ELK is the acronym for three open source tools—Elasticsearch, Logstash, and Kibana. It is also called Elastic Stack. The heart of this system is Elasticsearch, a search engine based on another open source project written in Java, Apache Lucene. This library is especially suitable for applications that require full-text searches in cross-platform environments. The main reason for the popularity of Elasticsearch is its performance. Of course, it has some other advantages, such as scalability, flexibility, and easy integration by providing a RESTful, JSON-based API for searching stored data. It has a large community and many use cases, but the most interesting one for us is its ability to store and search logs generated by applications.Logging is the main reason for including Logstash in ELK Stack. This open source data-processing pipeline allows us to collect, process, and input data into Elasticsearch.
Logstash supports many inputs that pull events from external...
