πŸƒβ€β™€οΈ
Today I Learned
  • Today I Learned
  • algorithm
    • Binary Search (이진 탐색)
    • Brute Force Search (완전탐색)
    • DFS와 BFS
    • Dijkstra Algorithm (λ‹€μ΅μŠ€νŠΈλΌ μ•Œκ³ λ¦¬μ¦˜)
    • Dynamic Programming (동적 κ³„νšλ²•)
    • Floyd-Warshall Algorithm (ν”Œλ‘œμ΄λ“œ-μ›Œμ…œ μ•Œκ³ λ¦¬μ¦˜)
    • Greedy
    • μ •λ ¬ μ•Œκ³ λ¦¬μ¦˜(Sorting Algorithm)
  • data-structure
    • Array, List, LinkedList
    • Graph vs Tree
    • Hash, Map, HashMap
    • Heap
    • Stack, Queue (μŠ€νƒ, 큐)
  • database
    • Database Lock
    • Execution Plan
    • Index
    • Join Algorithm
    • MySQL μ‚¬μš©μž κΆŒν•œλΆ€μ—¬
    • Normalization (μ •κ·œν™”)
    • Row-Oriented vs Column-Oriented
    • Transaction
    • νŠΈλžœμž­μ…˜ 격리 μˆ˜μ€€ (Transaction Isolation Level)
    • VARCHAR의 κΈΈμ΄μ œν•œ
  • λ””μžμΈ νŒ¨ν„΄μ˜ μ’…λ₯˜
    • Abstract Factory Pattern
    • Adapter Pattern
    • Bridge Pattern
    • Builder Pattern
    • Chain of Responsibility Pattern
    • Class Diagram
    • Command Pattern
    • Composite Pattern
    • Decorator Pattern
    • Facade Pattern
    • Factory Method Pattern (νŒ©ν† λ¦¬ λ©”μ†Œλ“œ νŒ¨ν„΄)
    • Flyweight Pattern
    • Iterator Pattern
    • Mediator Pattern
    • Memento Pattern
    • Observer Pattern
    • Prototype Pattern
    • Proxy Pattern
    • SOLID
    • Singleton Pattern
    • State Pattern
    • Strategy Pattern
    • Template Method
    • UML
    • 객체지ν–₯_νŒ¨λŸ¬λ‹€μž„
  • docker
    • Docker
    • Docker Network
  • etc
    • Block vs Non-block, Sync vs Async
  • git
    • Git Merge vs Git Rebase
    • 자주 μ‚¬μš©ν•˜λŠ” Git λͺ…λ Ήμ–΄ λͺ¨μŒ
  • java
    • Annotation
    • Exception Handling (μ˜ˆμ™Έ 처리)
    • Generic
    • JVM
    • Java μ½”λ“œμ˜ μ‹€ν–‰ κ³Όμ •
    • Lambda Expression
    • Object Class
    • Optional
    • Primitive Type & Reference Type
    • Reflection
    • Serialize And Deserialize
    • Stream
    • String, StringBuilder, StringBuffer
    • Tiles
    • Type Casting
    • μ™œ Java의 μ •λ ¬ ν•¨μˆ˜ sort()λŠ” static λ©”μ†Œλ“œμΌκΉŒ?
    • μΆ”μƒν΄λž˜μŠ€μ™€ μΈν„°νŽ˜μ΄μŠ€μ˜ 차이
    • effective-java
      • Item 1. μƒμ„±μž λŒ€μ‹  정적 νŒ©ν† λ¦¬ λ©”μ„œλ“œλ₯Ό κ³ λ €ν•˜λΌ
      • Item 10. equalsλŠ” 일반 κ·œμ•½μ„ μ§€μΌœ μž¬μ •μ˜(μ˜€λ²„λΌμ΄λ”©)ν•˜λΌ
      • Item 11. equalsλ₯Ό μ˜€λ²„λΌμ΄λ”©ν•  κ±°λ©΄ hashCode도 μ˜€λ²„λΌμ΄λ”©ν•˜λΌ
      • Item 12. toString은 항상 μ˜€λ²„λΌμ΄λ”©ν•˜λΌ
      • Item 13. clone μ˜€λ²„λΌμ΄λ”©μ€ μ£Όμ˜ν•΄μ„œ μ§„ν–‰ν•˜λΌ
      • Item 14. Comparable을 κ΅¬ν˜„ν• μ§€ κ³ λ €ν•˜λΌ
      • Item 15. ν΄λž˜μŠ€μ™€ λ©€λ²„μ˜ μ ‘κ·Ό κΆŒν•œμ„ μ΅œμ†Œν™”ν•˜λΌ
      • Item 16. public ν΄λž˜μŠ€μ—μ„œλŠ” public ν•„λ“œκ°€ μ•„λ‹Œ μ ‘κ·Όμž λ©”μ„œλ“œλ₯Ό μ‚¬μš©ν•˜λΌ
      • Item 17. λ³€κ²½ κ°€λŠ₯성을 μ΅œμ†Œν™”ν•˜λΌ
      • Item 18. 상속 λŒ€μ‹  μ»΄ν¬μ§€μ…˜μ„ μ‚¬μš©ν•˜λΌ
      • Item 19. 상속을 κ³ λ €ν•΄ μ„€κ³„ν•˜κ³  λ¬Έμ„œν™”ν•˜λΌ. 그렇지 μ•Šμ•˜λ‹€λ©΄ 상속을 κΈˆμ§€ν•˜λΌ
      • Item 2. μƒμ„±μžμ— λ§€κ°œλ³€μˆ˜κ°€ λ§Žλ‹€λ©΄ λΉŒλ”λ₯Ό κ³ λ €ν•˜λΌ
      • Item 20. 좔상 ν΄λž˜μŠ€λ³΄λ‹€λŠ” μΈν„°νŽ˜μ΄μŠ€λ₯Ό μš°μ„ ν•˜λΌ
      • Item 21. μΈν„°νŽ˜μ΄μŠ€λŠ” κ΅¬ν˜„ν•˜λŠ” μͺ½μ„ 생각해 섀계
      • Item 22. μΈν„°νŽ˜μ΄μŠ€λŠ” νƒ€μž…μ„ μ •μ˜ν•˜λŠ” μš©λ„λ‘œλ§Œ μ‚¬μš©ν•˜λΌ
      • νƒœκ·Έ 달린 ν΄λž˜μŠ€λ³΄λ‹€λŠ” 클래슀 계측ꡬ쑰λ₯Ό ν™œμš©
      • Item 24. 멀버 ν΄λž˜μŠ€λŠ” λ˜λ„λ‘ static으둜 λ§Œλ“€λΌ
      • Top Level ClassλŠ” ν•œ 파일 λ‹Ή ν•˜λ‚˜λ§Œ μ„ μ–Έν•˜λΌ
      • Item 26. 둜우 νƒ€μž…(raw type)은 μ‚¬μš©ν•˜μ§€ 말라
      • Item 27. 비검사 κ²½κ³ λ₯Ό μ œκ±°ν•˜λΌ
      • Item 28. λ°°μ—΄λ³΄λ‹€λŠ” 리슀트λ₯Ό μ‚¬μš©ν•˜λΌ
      • Item 29. 이왕이면 μ œλ„€λ¦­ νƒ€μž…μœΌλ‘œ(클래슀둜) λ§Œλ“€λΌ
      • Item 3. private μƒμ„±μžλ‚˜ μ—΄κ±° νƒ€μž…μœΌλ‘œ μ‹±κΈ€ν„΄μž„μ„ λ³΄μ¦ν•˜λΌ
      • Item 4. μΈμŠ€ν„΄μŠ€ν™”λ₯Ό λ§‰μœΌλ €κ±°λ“  private μƒμ„±μžλ₯Ό μ‚¬μš©ν•˜λΌ
      • Item 5. μžμ›μ„ 직접 λͺ…μ‹œν•˜μ§€ 말고 의쑴 객체 μ£Όμž…μ„ μ‚¬μš©ν•˜λΌ
      • Item 6. λΆˆν•„μš”ν•œ 객체 생성을 ν”Όν•˜λΌ
      • Item 7. λ‹€ μ“΄ 객체 μ°Έμ‘°λ₯Ό ν•΄μ œν•˜λΌ
      • Item 8. finalizer와 cleaner의 μ‚¬μš©μ„ ν”Όν•˜λΌ
      • Item 9. try-finallyλ³΄λ‹€λŠ” try-with-resourcesλ₯Ό μ‚¬μš©ν•˜λΌ
  • linux
    • Linux의 Permission
  • network
    • OSI 7 Layer
    • Subnet
    • 그림으둜_λ°°μš°λŠ”_http_&_network_basic
  • python
    • 파이썬의 μž¬κ·€ μ œν•œ(Recursion Limit)
  • server
    • CI & CD
    • Cache
    • Cloud Service
    • REST API
    • 정적 μ„œλ²„(Web Server)와 동적 μ„œλ²„(Web Application Server, WAS)
  • spring
    • Configuration
    • @RequestParam, @RequestBody, @ModelAttribute
    • AOP (Aspect Oriented Programming)
    • μ˜μ‘΄μ„± μžλ™ μ£Όμž…
    • Bean Scope (빈의 유효 λ²”μœ„)
    • [Error] Bean could not be injected because it is a JDK dynamic proxy
    • Component Scan
    • πŸ±β€πŸ‘€ Component vs Bean
    • μ—¬λŸ¬ 개의 @Configuration(μ„€μ • 파일)을 μ‚¬μš©ν•˜λŠ” 방법
    • DI (Dependency Injection, μ˜μ‘΄μ„± μ£Όμž…)
    • Filter, Interceptor, (Spring) AOP
    • IoC Container
    • Nested Class의 Bean 등둝
    • Profile
    • Properties
    • Spring Bean의 생λͺ…μ£ΌκΈ°(life-cycle)
    • Spring vs Spring Boot
    • Thymeleaf
    • jpa
      • Dirty Checking
      • JPA의 Fetch μ „λž΅
      • JPA N+1 Problem
    • spring-boot
      • Spring Web Layer (μŠ€ν”„λ§ μ›Ή 계측)
      • Spring Boot
    • spring-mvc
      • Argument Resolver
      • Filter
      • Interceptor
      • RestController
      • Validator
      • Exception Handling
      • Spring MVC
    • spring-security
      • Spring Security
  • testing
    • Test Double (ν…ŒμŠ€νŠΈ 더블)
    • ν™”μ΄νŠΈλ°•μŠ€ ν…ŒμŠ€νŠΈ, λΈ”λž™λ°•μŠ€ ν…ŒμŠ€νŠΈ
  • web
    • Browser Caching
    • CORS
    • HTTP Header
    • HTTP와_HTTPS
    • πŸ›‘οΈOAuth
    • PRG Pattern
    • Query Parameter, Path Variable
    • πŸŸ’πŸŸ‘πŸ”΄ Status Code (μƒνƒœ μ½”λ“œ)
    • WebSocket
    • application/octet-stream
    • Cookie-Session
    • JWT
    • multipart/form-data
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Last updated 1 year ago

ν΄λΌμš°λ“œ μ„œλΉ„μŠ€

ν΄λΌμš°λ“œ μ„œλΉ„μŠ€λž€, μ„œλΉ„μŠ€μ˜ μš΄μ˜μ„ μœ„ν•΄ ν•„μš”ν•œ λ¦¬μ†ŒμŠ€(μ„œλ²„, μŠ€ν† λ¦¬μ§€, μ†Œν”„νŠΈμ›¨μ–΄ λ“±)λ₯Ό μ œκ³΅ν•˜λŠ” μ„œλΉ„μŠ€λ₯Ό λ§ν•œλ‹€.

ν΄λΌμš°λ“œ μ„œλΉ„μŠ€λ₯Ό μ΄μš©ν•˜λŠ” 고객은 ν΄λΌμš°λ“œ μ„œλΉ„μŠ€μ˜ μœ ν˜•μ— 따라 일반 μ‚¬μš©μžμ΄κΈ°λ„, λ‹€λ₯Έ μ„œλΉ„μŠ€μ˜ κ°œλ°œμžμ΄κΈ°λ„ ν•˜λ‹€. μ•„λž˜μ—μ„œλŠ” 주둜 μ‚¬μš©λ˜λŠ” ν΄λΌμš°λ“œ μ„œλΉ„μŠ€λ₯Ό μœ ν˜•λ³„λ‘œ μ •λ¦¬ν•΄λ³΄μ•˜λ‹€.

ν΄λΌμš°λ“œ μ„œλΉ„μŠ€μ˜ μœ ν˜•

좜처: bmc

On-Premise

  • ν΄λΌμš°λ“œ μ„œλΉ„μŠ€κ°€ λ“±μž₯ν•˜κΈ° μ΄μ „μ˜ 전톡적인 인프라 ꡬ좕/관리 방식

  • λͺ¨λ“  λ¦¬μ†ŒμŠ€λ₯Ό 기업이 직접 λ§ˆλ ¨ν•˜κ³  관리

  • μž₯점: λ³΄μ•ˆμ„±μ΄ λ†’λ‹€.

  • 단점: μ‹œμŠ€ν…œμ˜ ꡬ좕 및 관리에 λ§Žμ€ μ‹œκ°„κ³Ό λΉ„μš©μ„ μ†Œλͺ¨ν•˜κ²Œ λœλ‹€.

IaaS (Infrastructure-as-a-Service)

  • 핡심 IT μžμ›(가상/μ „μš© ν•˜λ“œμ›¨μ–΄, λ„€νŠΈμ›Œν‚Ή, μŠ€ν† λ¦¬μ§€)을 μ œκ³΅ν•˜λŠ” μ„œλΉ„μŠ€

  • μ‚¬μš©μžλŠ” OS, 미듀웨어, λŸ°νƒ€μž„ 등을 μ„ νƒν•˜μ—¬ μžμ‹ μ˜(λ˜λŠ” μ†ν•œ κΈ°μ—…μ˜) μ• ν”Œλ¦¬μΌ€μ΄μ…˜, SWλ§Œμ„ μš΄μ˜ν•  수 있으며, ν•˜λΆ€μ˜ λ¦¬μ†ŒμŠ€μ˜ 관리 및 운영 μ±…μž„μ€ IaaS μ„œλΉ„μŠ€ μ œκ³΅μžμ—κ²Œ μžˆλ‹€.

  • μ˜ˆμ‹œ: Amazon AWS, Microsoft Azure, Google의 GCE

PaaS (Platform-as-a-Service)

  • 인프라 ꡬ쑰 μ „λ°˜μ„ μ œκ³΅ν•˜λŠ” μ„œλΉ„μŠ€

  • μ‚¬μš©μžλŠ” μžμ‹ μ˜ μ• ν”Œλ¦¬μΌ€μ΄μ…˜μ˜ 관리 μ±…μž„λ§Œ κ°€μ Έ 효율적인 κ°œλ°œμ„ ν•  수 μžˆλ‹€.

  • μ˜ˆμ‹œ: Heroku λ“±

SaaS (Software-as-a-Service)

  • SW 자체λ₯Ό μ œκ³΅ν•˜λŠ” μ„œλΉ„μŠ€

  • μ‚¬μš©μžλŠ” λ³„λ„μ˜ μ„€μΉ˜ κ³Όμ • 등이 없어도 λ„€νŠΈμ›Œν¬μ— μ—°κ²°λœ μ»΄ν“¨ν„°λ§ŒμœΌλ‘œ μ„œλΉ„μŠ€λ₯Ό μ΄μš©ν•  수 μžˆλ‹€.

  • μ•žμ„  IaaS, PaaSλŠ” μ£Όμš” 고객측이 μ• ν”Œλ¦¬μΌ€μ΄μ…˜μ„ μ œκ³΅ν•˜κ³ μž ν•˜λŠ” 개발자(κΈ°μ—…)라면, SaaSλŠ” 쒅단 μ‚¬μš©μž(end-user)κ°€ μ£Όμš” 고객측이닀.

  • μ΅œκ·Όμ—λŠ” λŒ€λΆ€λΆ„μ˜ SaaSκ°€ IaaS λ˜λŠ” PaaS 기반으둜 μ œκ³΅λœλ‹€.

  • μ˜ˆμ‹œ: Notion, Google Drive λ“±

좜처

https://kinsta.com/blog/types-of-cloud-computing/
  • ν΄λΌμš°λ“œ μ„œλΉ„μŠ€
  • ν΄λΌμš°λ“œ μ„œλΉ„μŠ€μ˜ μœ ν˜•
  • On-Premise
  • IaaS (Infrastructure-as-a-Service)
  • PaaS (Platform-as-a-Service)
  • SaaS (Software-as-a-Service)
  • 좜처
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  1. server

Cloud Service

ν΄λΌμš°λ“œ μ„œλΉ„μŠ€