用于处理多个服务器的PHP会话

Question

All,

I have a PHP5 web application written with Zend Framework and MVC. This application is installed on 2 servers with the same setup. Server X has php5/MySql/Apache and Server Y also have the same. We don't have a common DB server between both the servers.

My application works when accessed individually via https on Server X and Server Y. But when we turn on load balancing and have both servers up, the sessions get lost.

How can I make sure my sessions persist across servers? Should I maintain my db on a third server and write sessions to it? IF so, what's the easiest and most secure way to do it?

Thanks

Answer 1

memcached is a popular way to solve this problem. You just need to get it up and running (easy) and update your php.ini file to tell it to use memcached as the session storage.

In php.ini you would modify:

session.save_handler = memcache
session.save_path = ""

For the general idea: PHP Sessions in Memcached.

There are any number of tutorials on setting up the Zend session handler to work with memcached. Take your pick.