Bucket index resplitting method and device, equipment and medium

The embodiment of the invention discloses a storage bucket index resplitting method and device, equipment and a medium, and the method comprises the steps of when it is detected that the data volume on bucket index fragments exceeds a preset threshold value, establishing new bucket index fragments with the corresponding number according to the increment of data on the bucket index fragments; when a data writing task is received, distributing object information corresponding to the data writing task to the new bucket index fragment; increasing the corresponding number of new bucket index fragments according to the increment of the data, and directly writing the newly-added object data on the newly-added bucket index fragments without changing the object data on the original bucket index fragments. It is guaranteed that the object data volume on the bucket index fragment cannot be increased all the time, and it is also avoided that front-end service data writing is blocked due to data migration caused by splitt