PHP-FPM - upstream prematurely closed connection while reading response header

PHP-FPM - upstream prematurely closed connection while reading response header

nginx apc php

nginx

nginx php5-fpm upstream timed out (110: Connection timed out) while connecting to upstream

tcp nginx apc php

nginx

NGINX + PHP5-FPM segfaults under high load

nginx segmentation-fault fastcgi apc php

nginx

Log visits in shared memory

php logging nginx memcached apc

nginx

apc under php-fpm not caching files

nginx apc fastcgi php

nginx

Magento + APCu caching issue. Site is slow and there is more cache misses than hits

magento caching nginx apc php

nginx