frostfs-node/pkg/metrics/engine.go

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package metrics
import (
"time"
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/shard/mode"
"git.frostfs.info/TrueCloudLab/frostfs-observability/metrics"
"github.com/prometheus/client_golang/prometheus"
)
type EngineMetrics interface {
AddMethodDuration(method string, d time.Duration)
AddToContainerSize(cnrID string, size int64)
IncErrorCounter(shardID string)
ClearErrorCounter(shardID string)
DeleteShardMetrics(shardID string)
AddToObjectCounter(shardID, objectType string, delta int)
SetObjectCounter(shardID, objectType string, v uint64)
AddToPayloadCounter(shardID string, size int64)
SetMode(shardID string, mode mode.Mode)
WriteCache() WriteCacheMetrics
GC() GCMetrics
}
type engineMetrics struct {
methodDuration *prometheus.HistogramVec
objectCounter *prometheus.GaugeVec
containerSize *prometheus.GaugeVec
payloadSize *prometheus.GaugeVec
errorCounter *prometheus.GaugeVec
mode *shardIDModeValue
gc *gcMetrics
writeCache *writeCacheMetrics
}
const (
engineSubsystem = "engine"
engineMethod = "method"
)
func newEngineMetrics() *engineMetrics {
return &engineMetrics{
containerSize: newEngineGaugeVector("container_size_bytes", "Accumulated size of all objects in a container", []string{containerIDLabelKey}),
payloadSize: newEngineGaugeVector("payload_size_bytes", "Accumulated size of all objects in a shard", []string{shardIDLabelKey}),
errorCounter: newEngineGaugeVector("errors_total", "Shard's error counter", []string{shardIDLabelKey}),
methodDuration: metrics.NewHistogramVec(prometheus.HistogramOpts{
Namespace: namespace,
Subsystem: engineSubsystem,
Name: "request_duration_seconds",
Help: "Duration of Engine requests",
}, []string{engineMethod}),
objectCounter: newEngineGaugeVector("objects_total", "Objects counters per shards", []string{shardIDLabelKey, counterTypeLabelKey}),
gc: newGCMetrics(),
writeCache: newWriteCacheMetrics(),
mode: newShardIDMode(engineSubsystem, "mode_info", "Shard mode"),
}
}
func newEngineGaugeVector(name, help string, labels []string) *prometheus.GaugeVec {
return metrics.NewGaugeVec(prometheus.GaugeOpts{
Namespace: namespace,
Subsystem: engineSubsystem,
Name: name,
Help: help,
}, labels)
}
func (m *engineMetrics) AddMethodDuration(method string, d time.Duration) {
m.methodDuration.With(prometheus.Labels{
engineMethod: method,
}).Observe(d.Seconds())
}
func (m *engineMetrics) AddToContainerSize(cnrID string, size int64) {
m.containerSize.With(prometheus.Labels{containerIDLabelKey: cnrID}).Add(float64(size))
}
func (m *engineMetrics) AddToPayloadCounter(shardID string, size int64) {
m.payloadSize.With(prometheus.Labels{shardIDLabelKey: shardID}).Add(float64(size))
}
func (m *engineMetrics) IncErrorCounter(shardID string) {
m.errorCounter.With(prometheus.Labels{shardIDLabelKey: shardID}).Inc()
}
func (m *engineMetrics) ClearErrorCounter(shardID string) {
m.errorCounter.With(prometheus.Labels{shardIDLabelKey: shardID}).Set(0)
}
func (m *engineMetrics) DeleteShardMetrics(shardID string) {
m.errorCounter.Delete(prometheus.Labels{shardIDLabelKey: shardID})
m.payloadSize.Delete(prometheus.Labels{shardIDLabelKey: shardID})
m.objectCounter.DeletePartialMatch(prometheus.Labels{shardIDLabelKey: shardID})
m.mode.Delete(shardID)
}
func (m *engineMetrics) AddToObjectCounter(shardID, objectType string, delta int) {
m.objectCounter.With(
prometheus.Labels{
shardIDLabelKey: shardID,
counterTypeLabelKey: objectType,
},
).Add(float64(delta))
}
func (m *engineMetrics) SetObjectCounter(shardID, objectType string, v uint64) {
m.objectCounter.With(
prometheus.Labels{
shardIDLabelKey: shardID,
counterTypeLabelKey: objectType,
},
).Set(float64(v))
}
func (m *engineMetrics) SetMode(shardID string, mode mode.Mode) {
m.mode.SetMode(shardID, mode.String())
}
func (m *engineMetrics) WriteCache() WriteCacheMetrics {
return m.writeCache
}
func (m *engineMetrics) GC() GCMetrics {
return m.gc
}