I have storing major data in mysql and logs are stored in cassandra. Cassandra db getting heavier and difficult to do queries.
So I want to migrate all my cassandra's table in mysql is it possible?

Correct me if I'm wrong, but isn't Cassandra a NoSQL database? I'm sure it's possible to move all of the data into MySQL, but it wouldn't be as simple as just running a migration script. Since MySQL is a relational database, you'd have to overhaul your entire database schema, and restructure how your data will function with MySQL.