How to figure out if mysql index fits entirely in memory

Question

Is there a way to determine whether a mysql index fits entirely in available memory? If so, how would I:

• Determine size of mysql indexes
• Determine ava

Answer 1

To find memory available to MySQL, look in my.cnf, likely located at: /etc/mysql/my.cnf

key_buffer_size = 264M

To find size of indexes for a table: SHOW TABLE status FROM [DBNAME]