How do we migrate the archived the data in MySQL DB to ElasticSearch .
All supported releases of M&R
You can enable events migration from MySQL to ES from emc-smarts Solution Pack configuration for Events Component. PFB screenshot for reference. Kindly refer APG-Event-Database-Migration.pdf document present under /APG_HOME/Event-Processing/Event-Database-Migration/emc-smarts/doc for more details on this utility.
NOTE:
It is recommended to test this migration in the test system first before implementing in the production.