SQLSTATE[HY000]: General error: 2006 MySQL server has gone away on running cron job magento

Question

I am working on Magento site and I get this error:

SQLSTATE[HY000]: General error: 2006 MySQL server has gone away on running 
cron job magento

Answer 1

If you have any actions which do not operate with Magento DB for more than 20 seconds (I met shared hosting with such wait_timeout=20), you have to close DB connection. Magento will create new connection on next call to DB.

    Mage::getSingleton('core/resource')->getConnection('read')->closeConnection();