How does Restful WS works with multiple clients at the same time?

Question

I am new to the RESTful Webservices world and I have a question regarding how WS works.

Context:

I am developing a RESTful WS that will have a high load; at one given time I can have let's say up to 10 clients sending multiple requests. All the requests will be sent to port 80.

I am developing the WS with Jersey (Java) and deploying on a Tomcat Webserver.

Question:

Let's say we have 5 clients that send requests at the same time; each one sends 2 requests to port 80; will they be treated in FIFO order? Can we have some sort of multi-threading if let's say we don't care about the order?

Answer 1

It all depends what server you use and how it is configured. Standard configuration (you have to work hard to make it not standard) is to have multiple threads. In other words - server usually automatically creates or uses another thread for each new request and it is almost certain that it will be processed in parallel.

You can actually see it inside your running code by using java.lang.Thread.currentThread() - print the name of current thread and Rest request and you will see.