MySQL Server has Gone Away in Drupal 7

Question

In my form field type, i edit the file menu these error will appear,

Fatal error: Uncaught exception \'PDOException\' with message \'SQLSTATE[HY00

Answer 1

This is for Linux Users.In terminal,
Step 1:

locate my.cnf

And you copy the Path

Step 2:

sudo gedit "Paste the path"

Step 4: Changed "max_allowed_packet" from "1m" to "32m" and saved my.cnf

 sudo "path" restart

(or) Do Normal System Restart