Re:HTTP/3 is everywhere but nowhere
by cogman10 on Monday March 17, 2025 @03:54PM
(#43392139)
Totally agree. Most of the benefit of HTTP 2/3 comes from minimizing TCP connections between app->lb. Once you are past the lb the benefits are dubious at best.
Most application frameworks that I've dealt with have limited capabilities to handle concurrent requests, so it becomes a minor issue to have 100+ connections between the app and the lb.
On the flipside, apps talking to the LB can create all sorts of headaches if they have even modest sized pools. 20 TCP connections from 100 different apps and you are already looking at hard to handle TCP flooding.
Most application frameworks that I've dealt with have limited capabilities to handle concurrent requests, so it becomes a minor issue to have 100+ connections between the app and the lb.
On the flipside, apps talking to the LB can create all sorts of headaches if they have even modest sized pools. 20 TCP connections from 100 different apps and you are already looking at hard to handle TCP flooding.