Data Archival in Elastic Search

Can you help me with how to archive data in Elasticsearch. that I don't know what is curator and data shrink. I am fresher to Elasticsearch. from where I have to start studying and what all things I have to do?

Welcome! I'm not sure what you mean by archiving data in Elasticsearch... can you elaborate?

You can store data for any amount of time in Elasticsearch or you can use the built-in snapshot/restore feature to make backups to an external store like Amazon S3.

Curator is an tool that can do various jobs for you, some of those are better implemented in Elasticsearch itself now. (E.g. index lifecycle management.)

Please look at ILM as a starting place for this.