Configure php-fpm and nginx to run in low memory server

It was pain in the ass to have php-fpm and nginx together to serve php app, especially when you’re running on low-memory server, especially when you’re running cms like wordpress which basically heavy duty. I had a Centos server running with memory only 1024Mb (1Gb). My web kept crushed every single time. And the problem stil remains, memory leak. I don’t what the root cause was. I still don’t know what that is but I think it’s something to do with php-fpm configuration or even nginx.

Just several days ago I had my blog up and running with wordpress in the same type of server, same OS (Centos) with the same memory (1Gb) and since I didn’t want to use apache, guess I had to get my nginx and php-fpm working together again. I thought my web would be running very smoothly since the blog was still unlikely to receive much traffic. But I was wrong, somehow the memory was leaked again. My server only running with 1024Mb, but I thought It didn’t matter. The only way to get this problem mitigated is to tune up both the php-fpm and nginx configurations which I never liked this. But I need this, so let’s get this done.

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Setup nginx, php, wordpress in ubuntu

So after all these years I’ve had using apache for run something that runs with php, but since I know about nginx, I’ve been using this webserver instead of apache.

This wordpress blog is running with nginx and php-fpm, because not like apache that you can run anything about php without install the additional package. With nginx, you’ll need php-fpm to run php behind nginx.

This is the steps that I always use for make my php run behind nginx, especially when I setup this wordpress blog. Since I’m using mysql for database, you might want to install php package for mysql as well.

apt-get install php5-common php5-fpm php5-mysql

create nginx configuration for php website

vim /etc/nginx/conf.d/myweb.conf

myweb.conf

server {
    listen 80;
    server_name www.pulpn.com pulpn.com;
    charset utf-8;
    gzip_vary on;
    access_log /var/log/nginx/myweb.access.log;
    error_log /var/log/nginx/myweb.error.log;
    add_header 'Access-Control-Allow-Origin' '*' always;
    add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS, PUT, DELETE' always;
    location / {
        root /var/www/pulpn;
        index index.php;
        try_files $uri $uri/ /index.php?q=$uri&$args;
        location ~* \.php {
            try_files $uri =404;
            include fastcgi_params;
            fastcgi_index index.php;
            fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
            fastcgi_pass  unix:/var/run/php5-fpm.sock;
        }
    }
}

Restart your nginx :

service nginx restart

Or

/etc/init.d/nginx restart