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I am running a PHP application on nginx with HHVM as main and PHP-FPM as backup

This is my config of nginx regarding the php processing

 location ~ \.(hh|php)$ { fastcgi_intercept_errors on; error_page 500 501 502 503 = @fallback; try_files $uri =404; fastcgi_split_path_info ^(.+\.php)(/.+)$; fastcgi_keep_conn on; include fastcgi_params; fastcgi_index index.php; fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name; fastcgi_param SERVER_NAME $host; fastcgi_pass 127.0.0.1:9000; } location @fallback { try_files $uri =404; fastcgi_split_path_info ^(.+\.php)(/.+)$; include fastcgi_params; fastcgi_index index.php; fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name; fastcgi_param SERVER_NAME $host; fastcgi_pass unix:/var/run/php5-fpm.sock; }

To test the config,I stopped the hhvm service.Normally that would pass the request to PHP-FPM and should return 200 but I am getting 502 error as follows :

12296#0: *17 connect() failed (111: Connection refused) while connecting to upstream, client: 172.31.34.235, server: stylep3.com, request: "GET / HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host:localhost

Am I doing anything wrong here

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  • what is the point to send error from one place to another??? Commented Oct 3, 2015 at 10:37
  • This does not send the error,it processes the request with fallback processor look at this nginx.org/en/docs/http/ngx_http_upstream_module.html Commented Oct 3, 2015 at 12:01

1 Answer 1

Reset to default
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I found that hhvm includes hhvm.conf in the default vhost file of nginx.

That is processing the request and sending the error.

I modified the config to 

upstream php_backend { server 127.0.0.1:9000; server unix:/var/run/php5-fpm.sock backup; } server { # # other conf... # location ~ \.(hh|php)$ { fastcgi_intercept_errors on; try_files $uri =404; fastcgi_split_path_info ^(.+\.php)(/.+)$; fastcgi_keep_conn on; include fastcgi_params; fastcgi_index index.php; fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name; fastcgi_param SERVER_NAME $host; fastcgi_pass php_backend; } }

and removed the line

include hhvm.conf

from vhost file.

That solved the issue!

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3
  • your first config works perfect, BUT your config only good when hhvm and php-fpm on different servers, so what is the point to run them both locally?? and in case of php error every backend will fail anyway.... Commented Oct 3, 2015 at 14:47
  • No,when hhvm processor takes too much load and stops abruptly the php-fpm process takes charge and starts processing the request. I am running both things on the same server as of now. we are facing scaling issues as of now.So,I heard hhvm is fast after initial JIT warmup.So iam setting up with fallback. Commented Oct 3, 2015 at 17:52
  • install varnish then. if all load will be forwarded from hhvm to php-fpm your server will die in agony..., . hhvm is a single process, php-fpm will be forked into hundreds of child processes. think about cache in front. Commented Oct 3, 2015 at 18:51

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