php-fpm lot of childs zombies exiting after huge amount of seconds + 502 errors

Question

I'm facing the following problem on my nginx/php-fpm server : I get random 502 (bad gateway) errors on AJAX calls (autocompletion actually). Everything else is working fine, except autocompletion.

On my php-fpm.log, I got a huge amount of process dying (signal 11) after like 18 hours or so... This doesn't look correct right?

What can make this happen? I already tweaked pm.max_request, max execution time... And I'm having a dynamic php-fpm pool.

111110100 · Answer

A good starting point is to edit php.ini and add/edit this line from:

; error_log = filename

to

error_log = /var/log/php.errors

be sure the log file is owned by the nginx user.

php-fpm lot of childs zombies exiting after huge amount of seconds + 502 errors

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