Table is full MySQL error

If you’re using MySQL’s MEMORY table storage engine for anything intensive, you may run into the following error.

Table is full

This means what it says – memory tables have a fixed size they are allowed to me, 16mb by default, and once they reach this size, MySQL will prevent you from inserting any more data, to prevent the table from using too much memory.

If you run into this error, you can either increase the size in MySQL’s configuration, or you can switch to a disk based table engine such as Archive or InnoDB.