Anyone who have knowledge in elastic search?

Question

I am having bit knowledge on elestic search. I want to deep dive into the elastic search.
What is the use over using this?

Answer 1

it's just an open source search engine

Answer 2

It's used in big data to collect required data , you can use elastic search and kibana for this

Answer 3

managing large amount of data is hard,if you study data analysis ,you will get to why it's needed

Answer 4

May be used.. But y they are using elastic what is the advantage over using it