Data group distribution method and system, electronic equipment and storage medium

The invention discloses a data group distribution method and system, electronic equipment and a computer readable storage medium. The method comprises the steps of determining the cache weight of eachstorage engine according to the total cache space, the number of the storage engines and the actual cache space of each storage engine; allocating a storage engine to each data group through an equalization algorithm, and determining an expected primitive group number of each storage engine according to the number of the storage engines, the total number of primitive groups and the cache weight of each storage engine; determining a storage engine of each primitive group according to the primitive affinity weight, and determining an actual primitive group number of each storage engine; and according to the difference value between the expected primitive group number and the actual primitive group number of each storage engine, adjusting the primitive affinity weight until a preset condition is met, and improving t