MySQL server has gone away

This error means the mysql server was restarted or shutdown... probably the server you're on was overloaded.

If you are using shared server, some other sites using too much CPU. This can happen even if you use VPS, infact many VPS share resource available to a server, so if one of the VPS use too much resource, this can happen.

For more details read

http://dev.mysql.com/doc/refman/5.0/en/gone-away.html


ERRORS
mysqldump Got packet bigger than max_allowed_packet bytes