Make LOAD DATA INFILE run even faster for a MyISAM table

When you want to import a large MyISAM table from a file and the table has many indexes, this may help you.

1. Create the table properly (with index)
2. Flush table

   $ mysqladmin flush-tables -u bing -p
   

3. Removes all use of indexes for the table

   $ sudo myisamchk --keys-used=0 -rq /var/lib/mysql/dbName/tblName
   

4. LOAD DATA INFILE.Adjust the parameters corresponding to your csv file.

   $ mysql -u your_user_name -p
   mysql> use your_db_name;
   mysql> LOAD DATA INFILE 'your_data_file.csv' INTO TABLE `your_tbl_name` FIELDS TERMINATED BY ';' ENCLOSED BY '"' ESCAPED BY '\\' LINES TERMINATED BY '\n' IGNORE 1 LINES;
   

5. Re-create the indexes

   $ sudo myisamchk --key_buffer_size=1024M --sort_buffer_size=1024M -rq /var/lib/mysql/dbName/tblName
   

6. Flush table

   $ mysqladmin flush-tables -u bing -p
   

Refer to mysql.com for more details.