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POUsing node.js in a fleet management application
 

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    <p>I have a gps fleet management application that I think would greatly benefit from using node.js. I just started to look into node.js and still think I have much to learn, but would appreciate your advice and direction. </p> <p>To give you and idea of our current setup:</p> <blockquote> <p>A java app receives, compiles, and parses gps records into mySql db. The users than, though our application, query the database every 6 sec for the last record for a particular gps unit. During the day there are about 9 million records that are inserted into the database. </p> </blockquote> <p>So would I would like to do is to use and include node.js within our java app and utilize it to send gps data to the client browser without it being queried into the database. In other words, i was thinking to do a small function that checks gps id (about 5000 ids in total) and compare to client id (200 in total) and based on that send that to the required node.js channel. </p> <p>Providing that I do not have much experience with node.js, I would greatly appreciate it if you can tell me if my logic is sound and that node.js is the right way to go?</p> <p>Thanks,</p>
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    1. COWhy is your application querying the db every 6 seconds? Is that necessary? I think the technology you are eluding to is a socket connection, which is not specific to node at all, and can be done with many languages including java. node also has nothing to do with java, but is a library for server side javascript. java is in no way related to javascript.
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    2. CO@dqhendricks Thanks for comment. We query it every 6 seconds because we want to provide our clients with current vehicle status as fast as possible, because most of our clients purchase our system because of this feature. So our thinking was that if it would be possible to push the data to the browser as the information became available, instead of just the client browser doing a recurring query every 6 seconds. This solution has worked fine, but as the number of trackers increases our system is becoming incredibly slow.
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    3. COWell then, you are on the right track with socket.io for the client side of your web application, but node may not make sense to be using if the rest of your server side application is written in Java. You could write the socket server on the server side using Java just as well. The real advantage to using node.js is that it is event driven with non-blocking network calls (MySQL). This means it doesn't have to create a new thread each time a connection is made, exhausting your systems memory very quickly, and it doesn't have to stop everything it is doing when waiting for a response from mysql
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