ERROR 2006 (HY000) MySQL server has gone away

ERROR 2006 (HY000): MySQL server has gone away 

SET GLOBAL max_allowed_packet=1073741824;

For More Details:
http://dev.mysql.com/doc/refman/5.5/en/server-system-variables.html#sysvar_max_allowed_packet

Flash for chromium on ubuntu

For 14.04
sudo apt-get install pepperflashplugin-nonfree

For other versions and more details:

http://askubuntu.com/questions/449103/chromium-34-and-later-cannot-detect-flash-plugin