Metrics and http server #15

Merged
n0cte merged 10 commits from metrics into master 2020-10-21 16:42:05 +00:00
7 changed files with 238 additions and 0 deletions
Showing only changes of commit a0d70b544b - Show all commits

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@ -24,6 +24,7 @@ import (
log "github.com/sirupsen/logrus"
"github.com/spf13/cobra"
"github.com/spf13/viper"
"github.com/vulcanize/ipld-eth-server/pkg/prom"
)
var (
@ -62,6 +63,19 @@ func initFuncs(cmd *cobra.Command, args []string) {
if err := logLevel(); err != nil {
log.Fatal("Could not set log level: ", err)
}
if viper.GetBool("metrics") {
prom.Init()
}
if viper.GetBool("http") {
addr := fmt.Sprintf(
"%s:%s",
viper.GetString("http.addr"),
viper.GetString("http.port"),
)
prom.Serve(addr)
}
}
func logLevel() error {
@ -93,6 +107,12 @@ func init() {
rootCmd.PersistentFlags().String("client-ipcPath", "", "location of geth.ipc file")
rootCmd.PersistentFlags().String("log-level", log.InfoLevel.String(), "Log level (trace, debug, info, warn, error, fatal, panic")
rootCmd.PersistentFlags().Bool("metrics", false, "enable metrics")
rootCmd.PersistentFlags().Bool("http", false, "enable http service for prometheus")
rootCmd.PersistentFlags().String("http-addr", "127.0.0.1", "http host for prometheus")
rootCmd.PersistentFlags().String("http-port", "8080", "http port for prometheus")
viper.BindPFlag("logfile", rootCmd.PersistentFlags().Lookup("logfile"))
viper.BindPFlag("database.name", rootCmd.PersistentFlags().Lookup("database-name"))
viper.BindPFlag("database.port", rootCmd.PersistentFlags().Lookup("database-port"))
@ -100,6 +120,12 @@ func init() {
viper.BindPFlag("database.user", rootCmd.PersistentFlags().Lookup("database-user"))
viper.BindPFlag("database.password", rootCmd.PersistentFlags().Lookup("database-password"))
viper.BindPFlag("log.level", rootCmd.PersistentFlags().Lookup("log-level"))
viper.BindPFlag("metrics", rootCmd.PersistentFlags().Lookup("metrics"))
viper.BindPFlag("http", rootCmd.PersistentFlags().Lookup("http"))
viper.BindPFlag("http.addr", rootCmd.PersistentFlags().Lookup("http-addr"))
viper.BindPFlag("http.port", rootCmd.PersistentFlags().Lookup("http-port"))
}
func initConfig() {

1
go.mod
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@ -13,6 +13,7 @@ require (
github.com/multiformats/go-multihash v0.0.13
github.com/onsi/ginkgo v1.12.1
github.com/onsi/gomega v1.10.1
github.com/prometheus/client_golang v1.5.1
github.com/sirupsen/logrus v1.6.0
github.com/spf13/cobra v1.0.0
github.com/spf13/viper v1.7.0

8
go.sum
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@ -66,6 +66,7 @@ github.com/armon/go-radix v0.0.0-20180808171621-7fddfc383310/go.mod h1:ufUuZ+zHj
github.com/aws/aws-sdk-go v1.25.48/go.mod h1:KmX6BPdI08NWTb3/sm4ZGu5ShLoqVDhKgpiN924inxo=
github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8=
github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
github.com/bgentry/speakeasy v0.1.0/go.mod h1:+zsyZBPWlz7T6j88CTgSN5bM796AkVf0kBD4zp0CCIs=
github.com/bketelsen/crypt v0.0.3-0.20200106085610-5cbc8cc4026c/go.mod h1:MKsuJmJgSg28kpZDP6UIiPt0e0Oz0kqKNGyRaWEPv84=
@ -703,6 +704,7 @@ github.com/mattn/go-runewidth v0.0.8 h1:3tS41NlGYSmhhe/8fhGRzc+z3AYCw1Fe1WAyLuuj
github.com/mattn/go-runewidth v0.0.8/go.mod h1:H031xJmbD/WCDINGzjvQ9THkh0rPKHF+m2gUSrubnMI=
github.com/mattn/go-sqlite3 v1.9.0 h1:pDRiWfl+++eC2FEFRy6jXmQlvp4Yh3z1MJKg4UeYM/4=
github.com/mattn/go-sqlite3 v1.9.0/go.mod h1:FPy6KqzDD04eiIsT53CuJW3U88zkxoIYsOqkbpncsNc=
github.com/matttproud/golang_protobuf_extensions v1.0.1 h1:4hp9jkHxhMHkqkrB3Ix0jegS5sx/RkqARlsWZ6pIwiU=
github.com/matttproud/golang_protobuf_extensions v1.0.1/go.mod h1:D8He9yQNgCq6Z5Ld7szi9bcBfOoFv/3dc6xSMkL2PC0=
github.com/mgutz/ansi v0.0.0-20170206155736-9520e82c474b/go.mod h1:01TrycV0kFyexm33Z7vhZRXopbI8J3TDReVlkTgMUxE=
github.com/microcosm-cc/bluemonday v1.0.1/go.mod h1:hsXNsILzKxV+sX77C5b8FSuKF00vh2OMYv+xgHpAMF4=
@ -827,21 +829,25 @@ github.com/prometheus/client_golang v0.9.1/go.mod h1:7SWBe2y4D6OKWSNQJUaRYU/AaXP
github.com/prometheus/client_golang v0.9.2/go.mod h1:OsXs2jCmiKlQ1lTBmv21f2mNfw4xf/QclQDMrYNZzcM=
github.com/prometheus/client_golang v0.9.3/go.mod h1:/TN21ttK/J9q6uSwhBd54HahCDft0ttaMvbicHlPoso=
github.com/prometheus/client_golang v1.0.0/go.mod h1:db9x61etRT2tGnBNRi70OPL5FsnadC4Ky3P0J6CfImo=
github.com/prometheus/client_golang v1.5.1 h1:bdHYieyGlH+6OLEk2YQha8THib30KP0/yD0YH9m6xcA=
github.com/prometheus/client_golang v1.5.1/go.mod h1:e9GMxYsXl05ICDXkRhurwBS4Q3OK1iX/F2sw+iXX5zU=
github.com/prometheus/client_model v0.0.0-20180712105110-5c3871d89910/go.mod h1:MbSGuTsp3dbXC40dX6PRTWyKYBIrTGTE9sqQNg2J8bo=
github.com/prometheus/client_model v0.0.0-20190129233127-fd36f4220a90/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
github.com/prometheus/client_model v0.2.0 h1:uq5h0d+GuxiXLJLNABMgp2qUWDPiLvgCzz2dUR+/W/M=
github.com/prometheus/client_model v0.2.0/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
github.com/prometheus/common v0.0.0-20180801064454-c7de2306084e/go.mod h1:daVV7qP5qjZbuso7PdcryaAu0sAZbrN9i7WWcTMWvro=
github.com/prometheus/common v0.0.0-20181113130724-41aa239b4cce/go.mod h1:daVV7qP5qjZbuso7PdcryaAu0sAZbrN9i7WWcTMWvro=
github.com/prometheus/common v0.0.0-20181126121408-4724e9255275/go.mod h1:daVV7qP5qjZbuso7PdcryaAu0sAZbrN9i7WWcTMWvro=
github.com/prometheus/common v0.4.0/go.mod h1:TNfzLD0ON7rHzMJeJkieUDPYmFC7Snx/y86RQel1bk4=
github.com/prometheus/common v0.4.1/go.mod h1:TNfzLD0ON7rHzMJeJkieUDPYmFC7Snx/y86RQel1bk4=
github.com/prometheus/common v0.9.1 h1:KOMtN28tlbam3/7ZKEYKHhKoJZYYj3gMH4uc62x7X7U=
github.com/prometheus/common v0.9.1/go.mod h1:yhUN8i9wzaXS3w1O07YhxHEBxD+W35wd8bs7vj7HSQ4=
github.com/prometheus/procfs v0.0.0-20180725123919-05ee40e3a273/go.mod h1:c3At6R/oaqEKCNdg8wHV1ftS6bRYblBhIjjI8uT2IGk=
github.com/prometheus/procfs v0.0.0-20181005140218-185b4288413d/go.mod h1:c3At6R/oaqEKCNdg8wHV1ftS6bRYblBhIjjI8uT2IGk=
github.com/prometheus/procfs v0.0.0-20181204211112-1dc9a6cbc91a/go.mod h1:c3At6R/oaqEKCNdg8wHV1ftS6bRYblBhIjjI8uT2IGk=
github.com/prometheus/procfs v0.0.0-20190507164030-5867b95ac084/go.mod h1:TjEm7ze935MbeOT/UhFTIMYKhuLP4wbCsTZCD3I8kEA=
github.com/prometheus/procfs v0.0.2/go.mod h1:TjEm7ze935MbeOT/UhFTIMYKhuLP4wbCsTZCD3I8kEA=
github.com/prometheus/procfs v0.0.8 h1:+fpWZdT24pJBiqJdAwYBjPSk+5YmQzYNPYzQsdzLkt8=
github.com/prometheus/procfs v0.0.8/go.mod h1:7Qr8sr6344vo1JqZ6HhLceV9o3AJ1Ff+GxbHq6oeK9A=
github.com/prometheus/tsdb v0.6.2-0.20190402121629-4f204dcbc150/go.mod h1:qhTCs0VvXwvX/y3TZrWD7rabWM+ijKTux40TwIPHuXU=
github.com/prometheus/tsdb v0.7.1 h1:YZcsG11NqnK4czYLrWd9mpEuAJIHVQLwdrleYfszMAA=
@ -953,6 +959,8 @@ github.com/vulcanize/go-ethereum v1.9.11-statediff-0.0.5 h1:U+BqhjRLR22e9OEm8cgW
github.com/vulcanize/go-ethereum v1.9.11-statediff-0.0.5/go.mod h1:7oC0Ni6dosMv5pxMigm6s0hN8g4haJMBnqmmo0D9YfQ=
github.com/vulcanize/ipld-eth-indexer v0.2.0-alpha h1:+XVaC7TsA0K278YWpfqdrNxwgC6hY6fBaN8w2/e1Lts=
github.com/vulcanize/ipld-eth-indexer v0.2.0-alpha/go.mod h1:SuMBscFfcBHYlQuzDDd4by+R0S3gaAFjrOU+uQfAefE=
github.com/vulcanize/ipld-eth-indexer v0.4.0-alpha h1:DXZ/hF65uegvh70YZTcPM6InMUxGkWxee6awyLcrhDg=
github.com/vulcanize/ipld-eth-indexer v0.4.0-alpha/go.mod h1:SuMBscFfcBHYlQuzDDd4by+R0S3gaAFjrOU+uQfAefE=
github.com/vulcanize/pg-ipfs-ethdb v0.0.1-alpha h1:Y7j0Hw1jgVVOg+eUGUr7OgH+gOBID0DwbsfZV1KoL7I=
github.com/vulcanize/pg-ipfs-ethdb v0.0.1-alpha/go.mod h1:OuqE4r2LGWAtDVx3s1yaAzDcwy+LEAqrWaE1L8UfrGY=
github.com/wangjia184/sortedset v0.0.0-20160527075905-f5d03557ba30/go.mod h1:YkocrP2K2tcw938x9gCOmT5G5eCD6jsTz0SZuyAqwIE=

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@ -0,0 +1,143 @@
package prom
import (
"database/sql"
"github.com/prometheus/client_golang/prometheus"
)
const subsystem = "connections"
// DBStatsGetter is an interface that gets sql.DBStats.
type DBStatsGetter interface {
Stats() sql.DBStats
}
// DBStatsCollector implements the prometheus.Collector interface.
type DBStatsCollector struct {
sg DBStatsGetter
// descriptions of exported metrics
maxOpenDesc *prometheus.Desc
openDesc *prometheus.Desc
inUseDesc *prometheus.Desc
idleDesc *prometheus.Desc
waitedForDesc *prometheus.Desc
blockedSecondsDesc *prometheus.Desc
closedMaxIdleDesc *prometheus.Desc
closedMaxLifetimeDesc *prometheus.Desc
}
// NewDBStatsCollector creates a new DBStatsCollector.
func NewDBStatsCollector(dbName string, sg DBStatsGetter) *DBStatsCollector {
labels := prometheus.Labels{"db_name": dbName}
return &DBStatsCollector{
sg: sg,
maxOpenDesc: prometheus.NewDesc(
prometheus.BuildFQName(namespace, subsystem, "max_open"),
"Maximum number of open connections to the database.",
nil,
labels,
),
openDesc: prometheus.NewDesc(
prometheus.BuildFQName(namespace, subsystem, "open"),
"The number of established connections both in use and idle.",
nil,
labels,
),
inUseDesc: prometheus.NewDesc(
prometheus.BuildFQName(namespace, subsystem, "in_use"),
"The number of connections currently in use.",
nil,
labels,
),
idleDesc: prometheus.NewDesc(
prometheus.BuildFQName(namespace, subsystem, "idle"),
"The number of idle connections.",
nil,
labels,
),
waitedForDesc: prometheus.NewDesc(
prometheus.BuildFQName(namespace, subsystem, "waited_for"),
"The total number of connections waited for.",
nil,
labels,
),
blockedSecondsDesc: prometheus.NewDesc(
prometheus.BuildFQName(namespace, subsystem, "blocked_seconds"),
"The total time blocked waiting for a new connection.",
nil,
labels,
),
closedMaxIdleDesc: prometheus.NewDesc(
prometheus.BuildFQName(namespace, subsystem, "closed_max_idle"),
"The total number of connections closed due to SetMaxIdleConns.",
nil,
labels,
),
closedMaxLifetimeDesc: prometheus.NewDesc(
prometheus.BuildFQName(namespace, subsystem, "closed_max_lifetime"),
"The total number of connections closed due to SetConnMaxLifetime.",
nil,
labels,
),
}
}
// Describe implements the prometheus.Collector interface.
func (c DBStatsCollector) Describe(ch chan<- *prometheus.Desc) {
ch <- c.maxOpenDesc
ch <- c.openDesc
ch <- c.inUseDesc
ch <- c.idleDesc
ch <- c.waitedForDesc
ch <- c.blockedSecondsDesc
ch <- c.closedMaxIdleDesc
ch <- c.closedMaxLifetimeDesc
}
// Collect implements the prometheus.Collector interface.
func (c DBStatsCollector) Collect(ch chan<- prometheus.Metric) {
stats := c.sg.Stats()
ch <- prometheus.MustNewConstMetric(
c.maxOpenDesc,
prometheus.GaugeValue,
float64(stats.MaxOpenConnections),
)
ch <- prometheus.MustNewConstMetric(
c.openDesc,
prometheus.GaugeValue,
float64(stats.OpenConnections),
)
ch <- prometheus.MustNewConstMetric(
c.inUseDesc,
prometheus.GaugeValue,
float64(stats.InUse),
)
ch <- prometheus.MustNewConstMetric(
c.idleDesc,
prometheus.GaugeValue,
float64(stats.Idle),
)
ch <- prometheus.MustNewConstMetric(
c.waitedForDesc,
prometheus.CounterValue,
float64(stats.WaitCount),
)
ch <- prometheus.MustNewConstMetric(
c.blockedSecondsDesc,
prometheus.CounterValue,
stats.WaitDuration.Seconds(),
)
ch <- prometheus.MustNewConstMetric(
c.closedMaxIdleDesc,
prometheus.CounterValue,
float64(stats.MaxIdleClosed),
)
ch <- prometheus.MustNewConstMetric(
c.closedMaxLifetimeDesc,
prometheus.CounterValue,
float64(stats.MaxLifetimeClosed),
)
}

27
pkg/prom/prom.go Normal file
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@ -0,0 +1,27 @@
package prom
import (
"github.com/jmoiron/sqlx"
"github.com/prometheus/client_golang/prometheus"
)
const (
namespace = "ipld_eth_server"
statsSubsystem = "stats"
)
var (
metrics bool
)
// Init module initialization
func Init() {
metrics = true
}
// RegisterDBCollector create metric colletor for given connection
func RegisterDBCollector(name string, db *sqlx.DB) {
if metrics {
prometheus.Register(NewDBStatsCollector(name, db))
}
}

31
pkg/prom/serve.go Normal file
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@ -0,0 +1,31 @@
package prom
import (
"errors"
"net/http"
"github.com/prometheus/client_golang/prometheus/promhttp"
"github.com/sirupsen/logrus"
)
var errPromHTTP = errors.New("can't start http server for prometheus")
// Serve start listening http
func Serve(addr string) *http.Server {
mux := http.NewServeMux()
mux.Handle("/metrics", promhttp.Handler())
srv := http.Server{
Addr: addr,
Handler: mux,
}
go func() {
if err := srv.ListenAndServe(); err != nil {
logrus.
WithError(err).
WithField("module", "prom").
WithField("addr", addr).
Fatal(errPromHTTP)
}
}()
return &srv
}

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@ -21,6 +21,7 @@ import (
"path/filepath"
"github.com/vulcanize/ipld-eth-indexer/pkg/node"
"github.com/vulcanize/ipld-eth-server/pkg/prom"
"github.com/spf13/viper"
@ -81,6 +82,7 @@ func NewConfig() (*Config, error) {
c.HTTPEndpoint = httpPath
overrideDBConnConfig(&c.DBConfig)
serveDB := utils.LoadPostgres(c.DBConfig, node.Info{})
prom.RegisterDBCollector(c.DBConfig.Name, serveDB.DB)
c.DB = &serveDB
return c, nil