在Node和PHP之间与Redis进行会话共享

Question

I have a web app running in PHP over CakePHP framework in IIS on a Windows 2008 server machine.

Now, this application is polling every 6 seconds per connected user to refresh part of the screen and this is causing tends of requests to the IIS server and slowing the whole system down when the Oracle database is busy.

In an attempt to solve this issue I'm thinking of using Node.js to solve this problem and using push notifications. This way every 6 seconds Node would push notifications to all active browser clients.

The problem I'm facing is that the call I'm making is making use of the logged user session. (to call the DB, and once I get the data, to update the session).

I've read Redis can be a solution for this and I've seen posts explaining how to share the session . But there's something I don't get yet:

How could I have the session of the logged user? Should I iterate over all active sessions?

I want to create a setInterval in node to query the DB for each logged user.

Answer 1

I can understand you issue i implemented a similar kind of structure for web chat . With redis or memcache you can create you own data structure to hold users session it will be loaded into ram ,really fast and it will work like global session will be accessible to all users session and for any node or ajax request from browser you will access redis and return response back to user rather than sending request to Oracle database and than back to user .