Apache Spark™ is a multi-language engine for executing data engineering, data science, and machine learning on single-node machines or clusters.

The system will be flexible and allow users to specify their own set of rules for price movements and triggers for notifications. This is a useful tool for anyone interested in keeping track of their investments and making informed decisions in the stock market.

A Chrome extension is a small software program that is designed to add functionality to the Google Chrome web browser. Extensions can be developed using web technologies such as HTML, CSS, and JavaScript. Therefore, JavaScript is often used in the development of Chrome extensions to add interactivity and to implement the logic of the extension.

Spring MVC is a module in the Spring framework that helps you build web applications. It is a framework that helps you build web applications in a clean and modular way, by providing a structure for request handling and a model-view-controller design pattern.

Spring makes programming Java quicker, easier, and safer. Spring’s focus on speed, simplicity, and productivity has made it the world’s most popular Java framework. Spring works on microservices, reactive, cloud, web apps, serverless, event driven, and batch services.

Spark SQL is the top active component in spark 3.0 release. Most of the resolved tickets are for Spark SQL. These enhancements benefit all the higher-level libraries, including structured streaming and MLlib, and higher level APIs, including SQL and DataFrames. Various related optimizations are added in latest release.

There is a problem about word segmentation when I use Chinese in ES. Elasticsearch is the distributed, restful search and analytics engine. You can use Elasticsearch to store, search, and manage data for Logs，Metrics，A search backend，Application monitoring，Endpoint security.