william_rao Posted November 18, 2003 Share Posted November 18, 2003 We plan to install multiple Apache servers instead of single Apache server since it is overloaded. My concern is: in one user session, the user may send 2 or more requests. How do multiple Apache servers to communicate each other for the same session? For example, we have Apache Server A and Apache Server B. A and B process user shopping cart requests in turn, but connect to the same database. User William wants to buy a PC and a notebook (just like in Dell.com). He login to the PHP shopping cart. First he puts a PC into his shopping cart, this request is processed by Apache Server A. Then, in same session, he puts a notebook into his shopping cart, this request is processed by Apache Server B. How can Apache Server B knows user William has a PC in shopping cart so B can calculate the total price for a PC plus a notebook? Thanks a lot. Link to comment https://forums.phpfreaks.com/topic/1385-how-to-keep-session-data-in-multiple-apache-servers/ Share on other sites More sharing options...
sirmanson Posted November 19, 2003 Share Posted November 19, 2003 The easiest way to make this work is just to use a common database between the two servers. Have all of your user session data stored here. Then either server can access the data at any time. Link to comment https://forums.phpfreaks.com/topic/1385-how-to-keep-session-data-in-multiple-apache-servers/#findComment-4624 Share on other sites More sharing options...
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