# Apache Spark Assembly {% hint style="danger" %} **In construction!!!** {% endhint %} Apache Spark 3.0.0 `branch-3.0` \+ Hadoop v2.7 Target readers * intermediate level on spark, who knows the basic operators and workflow of apache spark * who want to know the detailed and actual design of the spark system * who want to interpret big systems Principle of writing this book * how they designed the system * how the program will work * why they designed the system like this (in my own reasonable guess) --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://jinhoko.gitbook.io/apache-spark-assembly/master.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.