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// Copyright 2018 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package metrics
import (
"time"
"github.com/ethereum/go-ethereum/cmd/utils"
"github.com/ethereum/go-ethereum/log"
gethmetrics "github.com/ethereum/go-ethereum/metrics"
"github.com/ethereum/go-ethereum/metrics/influxdb"
"gopkg.in/urfave/cli.v1"
)
var (
metricsInfluxDBEndpointFlag = cli.StringFlag{
Name: "metrics.influxdb.endpoint",
Usage: "Metrics InfluxDB endpoint",
Value: "http://127.0.0.1:8086",
}
metricsInfluxDBDatabaseFlag = cli.StringFlag{
Name: "metrics.influxdb.database",
Usage: "metrics InfluxDB database",
Value: "metrics",
}
metricsInfluxDBUsernameFlag = cli.StringFlag{
Name: "metrics.influxdb.username",
Usage: "metrics InfluxDB username",
Value: "",
}
metricsInfluxDBPasswordFlag = cli.StringFlag{
Name: "metrics.influxdb.password",
Usage: "metrics InfluxDB password",
Value: "",
}
// The `host` tag is part of every measurement sent to InfluxDB. Queries on tags are faster in InfluxDB.
// It is used so that we can group all nodes and average a measurement across all of them, but also so
// that we can select a specific node and inspect its measurements.
// https://docs.influxdata.com/influxdb/v1.4/concepts/key_concepts/#tag-key
metricsInfluxDBHostTagFlag = cli.StringFlag{
Name: "metrics.influxdb.host.tag",
Usage: "metrics InfluxDB `host` tag attached to all measurements",
Value: "localhost",
}
)
// Flags holds all command-line flags required for metrics collection.
var Flags = []cli.Flag{
utils.MetricsEnabledFlag,
metricsInfluxDBEndpointFlag, metricsInfluxDBDatabaseFlag, metricsInfluxDBUsernameFlag, metricsInfluxDBPasswordFlag, metricsInfluxDBHostTagFlag,
}
func Setup(ctx *cli.Context) {
if gethmetrics.Enabled {
var (
endpoint = ctx.GlobalString(metricsInfluxDBEndpointFlag.Name)
database = ctx.GlobalString(metricsInfluxDBDatabaseFlag.Name)
username = ctx.GlobalString(metricsInfluxDBUsernameFlag.Name)
password = ctx.GlobalString(metricsInfluxDBPasswordFlag.Name)
hosttag = ctx.GlobalString(metricsInfluxDBHostTagFlag.Name)
)
log.Info("Enabling swarm metrics collection and export")
go influxdb.InfluxDBWithTags(gethmetrics.DefaultRegistry, 10*time.Second, endpoint, database, username, password, "swarm.", map[string]string{
"host": hosttag,
})
}
}
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