What is reason for FULLTEXT index couldn't add for huge data set?

Question

In my database contains 3 millions records. Initially haven't any FULLTEXT index in my database. Now I'm trying to add FULLTEXT index using Create index statement, that take huge time and browser showing connecting and ram goes to 70%. I feel that nothing happen to database. what should I follow? Is there any other way to add FULLTEXT index? If I'm add FULLTEXT index is that affect to next inserting values? 1st I want to anyhow add FULLTEXT index to my table. I'm using Xammp MySql database.

Answer 1

1.Create the dummy table like your original table structure.
2.create indexes on your dummy table which want you.
3.take a dump from your original table and import to dummy.
4.drop the original table and rename the dummy table to original name.