mySQL innodb_flush_method is a read only variable

Question

I am using mySQL 5.6, I did a show variables in my database and I found out that my innodb_flush_method is blank and I want to set it to O_DSYNC . However, when I do a

set `innodb_flush_method`= `O_DSYNC`;

it say innodb_flush_method is a read only variable. Anyone know how do I set it to O_DSYNC ?

Answer 1

You need to edit your my.cnf and put the value:

innodb_flush_method = O_DSYNC

Then restart your mysql server