Setting a cronjob to reset PHP-FPM

WebHostPro

• September 09, 2020 12:30

Our shared servers seem to gradually build up CPU use until we reset PHP-FPM. It then comes down right away. I was thinking of running a weekly or maybe even a daily cronjob to reset it. Do you think this could have any negative precautions? And what would be the best cron job to do this say daily for example?

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  sparek-3

  • September 09, 2020 17:41

  Probably a better approach would be to figure out what is cause the high CPU usage of php-fpm. Is it one particular account? Is that account being flooded with PHP requests? Perhaps opcache is misconfigured? Hard to really say. But if you're resorting to periodically restarting services, that's generally not a great solution because it means you're just masking the underlying issue.

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  WebHostPro

  • September 09, 2020 17:53

  Thanks, I was thinking that too. It just seems odd that resetting FPM lowers the load so much each time on multiple servers. I can't see anything else obvious that might be related. So I was thinking FPM just gets bloated. I'll check opcache. Do you have any suggestions for configuring opcache?

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  cPanelLauren

  • September 09, 2020 20:49

  Well there is a known issue with php-fpm and opcache and there has been for a long time though it's not necessarily the fault of opcache. That could be the cause of the issue you're seeing though without more information I couldn't tell you for sure. The PHP bug is here: As far as restarting php-fpm, it's not an ideal solution, the best solution would be as @sparek-3 suggests but to restart the service it's /scripts/restartsrv_apache_php_fpm
  

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