51 lines
1.7 KiB
Go
51 lines
1.7 KiB
Go
// Copyright 2020 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package rpc
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import (
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"fmt"
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"time"
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"github.com/ethereum/go-ethereum/metrics"
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)
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var (
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rpcRequestGauge = metrics.NewRegisteredGauge("rpc/requests", nil)
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successfulRequestGauge = metrics.NewRegisteredGauge("rpc/success", nil)
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failedRequestGauge = metrics.NewRegisteredGauge("rpc/failure", nil)
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// serveTimeHistName is the prefix of the per-request serving time histograms.
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serveTimeHistName = "rpc/duration"
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rpcServingTimer = metrics.NewRegisteredTimer("rpc/duration/all", nil)
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)
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// updateServeTimeHistogram tracks the serving time of a remote RPC call.
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func updateServeTimeHistogram(method string, success bool, elapsed time.Duration) {
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note := "success"
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if !success {
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note = "failure"
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}
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h := fmt.Sprintf("%s/%s/%s", serveTimeHistName, method, note)
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sampler := func() metrics.Sample {
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return metrics.ResettingSample(
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metrics.NewExpDecaySample(1028, 0.015),
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)
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}
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metrics.GetOrRegisterHistogramLazy(h, nil, sampler).Update(elapsed.Microseconds())
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}
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