DATA PROCESSING METHOD AND DEVICE

Embodiments of the present invention provide a data processing method and apparatus. The data processing apparatus in the present invention includes: a first hash module, at least one second hash module, and a block data scanner module, where the first hash module includes multiple slots, and each slot is in a one-to-one correspondence with each data partition or is in a one-to-one correspondence with each data set; each of the at least one second hash module is associated with one slot in the first hash module, and the second hash module is configured to store location information of service data in a data partition corresponding to an associated slot and that is in a storage engine or location information of service data in a data set of a subscription relationship and that is in a storage engine. By means of the data processing apparatus in the present invention, when service data in a data set of a subscription relationship or a data partition needs to be synchronized to another node, all service data in the data set of the corresponding subscription relationship or the corresponding data partition can be quickly synchronized to the another node, and processing efficiency is high.