還是基於iamseth/oracledb_exporter 的擴充套件，很簡單，就是替換依賴，以前有一個基於godror/godror
調整的版本，go-ora 是一個純golang開發的oracle 驅動，以下是一個調整試用

需要修改的程式碼

• go.mod

module github.com/iamseth/oracledb_exporter

​

go 1.14

​

require (

  github.com/BurntSushi/toml v0.3.1

  github.com/prometheus/client_golang v1.0.0

  github.com/prometheus/common v0.6.0
 

  github.com/sijms/go-ora v0.0.0-20201205173311-40e04fc02df4

  gopkg.in/alecthomas/kingpin.v2 v2.2.6

)

• main.go

package main

​

import (

  "bytes"

  "context"

  "crypto/sha256"

  "database/sql"

  "errors"

  "hash"

  "io"

  "net/http"

  "os"

  "strconv"

  "strings"

  "sync"
 

  "time"

​

  "github.com/BurntSushi/toml"

​

  _ "github.com/sijms/go-ora"

​

  "fmt"

​

  "github.com/prometheus/client_golang/prometheus"

  "github.com/prometheus/client_golang/prometheus/promhttp"

  "github.com/prometheus/common/log"

  "gopkg.in/alecthomas/kingpin.v2"

​

  //Required for debugging
 

  _ "net/http/pprof"

)

說明

目前不太好的是go-ora 效能不是很好，但是從跨平臺的角度來說go-ora一個很不錯的選擇，具體可以參考程式碼https://github.com/rongfengliang/oracledb_exporter/tree/v1.0.1，如果需要分析效能可以集合pprof，我通過
測試發現效能還是差異很大的,參考火焰圖

參考資料

https://github.com/sijms/go-ora
https://github.com/iamseth/oracledb_exporter
https://github.com/rongfengliang/oracledb_exporter
https://www.cnblogs.com/rongfengliang/p/14109740.html
https://github.com/godror/godror
https://github.com/rongfengliang/go-ora-godror