GOLANG 检查 MongoDB 是否正在运行

huangapple
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英文:

GOLANG check whether mongodb is running

问题

我正在编写一个GO脚本来检查Mongo服务器是否正在运行。我的代码如下：

  1. import "bytes"
  2. import "os/exec"
  3. import "fmt"
  5. func main() {
  6.     cmd := exec.Command("ps", "-ef", "|", "grep", "mongod", "|", "grep", "-v", "grep", "|", "wc", "-l", "|", "tr", "-d", "'")
  8.     fmt.Println(cmd)
  9.     var out bytes.Buffer
  10.     var stderr bytes.Buffer
  11.     cmd.Stdout = &out
  12.     cmd.Stderr = &stderr
  13.     err := cmd.Run()
  14.     if err != nil {
  15.         fmt.Println(fmt.Sprint(err) + ": " + stderr.String())
  16.         return
  17.     }
  18.     fmt.Println("Result: " + out.String())
  19. }

但是出现错误，错误信息为"exit status 1: error: garbage option"。是否有其他方法可以使用GOLANG来检查Mongo服务器是否运行？请告诉我。

英文:

I am writing a GO script to check whether Mongo server is running. My code is as,

  1. import "bytes"
  2. import "os/exec"
  3. import "fmt"
  5. func main() {
  6. 	cmd := exec.Command("ps", "-ef", "|", "grep", "mongod", "|", "grep", "-v", "grep", "|", "wc", "-l", "|", "tr", "-d", "'", "'")
  8. 	fmt.Println(cmd)
  9. 	var out bytes.Buffer
  10. 	var stderr bytes.Buffer
  11. 	cmd.Stdout = &out
  12. 	cmd.Stderr = &stderr
  13. 	err := cmd.Run()
  14. 	if err != nil {
  15. 		fmt.Println(fmt.Sprint(err) + ": " + stderr.String())
  16. 		return
  17. 	}
  18. 	fmt.Println("Result: " + out.String())
  19. }

But Getting Error as , "exit status 1: error: garbage option" .
Is there other way to check this with GOLANG? Please let me know.

答案1

得分: 2

如果你想超越将一个bash脚本移植到Go语言（这往往比它值得的麻烦多），你可以使用mgo库来实际连接到一个MongoDB实例并检查其是否健康：

  1. package main
  3. import (
  4.     "gopkg.in/mgo.v2"
  5.     "fmt"
  6.     "os"
  7. )
  9. func main() {
  10.     sess, err := mgo.Dial("localhost")
  11.     if err != nil {
  12.         fmt.Println(err)
  13.         os.Exit(1)
  14.     }
  15.     defer sess.Close()
  16.     err = sess.Ping()
  17.     if err != nil {
  18.         fmt.Println(err)
  19.         os.Exit(1)
  20.     }
  21.     fmt.Println("MongoDB服务器正常运行。")
  22.     os.Exit(0)
  23. }
英文:

If you want to go beyond porting a bash script to Go (which is often more trouble than it's worth), you can use the mgo library to actually connect to a MongoDB instance and check if it is healthy:

  1. package main
  3. import (
  4.     "gopkg.in/mgo.v2"
  5.     "fmt"
  6.     "os"
  7. )
  9. func main() {
  10.     sess, err := mgo.Dial("localhost")
  11.     if err != nil {
  12.         fmt.Println(err)
  13.         os.Exit(1)
  14.     }
  15.     defer sess.Close()
  16.     err = sess.Ping()
  17.     if err != nil {
  18.         fmt.Println(err)
  19.         os.Exit(1)
  20.     }
  21.     fmt.Println("MongoDB server is healthy.")
  22.     os.Exit(0)
  23. }

huangapple
  • 本文由 发表于 2017年5月31日 19:44:32
  • 转载请务必保留本文链接：https://go.coder-hub.com/44283880.html
  • bash
  • go
  • mongodb
  • ubuntu
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