PHP cgi locks up and times out.

Posted by Oli on Server Fault See other posts from Server Fault or by Oli
Published on 2010-05-05T12:24:43Z Indexed on 2010/05/05 12:28 UTC
Read the original article Hit count: 542

Filed under:

php

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gateway-timeout

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nginx

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php-cgi

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php-fpm

I've got a dozen wordpress sites hosted on a nginx/php-cgi setup. After a variable amount of time (usually not that long, and occasionally very fast) PHP locks up and after 2 minutes (the timeout I set in nginx), it get a 504 timeout.

I've tried everything I can think of. I've been using an init script to launch php-cgi but I compiled out php-fpm and tried that for a day with various configurations with the same results.

I've tried a low number of PHP_FCGI_CHILDREN. I've tried as high as my RAM will let me. I've tried various settings for PHP_FCGI_MAX_REQUESTS. xcache seemed to exacerbate the issue, so I removed it.

The server is a VPS but it has over a gig of ram dedicated to it.

All suggestions are welcome at this juncture because I'm desperate.

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