Bravo! We have tried the major components of the Elastic Stack. You should now understand the basic concepts of the powerful Elastic Stack. We ran an example on Kibana to visualize some sample flight data from Elasticsearch. We also learned how to use Logstash to collect and parse log data from the system log file. We extended the use of Logstash as a central log-processing center by using Filebeat. We also played with the popular deployment technique of running the applications using the officially supported Elastic Stack Docker images.

In the next chapter, we will introduce Elasticsearch SQL. Yes, Elasticsearch also speaks SQL. You will learn the SQL semantics supported in Elasticsearch. You will also perform a SQL REST API with SQL statements. Also, you will work with JDBC (Java Database Connectivity), the software industry standard for databases.