According to one embodiment, a data processing apparatus includes a communicating unit, a managing unit, and a control unit. The communicating unit communicates with a plurality of external apparatuses. The managing unit manages first process information on a first process that is performed by a first external apparatus in the plurality of external apparatuses, and a first process result corresponding to the first process. The control unit transmits the first process result to a second external apparatus of a plurality of external apparatuses on the basis of the first process information, in accordance with a trouble of the first external apparatus, and gives an instruction of performing a second process following the first process with the second external apparatus.