PHP script automatically monitors Nginx 504 errors

2. #!/usr/bin/php

4. <?php

6. Error_reporting (E_error);

8. Define ("email", "[email protected]");//Your email address

10. Define ("Timeout", 5);//Read site time-out, 5 seconds

12. function Curl_get ($url) {

14. $curl = Curl_init ();

16. curl_setopt ($curl, Curlopt_url, $url);

18. curl_setopt ($curl, Curlopt_returntransfer, 1);

20. curl_setopt ($curl, Curlopt_timeout, TIMEOUT);

22. Headers

24. $headers = Array ();

26. $headers [] = "Date:". Date (' R ');

28. curl_setopt ($curl, Curlopt_httpheader, $headers);

30. $Data = curl_exec ($curl);

32. return $Data;

36. }

40. function Check ($d, $k) {

42. $url = $d;//"http://". $d;

44. $html = Curl_get ($url);

46. if (Substr_count ($html, $k) &lt; 1) {

48. Mail (EMAIL, "JP 504 timeout for". $d, $html);

50. EXEC ("/etc/init.d/nginx restart"); Re-start Nginx

52. EXEC ("/etc/init.d/php-fpm restart");//Restart PHP-FPM

54. }

56. }

60. Check ("https://www.linuxidc.com", "linuxidc.com");

62. ?>

Name the file 504check.php
Modify Permissions chmod +x 504check.php

Then crontab-e add a row

* * * * * */xx/504check.php >/dev/null 2>&1

Every minute the system automatically detects if the website responds slowly, and if so, restarts.

This article from "Li Shilong" blog, declined reprint!

PHP script automatically monitors Nginx 504 errors