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Nguyễn Thái Sơn Professional
Asked At: 2021-09-24 19:34 In: DevOps
Nguyễn Thái Sơn Professional Asked At: 2021-09-24 19:34 In: DevOps
deploy java application
Câu 1 : Anh Dũng ơi, anh có làm zero downtime deployment chưa ạ. Anh có thể chia sẻ em cách xử lý zero downtime được không ạ.

Câu 2 : Khi deploy code mới lên mà vẫn còn message trong queue chưa xử lí xong thì phải làm thế nào ạ ?

Giả sử logic của code cũ và code mới là khác nhau và muốn message cũ giữ logic của code cũ. Em xin chân thành cảm ơn anh

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tvd12 Professional
Added an answer at: 2021-09-24 20:40
tvd12 Professional
Added an answer at: 2021-09-24 20:40
  1. Anh thấy có nhiều cách để làm, ví dụ:
  • Rolling update: Khởi động lại dần dần các server, bọn anh đang dùng cách này
  • Blue Green Deployment: Tạo ra 2 tài nguyên phần cứng chạy song song, sau đó kiểm tra traffic đã vào server mới được update chưa thì có thể tắt server cũ.
  • Canary deployment: Deploy trên các tập user khác nhau, cái này facebook hay các hệ thống global hay dùng em ạ
  1. Bọn anh thường chặn traffic và chờ 1 khoảng thời gian, ví dụ 1 phút chẳng hạn, để các message được tiêu thu hết.
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