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metrics.go
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metrics.go
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// (c) 2019-2020, Ava Labs, Inc. All rights reserved.
// See the file LICENSE for licensing terms.
package snowman
import (
"github.com/prometheus/client_golang/prometheus"
"github.com/ava-labs/avalanchego/utils/metric"
"github.com/ava-labs/avalanchego/utils/wrappers"
)
type metrics struct {
numRequests, numBlocked, numBlockers prometheus.Gauge
numBuilt, numBuildsFailed prometheus.Counter
getAncestorsBlks metric.Averager
}
// Initialize the metrics
func (m *metrics) Initialize(namespace string, reg prometheus.Registerer) error {
errs := wrappers.Errs{}
m.numRequests = prometheus.NewGauge(prometheus.GaugeOpts{
Namespace: namespace,
Name: "requests",
Help: "Number of outstanding block requests",
})
m.numBlocked = prometheus.NewGauge(prometheus.GaugeOpts{
Namespace: namespace,
Name: "blocked",
Help: "Number of blocks that are pending issuance",
})
m.numBlockers = prometheus.NewGauge(prometheus.GaugeOpts{
Namespace: namespace,
Name: "blockers",
Help: "Number of blocks that are blocking other blocks from being issued because they haven't been issued",
})
m.numBuilt = prometheus.NewCounter(prometheus.CounterOpts{
Namespace: namespace,
Name: "blks_built",
Help: "Number of blocks that have been built locally",
})
m.numBuildsFailed = prometheus.NewCounter(prometheus.CounterOpts{
Namespace: namespace,
Name: "blk_builds_failed",
Help: "Number of BuildBlock calls that have failed",
})
m.getAncestorsBlks = metric.NewAveragerWithErrs(
namespace,
"get_ancestors_blks",
"blocks fetched in a call to GetAncestors",
reg,
&errs,
)
errs.Add(
reg.Register(m.numRequests),
reg.Register(m.numBlocked),
reg.Register(m.numBlockers),
reg.Register(m.numBuilt),
reg.Register(m.numBuildsFailed),
)
return errs.Err
}