How to manage session on a load balancing architecture?

I Was facing a problem in my load balancing architecture. Please suggest something on How to manage session开发者_StackOverflow on a load balancing architecture?

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in PHP you have something called as session_set_save_handler.

IN this method you can define your customized function for session handling e.g. you can handle sessions with database.

Also load balancers provide concept of sticky-sessions in which sessiosn are save on load balancers itself