May 2021
Beginner to intermediate
380 pages
7h 48m
Korean
Content preview from 이벤트 기반 마이크로서비스 구축
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246
이벤트 기반 마이크로서비스 구축
상태 비저장 스트리밍 애플리케이션은 규모를 확장/축소하기가 아주 쉽습니다. 처리 리소스가
컨슈머 그룹에 (서) 가입/탈퇴하는 것만으로도 리밸런스가 일어나 파티션이 재할당되고 스트
리밍이 재개됩니다. 상태 저장 애플리케이션은 애플리케이션에 할당된 워커에 상태를 로드해
야 할뿐만 아니라 그렇게 로드된 상태를 입력 이벤트 스트림의 파티션 할당과 맞추어야 하므로
처리하기가 더 어렵습니다.
지금부터 상태 저장 애플리케이션을 확장하는 두 가지 주요 전략을 살펴보겠습니다. 세부 기술
사양은 다르지만 애플리케이션 다운타임을 최소화한다는 목표는 같습니다.
11.7.1
애플리케이션 실행 중 확장
첫 번째 전략은 애플리케이션을 멈추거나 처리 정확도에 영향을 주지 않고 애플리케이션의 인
스턴스를 추가, 삭제, 재할당하는 것입니다. 상태와 셔플된 이벤트 모두 정교하게 잘 처리해야
하므로 일부 대용량 스트리밍 프레임워크에서만 가능한 작업입니다. 인스턴스를 추가/삭제하
려면 할당된 스트림 파티션을 전부 재배포하고 최종 체크포인트 다음부터 상태를 다시 로드해
야 합니다. [그림
11
-
6
]은 다운스트림의
reduce
작업이 업스트림의
groupByKey
작업 결과
셔플된 이벤트를 소싱하는 일반적인 셔플입니다. 업스트림 인스턴스 중 하나라도 갑자기 멎으 ...
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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.