Re:Real-world HTTP/2: 400GB of images per day
by king_phil on Friday July 15, 2016 @05:13AM
(#12099708)
I worry about TCP window scaling (and full TCP windows) when only using one TCP connection. There is a good reason download managers use multiple connections to download one file, because depending on the latency the maximum transfer rate is capped because only so many TCP packets can be in flight simultaneously. I wonder if nobody ever thought about that... HTTP1/x solved that (more by chance) with multiple connections...
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Re:Real-world HTTP/2: 400GB of images per day
by bsdetector on Friday July 15, 2016 @12:08PM
(#12101967)
Has anybody ever used this for denial of service? Make a large request so the TCP window scales up then just stop sending ACKs. All that data has to remain in the server's memory for retransmit. Even with a really short timeout before connections are dropped you could probably tie up a lot of server memory.