I have an issue on a particular Magento store, on two different servers.
The issue is that when I save admin panels, I get a 502 error. The values actually save to the database, as pressing back on the browser loads the admin page with the new values set. However, the page will always hit 502 instead of refreshing after the save, and pressing back manually is the only way to continue working.
Log files show the following:
exited on signal 11 (SIGSEGV - core dumped) after 3.555010 seconds from start
[error] 38501#0: *625 recv() failed (104: Connection reset by peer) while reading response header from upstream
pool file variables
[website.dev] listen = /var/run/php5-fpm.website.dev.sock user = www-data group = www-data listen.owner = www-data listen.group = www-data listen.mode = 0660 pm = ondemand pm.max_children = 2 pm.start_servers = 1 pm.min_spare_servers = 1 pm.max_spare_servers = 2 pm.process_idle_timeout = 60s php_admin_value[memory_limit] = 2048M php_admin_value[max_execution_time] = 600
At the moment, the pool settings are amended. I increased the memory limit to 2GB, and the process_idle_timeout to 60s (from 5s) but this hasn't helped.
Some information about the environment:
No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 15.10 Release: 15.10 Codename: wily
PHP 5.6.11-1ubuntu3.1 (cli) Copyright (c) 1997-2015 The PHP Group Zend Engine v2.6.0, Copyright (c) 1998-2015 Zend Technologies with Zend OPcache v7.0.6-dev, Copyright (c) 1999-2015, by Zend Technologies
nginx version: nginx/1.9.3 (Ubuntu)
Any advice would be very welcome,