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# Spark

* [What is Spark](https://spark.apache.org/)
  * A unified analytics engine for large-scale data processing.
* What is Sparkcontext?
  * It's spark application container.
    * It takes configuration to start with spark working environment.
    * In [Apache Flink](https://flink.apache.org/), it is "Environment".
    * It's similar the Springboot. You need to have something like the following to start with.

      ```
        SpringApplication.run(DemoApplication.class, args);
      ```