The last packet successfully received from the server was 38,830,304 milliseconds ago. The last packet sent successfully to the server was 38,830,308 milliseconds ago. is longer than the server configured value of 'wait_timeout'. You should consider either expiring and/or testing connection validity before use in your application, increasing the server configured values for client timeouts, or using the Connector/J connection property 'autoReconnect=true' to avoid this problem. Query: SELECT COUNT(*) FROM productos RIGHT JOIN productoslast ON productos.numero=productoslast.numero LEFT JOIN productosdelete ON productos.numero=productosdelete.numero LEFT JOIN productosnavideno ON productos.numero=productosnavideno.numero WHERE productosdelete.numero IS NULL AND productosnavideno.numero IS NULL AND productos.numero IS NOT NULL Parameters: []