Servlet buffering response despite calls to flush()

Question

We have a system where a client makes an HTTP GET request, the system does some processing on the backend, zips the results, and sends it to the client. Since the processing can

Answer 1

The issue is that by default each servlet implementation buffers the data whereas SSE and other custom requirements might/will need data immediately.

The solution is to do the following:

response.setBufferSize(1) // or some similar small number for such servlets. 

This will ensure that the data is written out earlier (with the resultant performance loss)