akka/akka-http

Http2: Optimize HPACK header encoding for high entropy headers

Open

#2892 aperta il 16 gen 2020

Vedi su GitHub
 (1 commento) (0 reazioni) (0 assegnatari)Scala (598 fork)batch import
1 - triagedhackathonhelp wantedt:coret:http2t:performance

Metriche repository

Star
 (1311 star)
Metriche merge PR
 (Merge medio 1h 17m) (1 PR mergiata in 30 g)

Descrizione

As @surendarchandra noticed, our HPACK header tries to encode as many header values as possible into dynamic table entries. The effect can be that high entropy headers like Date or Content-Length evict more useful headers from the dynamic table.

The HPACK implementation from twitter that we use, allows to pass the sensitive flag to encodeHeader which prevents that the values are put into the dynamic table. We should consider to encode high entropy header using the sensitive flag for better use of the dynamic header table.

Guida contributor