.searchDuration.value.Add(float64(d))
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}
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func (m engineMetrics) AddListObjectsDuration(d time.Duration) {
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m.listObjectsDuration.Add(float64(d))
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m.listObjectsDuration.value.Add(float64(d))
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}
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func (m engineMetrics) AddToContainerSize(cnrID string, size int64) {
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m.containerSize.With(prometheus.Labels{containerIDLabelKey: cnrID}).Add(float64(size))
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m.containerSize.value.With(prometheus.Labels{containerIDLabelKey: cnrID}).Add(float64(size))
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}
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func (m engineMetrics) AddToPayloadCounter(shardID string, size int64) {
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m.payloadSize.With(prometheus.Labels{shardIDLabelKey: shardID}).Add(float64(size))
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m.payloadSize.value.With(prometheus.Labels{shardIDLabelKey: shardID}).Add(float64(size))
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}
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@ -6,20 +6,20 @@ const innerRingSubsystem = "ir"
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// InnerRingServiceMetrics contains metrics collected by inner ring.
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type InnerRingServiceMetrics struct {
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epoch prometheus.Gauge
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health prometheus.Gauge
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epoch metric[prometheus.Gauge]
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health metric[prometheus.Gauge]
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}
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// NewInnerRingMetrics returns new instance of metrics collectors for inner ring.
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func NewInnerRingMetrics() InnerRingServiceMetrics {
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var (
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epoch = prometheus.NewGauge(prometheus.GaugeOpts{
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epoch = newGauge(prometheus.GaugeOpts{
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Namespace: namespace,
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Subsystem: innerRingSubsystem,
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Name: "epoch",
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Help: "Current epoch as seen by inner-ring node.",
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})
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health = prometheus.NewGauge(prometheus.GaugeOpts{
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health = newGauge(prometheus.GaugeOpts{
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Namespace: namespace,
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Subsystem: innerRingSubsystem,
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Name: "health",
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@ -38,10 +38,10 @@ func NewInnerRingMetrics() InnerRingServiceMetrics {
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// SetEpoch updates epoch metrics.
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func (m InnerRingServiceMetrics) SetEpoch(epoch uint64) {
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m.epoch.Set(float64(epoch))
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m.epoch.value.Set(float64(epoch))
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}
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// SetHealth updates health metrics.
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func (m InnerRingServiceMetrics) SetHealth(s int32) {
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m.health.Set(float64(s))
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m.health.value.Set(float64(s))
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}
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@ -8,7 +8,7 @@ type NodeMetrics struct {
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objectServiceMetrics
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engineMetrics
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stateMetrics
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epoch prometheus.Gauge
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epoch metric[prometheus.Gauge]
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}
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func NewNodeMetrics() *NodeMetrics {
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@ -21,7 +21,7 @@ func NewNodeMetrics() *NodeMetrics {
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state := newStateMetrics()
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state.register()
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epoch := prometheus.NewGauge(prometheus.GaugeOpts{
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epoch := newGauge(prometheus.GaugeOpts{
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Namespace: namespace,
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Subsystem: innerRingSubsystem,
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Name: "epoch",
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@ -39,5 +39,5 @@ func NewNodeMetrics() *NodeMetrics {
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// SetEpoch updates epoch metric.
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func (m *NodeMetrics) SetEpoch(epoch uint64) {
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m.epoch.Set(float64(epoch))
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m.epoch.value.Set(float64(epoch))
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}
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@ -12,8 +12,8 @@ const objectSubsystem = "object"
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type (
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methodCount struct {
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success prometheus.Counter
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total prometheus.Counter
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success metric[prometheus.Counter]
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total metric[prometheus.Counter]
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}
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objectServiceMetrics struct {
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@ -25,19 +25,19 @@ type (
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rangeCounter methodCount
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rangeHashCounter methodCount
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getDuration prometheus.Counter
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putDuration prometheus.Counter
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headDuration prometheus.Counter
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searchDuration prometheus.Counter
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deleteDuration prometheus.Counter
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rangeDuration prometheus.Counter
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rangeHashDuration prometheus.Counter
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getDuration metric[prometheus.Counter]
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putDuration metric[prometheus.Counter]
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headDuration metric[prometheus.Counter]
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searchDuration metric[prometheus.Counter]
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deleteDuration metric[prometheus.Counter]
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rangeDuration metric[prometheus.Counter]
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rangeHashDuration metric[prometheus.Counter]
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putPayload prometheus.Counter
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getPayload prometheus.Counter
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putPayload metric[prometheus.Counter]
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getPayload metric[prometheus.Counter]
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shardMetrics *prometheus.GaugeVec
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shardsReadonly *prometheus.GaugeVec
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shardMetrics metric[*prometheus.GaugeVec]
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shardsReadonly metric[*prometheus.GaugeVec]
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}
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)
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@ -49,13 +49,13 @@ const (
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func newObjectMethodCallCounter(name string) methodCount {
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return methodCount{
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success: prometheus.NewCounter(prometheus.CounterOpts{
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success: newCounter(prometheus.CounterOpts{
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Namespace: namespace,
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Subsystem: objectSubsystem,
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Name: fmt.Sprintf("%s_req_count_success", name),
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Help: fmt.Sprintf("The number of successful %s requests processed", name),
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}),
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total: prometheus.NewCounter(prometheus.CounterOpts{
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total: newCounter(prometheus.CounterOpts{
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Namespace: namespace,
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Subsystem: objectSubsystem,
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Name: fmt.Sprintf("%s_req_count", name),
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@ -70,9 +70,9 @@ func (m methodCount) mustRegister() {
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}
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func (m methodCount) Inc(success bool) {
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m.total.Inc()
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m.total.value.Inc()
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if success {
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m.success.Inc()
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m.success.value.Inc()
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}
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}
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@ -99,8 +99,8 @@ func newObjectServiceMetrics() objectServiceMetrics {
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}
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}
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func newObjectMethodPayloadCounter(method string) prometheus.Counter {
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return prometheus.NewCounter(prometheus.CounterOpts{
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func newObjectMethodPayloadCounter(method string) metric[prometheus.Counter] {
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return newCounter(prometheus.CounterOpts{
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Namespace: namespace,
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Subsystem: objectSubsystem,
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Name: fmt.Sprintf("%s_payload", method),
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@ -108,8 +108,8 @@ func newObjectMethodPayloadCounter(method string) prometheus.Counter {
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})
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}
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func newObjectMethodDurationCounter(method string) prometheus.Counter {
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return prometheus.NewCounter(prometheus.CounterOpts{
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func newObjectMethodDurationCounter(method string) metric[prometheus.Counter] {
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return newCounter(prometheus.CounterOpts{
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Namespace: namespace,
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Subsystem: objectSubsystem,
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Name: fmt.Sprintf("%s_req_duration", method),
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@ -117,8 +117,8 @@ func newObjectMethodDurationCounter(method string) prometheus.Counter {
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|||
})
|
||||
}
|
||||
|
||||
func newObjectGaugeVector(name, help string, labels []string) *prometheus.GaugeVec {
|
||||
return prometheus.NewGaugeVec(prometheus.GaugeOpts{
|
||||
func newObjectGaugeVector(name, help string, labels []string) metric[*prometheus.GaugeVec] {
|
||||
return newGaugeVec(prometheus.GaugeOpts{
|
||||
Namespace: namespace,
|
||||
Subsystem: objectSubsystem,
|
||||
Name: name,
|
||||
|
|
@ -179,43 +179,43 @@ func (m objectServiceMetrics) IncRangeHashReqCounter(success bool) {
|
|||
}
|
||||
|
||||
func (m objectServiceMetrics) AddGetReqDuration(d time.Duration) {
|
||||
m.getDuration.Add(float64(d))
|
||||
m.getDuration.value.Add(float64(d))
|
||||
}
|
||||
|
||||
func (m objectServiceMetrics) AddPutReqDuration(d time.Duration) {
|
||||
m.putDuration.Add(float64(d))
|
||||
m.putDuration.value.Add(float64(d))
|
||||
}
|
||||
|
||||
func (m objectServiceMetrics) AddHeadReqDuration(d time.Duration) {
|
||||
m.headDuration.Add(float64(d))
|
||||
m.headDuration.value.Add(float64(d))
|
||||
}
|
||||
|
||||
func (m objectServiceMetrics) AddSearchReqDuration(d time.Duration) {
|
||||
m.searchDuration.Add(float64(d))
|
||||
m.searchDuration.value.Add(float64(d))
|
||||
}
|
||||
|
||||
func (m objectServiceMetrics) AddDeleteReqDuration(d time.Duration) {
|
||||
m.deleteDuration.Add(float64(d))
|
||||
m.deleteDuration.value.Add(float64(d))
|
||||
}
|
||||
|
||||
func (m objectServiceMetrics) AddRangeReqDuration(d time.Duration) {
|
||||
m.rangeDuration.Add(float64(d))
|
||||
m.rangeDuration.value.Add(float64(d))
|
||||
}
|
||||
|
||||
func (m objectServiceMetrics) AddRangeHashReqDuration(d time.Duration) {
|
||||
m.rangeHashDuration.Add(float64(d))
|
||||
m.rangeHashDuration.value.Add(float64(d))
|
||||
}
|
||||
|
||||
func (m objectServiceMetrics) AddPutPayload(ln int) {
|
||||
m.putPayload.Add(float64(ln))
|
||||
m.putPayload.value.Add(float64(ln))
|
||||
}
|
||||
|
||||
func (m objectServiceMetrics) AddGetPayload(ln int) {
|
||||
m.getPayload.Add(float64(ln))
|
||||
m.getPayload.value.Add(float64(ln))
|
||||
}
|
||||
|
||||
func (m objectServiceMetrics) AddToObjectCounter(shardID, objectType string, delta int) {
|
||||
m.shardMetrics.With(
|
||||
m.shardMetrics.value.With(
|
||||
prometheus.Labels{
|
||||
shardIDLabelKey: shardID,
|
||||
counterTypeLabelKey: objectType,
|
||||
|
|
@ -224,7 +224,7 @@ func (m objectServiceMetrics) AddToObjectCounter(shardID, objectType string, del
|
|||
}
|
||||
|
||||
func (m objectServiceMetrics) SetObjectCounter(shardID, objectType string, v uint64) {
|
||||
m.shardMetrics.With(
|
||||
m.shardMetrics.value.With(
|
||||
prometheus.Labels{
|
||||
shardIDLabelKey: shardID,
|
||||
counterTypeLabelKey: objectType,
|
||||
|
|
@ -237,7 +237,7 @@ func (m objectServiceMetrics) SetReadonly(shardID string, readonly bool) {
|
|||
if readonly {
|
||||
flag = 1
|
||||
}
|
||||
m.shardsReadonly.With(
|
||||
m.shardsReadonly.value.With(
|
||||
prometheus.Labels{
|
||||
shardIDLabelKey: shardID,
|
||||
},
|
||||
|
|
|
|||
|
|
@ -19,22 +19,24 @@ func Handler() http.Handler {
|
|||
|
||||
var (
|
||||
registry = prometheus.NewRegistry()
|
||||
// registeredCollectorsMtx protects collectors slice.
|
||||
// registeredDescriptionsMtx protects collectors slice.
|
||||
// It should not be acessed concurrently, but we can easily forget this in future, thus this mutex.
|
||||
registeredCollectorsMtx sync.Mutex
|
||||
registeredCollectors []prometheus.Collector
|
||||
registeredDescriptionsMtx sync.Mutex
|
||||
registeredDescriptions []Description
|
||||
)
|
||||
|
||||
func init() {
|
||||
mustRegister(collectors.NewProcessCollector(collectors.ProcessCollectorOpts{}))
|
||||
mustRegister(collectors.NewGoCollector())
|
||||
registry.MustRegister(collectors.NewProcessCollector(collectors.ProcessCollectorOpts{}))
|
||||
registry.MustRegister(collectors.NewGoCollector())
|
||||
}
|
||||
|
||||
func mustRegister(cs ...prometheus.Collector) {
|
||||
func mustRegister[T prometheus.Collector](cs ...metric[T]) {
|
||||
for i := range cs {
|
||||
registry.MustRegister(cs[i])
|
||||
registry.MustRegister(cs[i].value)
|
||||
}
|
||||
registeredCollectorsMtx.Lock()
|
||||
registeredCollectors = append(registeredCollectors, cs...)
|
||||
registeredCollectorsMtx.Unlock()
|
||||
registeredDescriptionsMtx.Lock()
|
||||
for i := range cs {
|
||||
registeredDescriptions = append(registeredDescriptions, cs[i].desc)
|
||||
}
|
||||
registeredDescriptionsMtx.Unlock()
|
||||
}
|
||||
|
|
|
|||
|
|
@ -5,12 +5,12 @@ import "github.com/prometheus/client_golang/prometheus"
|
|||
const stateSubsystem = "state"
|
||||
|
||||
type stateMetrics struct {
|
||||
healthCheck prometheus.Gauge
|
||||
healthCheck metric[prometheus.Gauge]
|
||||
}
|
||||
|
||||
func newStateMetrics() stateMetrics {
|
||||
return stateMetrics{
|
||||
healthCheck: prometheus.NewGauge(prometheus.GaugeOpts{
|
||||
healthCheck: newGauge(prometheus.GaugeOpts{
|
||||
Namespace: namespace,
|
||||
Subsystem: stateSubsystem,
|
||||
Name: "health",
|
||||
|
|
@ -24,5 +24,5 @@ func (m stateMetrics) register() {
|
|||
}
|
||||
|
||||
func (m stateMetrics) SetHealth(s int32) {
|
||||
m.healthCheck.Set(float64(s))
|
||||
m.healthCheck.value.Set(float64(s))
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue