How do I set MySQL temporarily to read-only through the command line?

by

To answer your original question, you can put your whole database to read only mode by this commands:

FLUSH TABLES WITH READ LOCK;
SET GLOBAL read_only = 1;

and back to normal mode with:

SET GLOBAL read_only = 0;
UNLOCK TABLES;

Beware that this is an operation which will have deep impact on the behavior of the database. So before executing this, read the available documentation to the commands above. A much more common way is to revoke DML privileges from the specific user and afterwards grant them back.

Leave a Comment