The most valuable features of Amazon Elasticsearch are ease of use, native JSON, and efficiency. Additionally, handles many use cases and search grammar was useful.

Regarding valuable features of the solution, we found with the process, which we have used in both cases where we used the solution that while you're seeing the streaming of data, you can analyze in the initial phase what sort of data you are streaming and whether it is valuable. Secondly, the retry mechanism is also where we use Elasticsearch. In both cases, I think it's valuable.

It enables us to efficiently search and retrieve our event data, offering us a versatile approach to locate specific information within these logs. This flexibility allows us to conduct detailed searches and perform subsequent calculations.

In case there is a failure, Elastic manages everything well, and there no major downtime. There may be alternative instances created at the same time.

One valuable feature is that it takes the easy steps to upgrade the processing power of the computer. In addition, if we have to bind any type of the public IP or change the domain, it is instantly available in the help guide. The help guide is easy to access for the amendment. The help guide provides a step by step guide.  In most of the cases they provide us the code for the Java and the JavaScript. This sample code is helpful. For example, if we want to use the AWS Lambda function, we can use the help guide to complete the task.