[PHP] PHP 7.1.0 beta1 特性

PHP 7 都還沒摸熟，PHP7.1 beta就出了...，不努力點還真是追不上技術啊~
來記錄一下這次的features吧!

• Nullable Types
• Square bracket syntax for array destructuring assignment
• Allow specifying keys in list()
• Generalize support of negative string offsets
• Void Return Type
• Class constant visibility modifiers
• Multi catch

[pycon]pycon 2016 day 3 小整理 from 共筆

關於Django & Twisted

• Scaling Django Application

  Django server only response one request a time

  concurrent request = thread x pools
  Higher scale means higher complexity
  有沒有更好的方法去容納更多的 request ?
  CPU-bound: 數學運算、資料運算等
  IO-bound: Database requests, web requests, other network IO
  ex. 跟資料庫溝通獲取某些資訊
  

[pycon]pycon 2016 day 2 小整理 from 共筆

關於迪士尼動畫使用的技術

• Even if we do things in C++, we always make python binding with SWIG or CFFI.
• Easier to do unit test in Python than C++.
• All animations are handcrafted.
• We want xxxxx! Python has a library doing that.
• Scripting language is not just about syntax and grammar, it’s libraries that matter.
• Disney’s Hyperion Renderer
• Early response is important.
• Disney’s Open Source
• Free software is free as in puppy. It is free, but you have feed it, etc. You have a lot of responsibility. It is not “free”.
• Disney’s Github
• Disney’s Talk
• Speaker’s Mail

[pycon]pycon 2016 day 1 小整理 from 共筆

關於 TDD (Test-Driven Development)

• Red, green, refactor cycle
• 預想好使用情境
• 一次只會專注一個目標，一次解決一個問題
• 避免過度設計

結論？
Mindset：設計決策一次只聚焦在一個地方
好好評估環境適不適合TDD（連需求都不確定時，不建議使用TDD）

[MySQL] MySQL Group Replication講座小整理

以下整理一些參加 MySQL Group Replication的摘要：

MySQL Group Replication是一套可以使MySQL有 High Availability的plugin，有以下特點