mysql：`my.cnf`中的未知变量

Question

I follow these instructions to speed up loading a big local file ( 500+M , 10+M rows) into MySQL, adding configurations to /etc/mysql/my.cnf :

[mysql]
#no-auto-rehash # faster start of mysql but no tab completition
local-infile=1

# add following code
innodb_doublewrite = 0
innodb_support_xa = 0

but encounter following issues:

mysql: unknown variable 'innodb_doublewrite=0'
mysql: unknown variable 'innodb_support_xa=0'

PS: MySQL version

$ mysql --version
mysql  Ver 14.14 Distrib 5.6.27, for debian-linux-gnu (x86_64) using  EditLine wrapper

Answer 1

Put them under [mysqld] , not [mysql] .

Also, make sure that innodb_buffer_pool_size is about 70% of available RAM.

Even then, you may hit some timeout.

Or you may need to chunk the file up. (10K rows per chunk might be reasonable.)