Magento SQLSTATE[HY000]: General error: 2006 MySQL

Question

I have this error:

SQLSTATE[HY000]: General error: 2006 MySQL server has gone away, query was: SELECT main_table .* FROM catalogrule AS main_table WHERE ( is_active = '1')

I am not able to add products it is very slow, getting down website?

How can I fix this?

Answer 1

Try to set the /etc/my.cnf as

[mysqld]
max_allowed_packet=16M
wait_timeout = 1800 
connect_timeout = 120