49 lines
1.2 KiB
Go
49 lines
1.2 KiB
Go
package logger
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import (
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"strconv"
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"git.frostfs.info/TrueCloudLab/frostfs-observability/metrics"
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"github.com/prometheus/client_golang/prometheus"
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"go.uber.org/zap/zapcore"
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)
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const (
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logSubsystem = "logger"
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logLevelLabel = "level"
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logDroppedLabel = "dropped"
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)
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type LogMetrics interface {
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Inc(level zapcore.Level, dropped bool)
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GetSamplingHook() func(e zapcore.Entry, sd zapcore.SamplingDecision)
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}
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type logMetrics struct {
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logCount *prometheus.CounterVec
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}
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func NewLogMetrics(namespace string) LogMetrics {
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return &logMetrics{
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logCount: metrics.NewCounterVec(prometheus.CounterOpts{
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Namespace: namespace,
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Subsystem: logSubsystem,
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Name: "entry_count",
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Help: "Total log entries emitted or dropped by severity level",
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}, []string{logLevelLabel, logDroppedLabel}),
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}
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}
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func (m *logMetrics) Inc(level zapcore.Level, dropped bool) {
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m.logCount.With(prometheus.Labels{
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logLevelLabel: level.String(),
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logDroppedLabel: strconv.FormatBool(dropped),
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}).Inc()
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}
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func (m *logMetrics) GetSamplingHook() func(zapcore.Entry, zapcore.SamplingDecision) {
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return func(e zapcore.Entry, sd zapcore.SamplingDecision) {
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m.Inc(e.Level, sd == zapcore.LogDropped)
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}
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}
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