[WatchDog]

FWIW, here is a fairly minimal example[0] of broadcasting over websockets reusing the same buffer.

I'm not very familiar with vert.x(not a netty expert either), but I think the author of that article is ascribing blame to the wrong place.

[0]: https://github.com/juggernaut/netty-websocket-broadcast-exam...

[winrid]

Not using websockets, but thanks! I have to look into it again. Right now the service is working fine so I haven't been motivated to work on it again. (in-memory CDN based on vertx-web + Caffeine + custom on-disk LRU cache)