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64 lines
2.0 KiB
64 lines
2.0 KiB
package mempool
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import (
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"github.com/go-kit/kit/metrics"
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"github.com/go-kit/kit/metrics/discard"
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"github.com/go-kit/kit/metrics/prometheus"
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stdprometheus "github.com/prometheus/client_golang/prometheus"
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)
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const MetricsSubsytem = "mempool"
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// Metrics contains metrics exposed by this package.
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// see MetricsProvider for descriptions.
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type Metrics struct {
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// Size of the mempool.
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Size metrics.Gauge
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// Histogram of transaction sizes, in bytes.
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TxSizeBytes metrics.Histogram
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// Number of failed transactions.
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FailedTxs metrics.Counter
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// Number of times transactions are rechecked in the mempool.
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RecheckTimes metrics.Counter
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}
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// PrometheusMetrics returns Metrics build using Prometheus client library.
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func PrometheusMetrics(namespace string) *Metrics {
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return &Metrics{
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Size: prometheus.NewGaugeFrom(stdprometheus.GaugeOpts{
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Namespace: namespace,
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Subsystem: MetricsSubsytem,
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Name: "size",
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Help: "Size of the mempool (number of uncommitted transactions).",
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}, []string{}),
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TxSizeBytes: prometheus.NewHistogramFrom(stdprometheus.HistogramOpts{
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Namespace: namespace,
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Subsystem: MetricsSubsytem,
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Name: "tx_size_bytes",
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Help: "Transaction sizes in bytes.",
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Buckets: stdprometheus.ExponentialBuckets(1, 3, 17),
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}, []string{}),
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FailedTxs: prometheus.NewCounterFrom(stdprometheus.CounterOpts{
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Namespace: namespace,
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Subsystem: MetricsSubsytem,
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Name: "failed_txs",
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Help: "Number of failed transactions.",
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}, []string{}),
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RecheckTimes: prometheus.NewCounterFrom(stdprometheus.CounterOpts{
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Namespace: namespace,
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Subsystem: MetricsSubsytem,
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Name: "recheck_times",
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Help: "Number of times transactions are rechecked in the mempool.",
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}, []string{}),
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}
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}
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// NopMetrics returns no-op Metrics.
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func NopMetrics() *Metrics {
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return &Metrics{
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Size: discard.NewGauge(),
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TxSizeBytes: discard.NewHistogram(),
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FailedTxs: discard.NewCounter(),
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RecheckTimes: discard.NewCounter(),
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}
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}
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