[MySQL] disk space is full

MySQL got stuck for a long time when loading data local infile. At first, it thought the file was too large, causing MySQL to be suspended. Check the size of the imported file. The maximum size is dozens of MB. There is no reason why MySQL will be suspended. How can this problem suddenly occur after a day of normal operation? On impulse, stop the MySQL service and restart it. The result shows that there is still a problem.

Later, I accidentally heard my colleague say that the data volume is too large and several TB is used up, and the disk may be used up... I suddenly realized. I deleted some useless files and tables in a hurry, and load data local infile can run normally temporarily ~~ God. How should I use up the disk again.