Hello.
You may use ALTER TABLE .. DISABLE KEYS to speed up the loading process on the MyISAM table.
I gave that a try but I had to cancel "Alter Table ... Enable Keys" after 49 hours. I find it amazing that it takes only 6.25 hours to load 450 million rows into the table using Load Data Infile with the keys disabled, but over 49 hours (maybe a lot more) to rebuild 3 indexes. Even with 100g of disk space dedicated to the sort file. It started using "Repair with Filesort" for the first 7 hours, then it switched to "Repair with KeyCache". I don't know anyone who can afford to take their database down for a few days (weeks?) while building an index.
Mike
mos <[EMAIL PROTECTED]> wrote: > I have a 50g CSV file that I am trying to import into an empty MyISAM > table. It appears to go fine except after 10 hours it hasn't completed. A > "Show Process List" shows Info="load data infile ..." and State="Repair > with keycache". The table has a few hundred million rows of data. I assume > it is using "Repair with keycache" to rebuild the indexes after the data > has been loaded. > > From what I've read "Repair with keycache" is going to take a huge amount > of time to complete. How do I disable "Repair with keycache" and use > "Repair with sort" instead (which should be faster, right?)? I'm using > MySQL 4.1.10 on Win XP and 1gb ram. > > TIA > > Mike > >
-- For technical support contracts, goto https://order.mysql.com/?ref=ensita This email is sponsored by Ensita.NET http://www.ensita.net/ __ ___ ___ ____ __ / |/ /_ __/ __/ __ \/ / Gleb Paharenko / /|_/ / // /\ \/ /_/ / /__ [EMAIL PROTECTED] /_/ /_/\_, /___/\___\_\___/ MySQL AB / Ensita.NET <___/ www.mysql.com
-- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED]
-- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED]
