I started to learn Faiss in September 2018. Although there was a lot of confusion at the beginning, it was finally officially used in the project after two months of study.
Here is a summary. 中文版.
为了能在生产上，更好地使用 Elasticsearch，需要有些注意点，如硬件、配置等。
Spark Core 中有一些重要的服务，比如 SparkEnv 、DAGScheduler 、TaskScheduler 等。