HTTP/2? ? ?? ??? ??
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HTTP/2 ????? ?? ???, ?? HTTP1.1 ???? ????? ? ?? ??? ??? HTTP/2? ????? ??? ????? ???? ?? ?? ???.
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HTTP/2? ? ?? ??? ??
- 1. HTTP/2? ? ?? ??? ?? ??? sangjinn@gmail.com https://brunch.co.kr/@sangjinkang
- 3. ???? ???? ?? ??? ?) ????????? ????? ??? ?? ??? ?) Akamai
- 4. ?Korea
- 5. ??¨C Service
- 6. ?Line
- 7. ?Manager
- 9. ????, ? ?????, ??? ? ??, ?? ?? ? IT
- 11. ?Maestro KOBA,
- 12. ?KGC,
- 13. ?Icon,
- 14. ?MSDN,
- 16. ?Unite
- 17. ?Seoul,
- 18. ???? ?? ? ?? ??? https://brunch.co.kr/@sangjinkang
- 19. ? ???? ??? ?(script ?combination) ? ? ???? ???? ?(script ?minification) ? ? ???? ??? ??? ?(gzip ?encoding) ? ? ??? ???? ???? ? ? ? ??? ??? ??? ?(compression) ? ? ???? ??? ??? ?(cache-?©\control ???) ? ? DNS ??? ???? ? ? ? CSS/JS? ??? ??? ? ? ??? ??? ????? ?(page ?prefetching) ? ? DNS ? ??? ??? ????? ?(DNS ?prefetching) ? Front
- 20. ?End
- 21. ?????
- 22. ???
- 23. ?????
- 24. ???
- 25. ?
- 26. ?(in
- 27. ?HTTP1.1
- 28. ?
- 29. ?World) HTTP/2 ???????? ???? ??? ???!
- 30. ¡°9%? ????? ???? HTTP/2? ?? ?.. ?? SPDY ????? ? ?? HTTP/2? ???? ??¡?¡± ?? ??? ??¡?. HTTP/1.x? ???? 27%? ????.. SPDY/3.1
- 31. ???? ???? 28%? ????.. HTTP/2? ???? 45%? ????¡? TLS
- 32. ?+
- 33. ?NPN/ALPN ????? ?? ?.. HTTP/2? ??
- 35. ?? HTTP/2? ?? ??? ?? ...
- 36. HTTP/2? ??? RFC 7540 ???? ????¡?
- 37. *
- 38. ?1996? ??? HTTP1.1? 19? ?? ?? ?? - HTTP1.1? ?? ?? ? ?? ?? (??? ??..) *
- 40. ?Of
- 42. ?BODY?? ??? HEADER? ?? (Huffman
- 43. ?Coding) - ???? ????? ???? ?? (Indexing
- 44. ?Table ??) *
- 45. ???? ?? - ?? Connection???? ??? ??, ?? ?? - ??? ???? ?? ??? ??? ?? ?? ?? ?? - ??? ?? ?? ?? ??? WINDOW_SIZE ?? - ??? ???? ?? ????? ?????? ?? ?? Frame??? Encoding?Binary
- 46. ?format? ????. HTTP/2 ??? ??
- 47. ? ???? ??? ???
- 48. *
- 49. ?HTTP1.X
- 50. ?????? HTTP
- 51. ???? ?? ???? HTTP/2 ?¨C ?????(Multiplexing) ??? Client Server Time TCP
- 52. ?Handshake
- 53. ??? ??, ??? ??? ?? ???? HTTP
- 54. ??? ? ?? ??: ?? ?? ??? ??? ?? ??: ??? ??? ??/??? ??(?? 6?), ?? ??? ?????? ?? ??? ??? (Head
- 55. ?Of
- 56. ?Line
- 57. ?Blocking
- 58. ???)
- 59. *
- 60. ??????? ??? HTTP/2? ??? ?? HTTP/2 ?¨C ?????(Multiplexing) ??? Client Server Time ??: FIFO(Fist
- 61. ?In
- 62. ?First
- 63. ?Out)
- 64. ???? ??, ??????? ?? ??? ?? ?????, ???? ??? ??? ?? ??? ?? ???? ?? ?? ? ?? ?? - ?? ??? ?? ??? ??: ??? Binary ??? ??, ???? ?? ???
- 65. ?? ??? ???? ??? ??? ??? HTTP/2? Stream? ???? ??¡?
- 66. ???? ??.. ?????, ???? ?????? ??? ?? ?????
- 67. HTTP/2 ?¨C ???(Stream) ???? ??? ??: ????(seamless),
- 68. ? ??? ???? ?? ??? ?
- 70. ?1 DATA Stream
- 72. ?3 DATA Stream
- 74. ?5 DATA ? ???? ?????-??? ????? ??? ??(DATA)?? ?? ? ??? TCP
- 75. ?????? ??? ???? ??? ??? ? ???? ???? ??? ??? ?? ?? ?? ??? ??? ? ???? ?? ??? ???? ?????? ??? ? ? ????? Stream
- 76. ?1,2,5?? ??? ??? - ????? ? ? ????? Unique
- 77. ?ID? ?? ?? ???(Priority)? ?? ?
- 78. ?? ? ???? HTTP/2 ??? ?? ?¡?
- 79. HTTP/2 ?¨C ???(frame) ? ???? ???? ?? ??(unit) ? ???? Text ??? ?? Binary
- 80. ???? ???? ?? ? ??? ???? ?? ?? ???? ????? ??? Application
- 82. ?(TLS,
- 84. ?(TCP) Network
- 85. ?(IP) POST
- 86. ?/upload
- 87. ?HTTP/1.1 Host:
- 92. ?frame DATA
- 93. ?frame Binary
- 95. ?1.1
- 96. HTTP/2 ?¨C ??? ?? ?? ? ?? :method GET :scheme https :host akamai.com :path /index accept Image/jpeg User-agent Mozilla/5.0.. :method GET :scheme https :host akamai.com :path /new accept Image/jpeg User-agent Mozilla/5.0.. ????? ? ?? ?? ????? ?? ? ?? HEADERS
- 97. ?Frame
- 98. ?(Stream
- 99. ?1) HEADERS
- 100. ?Frame
- 101. ?(Stream
- 102. ?3) :method:
- 103. ?GET :scheme:
- 104. ?https :host:
- 105. ?akamai.com :path:
- 106. ?/index :accept:
- 109. ?/new ? ?? ??? ??? ?? ???? ??, ? ???? ?? ??? Binary ??? ??
- 110. HTTP/2 ?¨C ??? ?? ?? ? ?? ? ????? ?¨C ??? ?? ?? ??? Static/Dynamic
- 111. ???? ?? ? ???? ??? Static,
- 112. ?????? ?? ??? Dynamic
- 113. ??? ? ??? ??? ??? index?? ?? ? ??? ???? ?? ??? ??? ?? ??? ??? ?? ? ?? ?? ????? HPACK
- 114. ?(RFC7541)? ?? ??? ??: ?Velocity ?2015
- 115. ? Client? ?? ??? ?? ????, ?? ??? ????,
- 116. ???? ?? ??? ? ?? ?) ??? ??? ?? CSS? ????? ??¡?.. Time Client Server HTTP/2 ?¨C ?? ??? ?? ???(Prioritization)
- 117. Stream
- 118. ?4 Frame
- 120. ?1 Frame
- 121. ?n Stream
- 122. ?4 promise Stream
- 123. ?2 promise Stream
- 124. ?1 Frame
- 125. ?2 Stream
- 126. ?1:
- 127. ?/index.html (Client
- 128. ???) Stream
- 129. ?2:
- 130. ?/jsscript.js (push
- 131. ?promise) Stream
- 132. ?4:
- 133. ?/cssstyle.css (push
- 134. ?promise) ? ??? ?? ??? ???, ??? ?? ? ? ?? (Push
- 135. ?Promise) ? ?????? PUSH_PROMISE? ?? ?? ??? ? ?? ? ???? ??? ???? ?? ?????? ???? ?~ HTTP/2 ?¨C ?? ??(Server
- 136. ?Push)
- 137. ???? ????.. ??? ??? HTTP/2? ?? ? ?? ??? ? ? ????
- 138. ?? ..
- 139. ?HTTP/2 ????? ? ?? ??? HTTP1.1? ??15~50% ??!
- 140. ??, HTTP1.1
- 141. ?
- 142. ????? ????? ??? ?? ?? ??? ??? ??!
- 143. ? HTML?? JS/CSS? ?? ??, HTTP
- 144. ????? ??? ?? ??: HTTP
- 145. ??? ?? ??, ???? ??? ?? ??? ???.. ??: HTML
- 146. ???? JS/CSS? ???? ?? ? ????? ?? ? HTTP/2??? ??? ???? ?? ?? Server
- 147. ?Push? ????, ?? ????? JS/CSS/Image
- 148. ??? ????.. HTTP/2 ?¨C ??? ????
- 149. ? ??? ???, ??, ?? ?? ? ?? ???? ????, CSS? background-position
- 150. ? ??? ???? ??? ???? ?? ??: HTTP
- 151. ??? ?? ??, ???? ??? ?? ??? ???.. ??: ??? ???? ?? ??, ?? ???? ???? ?? ???? ? HTTP/2??? ??? ????? ?? ?? Server
- 152. ?Push? ????, ?? ????? Image
- 153. ???? ????.. HTTP/2 ?¨C ??? ?????
- 154. HTTP/2 ?¨C ???? ?? js1.js ? ???? text? ????? ??? ??? ??, HTTP ?? ? ??? ??: HTTP
- 155. ??? ?? ??, ???? ??? ?? ??? ???.. ??: ??? js ???? ??? ??? ??? merged.js? ???? ? ? HTTP/2??? ???? ?? ?? ?? Server
- 156. ?Push? ????, ?? ????? JS/CSS/..?? ????.. js2.js js3.js merged.js
- 157. HTTP/2 ?¨C ??? ?? ??(Domain
- 158. ?Sharding) ? ??? 1??, ?? ?? 6?? ?? ??? ?? ???? ??? ?? ??: ????? ???? ??? ?? ?? ?? ?? ?? ??: ??? ??? DNS ?? ?? ? ??? ?? ? HTTP/2??? ??? ?? ?? ?? ?? - Multiplexing? ?? ?? ?? ?? ??? ?? ?? - HTTP/2? ?? ??? ???? ???, Single
- 159. ?Domain? ??
- 160. ?????, HTTP ??? ???? ?? ??? ????, HTTP/2? ????? ?????, ?? ??, ?? ?? ???? ???? ???? ?!
- 161. ?? ? ?? ??? ??? ??? ??! ? DNS ?? ??? ?? ???! ? TCP ?? ??? ??(Keep-Alive,
- 163. ?Proxy
- 164. ??? ?? ???? ? ??? ???(301/302
- 165. ???)? ??? ??! (RTT
- 166. ????) ? ???? Byte
- 167. ??? ???! (???? Cookie
- 168. ??? ??) ? Text ? ????? Content-Encoding:
- 169. ?gzip ??? ???? ? ???? ?? ???? ???? ? ??? ??? ?? ?? ??? byte
- 170. ???? ?? ? ???? ?? ?? ????? ? ???? ?? ???? ?? ? ??? ??????????? ???? ?? ???? ???
- 171. ?? ?? HTTP/2 ???? ??? ??????. ? ????? ???? ??? ??? TCP connection?? ?????,Stream ??? ??? ??? ?? ??? ? ???. ??? ??? ???? stream?? ???, ??? Connection ?Keep-?©\Alive, ?Pipelining? ??? ?? ???. ? ?? ?? ?? ? ?? ?? ??? ??? ????, ??? ??? Huffman ?coding???? ???? ???? ?? ??? ???? HTTP/2 ?¨C FAQs
- 172. ?? ?? HTTP/2 ???? ??? ??????. ? ??? ?? ?? ? ??? ?? ???? ?? ?? ?? ?? ??, ??? ?? ?? ???? ?? ???? ?? ??? ??? ?? ???. ? ?? ?? ?????? ???? ?? ???? ?? ????? ????, ? ??? ????? ?? ????? ?? ????? ???? ?? ???. ?????? ?? ??? ?? ??? ? ? ????. HTTP/2 ?¨C FAQs
- 173. HTTP/2 ?¨C FAQs ? ? HTTP2.0? ???, HTTP/2???? HTTP/2? ???? binary
- 174. ?frame
- 175. ???? ?? HTTP1.X ???? ?? ???? ?????? HTTP/2? ???, IETF? HTTP2.X
- 176. ??? ??? ?? ???? ????? ?? ?????. ? HTTP/2? ???? SPDY? ??? ?????? SPDY? ???? ?? ???? ?? HTTP/2? ???? ???? ?? ????. ??? ??? 2016? 2?, Chrome ????? ??? SPDY ??? ??? ?? ???.
- 177. ? HTTP/2? ???? ????, ?? ?? ?????? ??? ???, HTTP/2 ??? ???? ?????? ?? ?? ?? ????? ???? ??, ?? ????? ???? ????, ??? ???? HTTP1.1? ????? ? ?? ????? ??? ???? ???. HTTP/2 ?¨C FAQs
- 178. ?? ???.