test sns
测试内容SOLID Design Principles
SOLID: single responsibility (SOR), open-close (OCR), Liskov substitution (LSP), interface segregation (ISP), dependency injection (DI) (open-close + encapsulation of varies, etc) => next: Liskov Substitution DIP... #design #oop #patternA Bottom-up Spark Learning Guide
First, need to learn to monitor the status of your spark jobs. There is an excellent guide of spark UI from Databricks #spark
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