Method, Apparatus, and System for Issuing Partition Balancing Subtask

摘要

A method, an apparatus, and a system for issuing a partition balancing subtask, which are applied to a controller and may be used to implement migration of a partition between nodes. After receiving a second partition balancing task, the controller generates a second partition balancing subtask set, where the second partition balancing subtask set includes at least one partition balancing subtask, and each partition balancing subtask records: a migration partition, a node to which the migration partition belongs, and a destination node; searches a current partition balancing subtask set, and deletes a repeated partition balancing subtask between the second partition balancing subtask set and the current partition balancing subtask set; and issues remaining partition balancing subtasks after the repeated partition balancing subtask is deleted to the destination node recorded in each partition balancing subtask.

主权项

1. A method for issuing a partition balancing subtask, applied to a controller, wherein the controller and at least two nodes form a storage system, and wherein each node comprises a partition, the method comprises:
generating a second partition balancing subtask set after a second partition balancing task is received, wherein the second partition balancing subtask set comprises a partition balancing subtask, and wherein the partition balancing subtask records: a migration partition, a node to which the migration partition belongs, and a destination node; searching a current partition balancing subtask set; deleting a repeated partition balancing subtask between the second partition balancing subtask set and the current partition balancing subtask set; and issuing the partition balancing subtask in the second partition balancing subtask set after the repeated partition balancing subtask is deleted to the destination node recorded in the partition balancing subtask.