May 2022
Beginner to intermediate
756 pages
21h 30m
Korean
book
HTTP 완벽 가이드
by David Gourlry, Brian Totty, Lee Eung Jun, Sang -Il Jeong, Anshu Agarwal, Seilu Reddy, Marjorie Sayre
Content preview from HTTP 완벽 가이드
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186
HTTP
2
부 HTTP 아키텍처
클라이언트들에게 각각 한 번씩 전송하게 된다. 똑같은 바이트들이 네트워크를 통
해 계속 반복해서 이동한다. 이 불필요한 데이터 전송은 값비싼 네트워크 대역폭을
잡아먹고, 전송을 느리게 만들며, 웹 서버에 부하를 준다. 캐시를 이용하면, 첫 번째
서버 응답은 캐시에 보관된다. 캐시된 사본이 뒤이은 요청들에 대한 응답으로 사용
될 수 있기 때문에, 원 서버가 중복해서 트래픽을 주고받는 낭비가 줄어들게 된다.
7.2
대역폭 병목
캐시는 또한 네트워크 병목을 줄여준다. 많은 네트워크가 원격 서버보다 로컬 네트
워크 클라이언트에 더 넓은 대역폭을 제공한다(그림 7-1). 클라이언트들이 서버에
접근할 때의 속도는, 그 경로에 있는 가장 느린 네트워크의 속도와 같다. 만약 클라
이언트가 빠른 LAN에 있는 캐시로부터 사본을 가져온다면, 캐싱은 성능을 대폭 개
선할 수 있을 것이다(특히 큰 문서들에 대해서).
(100Mbit/sec ethernet)
(1.4Mbit/sec T1)
샌프란시스코 지사
아틀랜타 본사
클라이언트
캐시로의 빠른 접속 서버로의 느린 WAN 접속
캐시
서버
그림
7
-
1
캐시는 광역 통신망의 제한된 대역폭으로 인한 병목을 개선할 수 있다.
그림 7-1에서, 죠의 하드웨어 주식회사의 샌프란시스코 지사에 있는 사용자는 애
틀랜타의
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.