Pensieve ecosystem and QUIC

[Leo-rojo]

Hi hongzi, my compliments for the outstanding work. My understanding of the overall ecosystem is the following:

• An apache server (or whatever server) host the video chunks, the compiled dash player and the compiled main dash.all.js and is listening on port 80
• A second server (based on BaseHTTPServer) written in python runs the abr logic for mpc and pensieve while for the other abr already embedded in the clients the python server is used just for collecting some information. Anyway without the presence of this server nothing works because the client makes a post call to it which need to receive a response in order to continue to fetch the chunks. this server is listening on port 8333.
• A chrome browser talks (with get calls) with the first apache server to fetch the chunks but at the end of each fetched chunk it send the post call to the second server, receive a response and based on that make an other get call to the apache server.

Could you please confirm me that this is how the overall system works?

Now I'm trying to use the same system but with quic underling transport protocol. With a lot of effort I managed to build up the QUIC server (which substitute the apache one) and interface it with chrome. Of course the second webserver needs to run for continuously fetch the chunks and make everything work. My question is: can I just change the second python server with my abr logic using python language and tcp for making the post call without changing the QUIC server? (communication chrome-quic server using QUIC for fetch chunks and second server as backend for make logic decision that should be present in the browser) Sorry for the length, Best regards,

[hongzimao]

Your understanding for the overall system structure is correct.

Really nice to hear that you get QUIC integrated into this experimentation platform :) I think swapping Apache server with QUIC should work. The client doesn't assume the backend is an Apache server and the ABR server is independent with this process.

Btw, if possible, would be nice if you submit a pull request just to show how you integrate QUIC. I think it's very valuable to future researchers/engineers who want to do similar things. But of course, if it's a private project for you, feel free to keep it clsosed.