am designing a new real-time auction web application, similar to ebay but more specialized. From initial research I feel that a solution based on Node JS/Express JS/Redis or MongoDB would work well.
The auctions will run in real time, and multiple auctions can occur concurrently. Users can also be active in multiple auctions at the same time. Users will submit bids and view the progress of the auction through a web browser, receiving real-time updates throughout the auction. As these are specialized auctions there is a more complex than usual bid methodology that may take a non-negligible amount of processing time when a new bid is submitted. Having thought through the proposed architecture I realized that independent auctions will end up blocking each other due to the single-threaded nature of Node JS and the databases. For example, consider that there are two live auctions; Auction A and Auction B. If a user submits a bid in Auction A, whilst this bid is being processed by the server another user is essentially blocked from submitting a bid in Auction B. This is not ideal as the two auctions are completely independent of each other and do not share any state. As the site hosts more concurrent auctions this delay will increase. Is there any way that I can architect the application so that this is not the case and that multiple auctions can run in a truly concurrent fashion? One idea that I had was to somehow dynamically create a new instance of the application along with its own database on the creation of every new auction. I am unsure how practical this is or if there are other tried and tested techniques for dealing with this kind of problem. A further consideration is to be able to scale the application as demand grows. Any advice would be greatly appreciated. -- -- Job Board: http://jobs.nodejs.org/ Posting guidelines: https://github.com/joyent/node/wiki/Mailing-List-Posting-Guidelines You received this message because you are subscribed to the Google Groups "nodejs" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/nodejs?hl=en?hl=en --- You received this message because you are subscribed to the Google Groups "nodejs" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
