I installed mariadb 10.2.10 with
innodb_file_per_table option enabled.
Then I create table with
Innodb engine and inserted 1 M row into.
Now I look and local (
..data/mydbname/table_name.ibd) file is grown, but grown system
ibdata1 file also. Why? I expected that because of
innodb_file_per_table is enabled, only local
.ibd should grown, but not
Why size of
ibdata1 also grows up? What I misunderstood ?