Cannot Enable JIT for PHP 8.1

chcw

• July 19, 2023 08:53

Hi, I try to follow the instructions in PHP 8.0: JIT opcache.enable_cli=1 After that, I restart PHP FPM service. Then I check jit buffer size is 256MB. And then I check , I will get " 503 Service Unavailable error". Then If I go back to

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  vanessa

  • July 19, 2023 15:24

  have you checked the Apache log for errors?

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  chcw

  • July 19, 2023 16:44

  Yes, in Apache Error Log, I see the following: [Wed Jul 19 09:40:46.504648 2023] [proxy_fcgi:error] [pid 5914:tid 47200906626816] [remote 79.107.70.235:1854] AH01067: Failed to read FastCGI header [Wed Jul 19 09:40:46.504677 2023] [proxy_fcgi:error] [pid 5914:tid 47200906626816] (104)Connection reset by peer: [remote 79.107.70.235:1854] AH01075: Error dispatching request to :

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  vanessa

  • July 19, 2023 18:09

  Everything I know about that specific error indicates a buggy PHP extension.

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  chcw

  • July 20, 2023 05:32

  Thank you. How to know which extension cause the issue?

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  cPRex Jurassic Moderator

  • July 20, 2023 18:31

  I don't have a good explanation why the page would work once and then not work after it has been accessed again. This would be worth submitting a ticket to our support team so we can check it out directly on your system.

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