[筆記] Ultimate AWS Certified Developer Associate (16)

章節連結

給自己 2022 年的新目標 – AWS Certified Developer Associate 的學習筆記。這篇筆記下 ELB ( Elastic Load Balancer )  的相關資訊。
notes-ultimate-aws-certified-developer-associate-1


課程相關資訊

[連結]:https://www.udemy.com/course/aws-certified-developer-associate-dva-c01/learn/lecture/26100964

本篇範圍:Chapter 7

請注意:本系列文章為個人對應課程的消化吸收後,所整理出來的內容。換言之,並不一定會包含全部的課程內容,也有可能會添加其他資源來說明。


內容

1. Scalability 是指系統 / 應用程式面對大流量的能力,可以分為水平和垂直兩方面
2. Vertical Scalability 是將自身的能力變大,例如原先使用 t2.small 變成 t2.large,但會遇上硬體方面的極限
3. Horizontal Scalability 是指建立一個分散式的系統,能有越多的裝置來處理請求
4. High Availability 是指建立一套高穩定性的系統,可以互相支援 ( like multi-AZ )

Load Balancing

1. 將使用者的請求分別轉到不同的 EC2 進行處理,它可用於串流資料、對使用者端僅露出單一 DNS 位置、對你的 EC2 進行定期檢查、提供 HTTPS、提供 stick cookie 以確保同一使用者的狀態可在不同的 EC2 中保持、區隔出 public 和 private 的流量…等
2. healthCheck 是透過 port 號,和指定路徑確認回傳碼是否為 200
3. CLB 支援 HTTP/HTTPS, TCP, SSL、ALB 支援 HTTP/HTTPS/WebSocket、NLB 支援 TCP, TLS, UDP、Gateway Load Balancer 支援 Network Layer (3)  的 IP Protocol


系列文章

  • [筆記] Ultimate AWS Certified Developer Associate (9)
  • [筆記] Ultimate AWS Certified Developer Associate (8)
  • [筆記] Ultimate AWS Certified Developer Associate (7)
  • [筆記] Ultimate AWS Certified Developer Associate (6)
  • [筆記] Ultimate AWS Certified Developer Associate (5)
  • [筆記] Ultimate AWS Certified Developer Associate (4)
  • [筆記] Ultimate AWS Certified Developer Associate (3)
  • [筆記] Ultimate AWS Certified Developer Associate (29)
  • [筆記] Ultimate AWS Certified Developer Associate (28)
  • [筆記] Ultimate AWS Certified Developer Associate (27)
  • [筆記] Ultimate AWS Certified Developer Associate (26)
  • [筆記] Ultimate AWS Certified Developer Associate (25)
  • [筆記] Ultimate AWS Certified Developer Associate (24)
  • [筆記] Ultimate AWS Certified Developer Associate (23)
  • [筆記] Ultimate AWS Certified Developer Associate (22)
  • [筆記] Ultimate AWS Certified Developer Associate (21)
  • [筆記] Ultimate AWS Certified Developer Associate (20)
  • [筆記] Ultimate AWS Certified Developer Associate (2)
  • [筆記] Ultimate AWS Certified Developer Associate (19)
  • [筆記] Ultimate AWS Certified Developer Associate (18)
  • [筆記] Ultimate AWS Certified Developer Associate (17)
  • [筆記] Ultimate AWS Certified Developer Associate (15)
  • [筆記] Ultimate AWS Certified Developer Associate (14)
  • [筆記] Ultimate AWS Certified Developer Associate (13)
  • [筆記] Ultimate AWS Certified Developer Associate (12)
  • [筆記] Ultimate AWS Certified Developer Associate (11)
  • [筆記] Ultimate AWS Certified Developer Associate (10)
  • [筆記] Ultimate AWS Certified Developer Associate (1)
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