Method and device for controlling reconstruction speed and medium

Abstract

The invention discloses a method and device for controlling a reconstruction speed and a medium. The method comprises the steps: setting a reconstruction priority for at least one target storage poolaccording to an operation state of the storage pool; calculating the target reconstruction speed of the target reconstruction object in the target storage pool according to the reconstruction bandwidth corresponding to the reconstruction priority and the number of the reconstruction objects in each storage pool; and controlling the target reconstruction object to perform data reconstruction according to the target reconstruction speed. According to the invention, different reconstruction priorities are set for different target storage pools according to the operation states of the storage pools; and the reconstruction speed of the target reconstruction object under the target storage pool is controlled according to the reconstruction priority of the target storage pool and the number of the reconstruction objects needing data reconstruction in each storage pool, so that therefore, the reconstruction speed of the reconstruction object in the target storage pool is independently controlled, and the control of the reconstruction speed of the reconstruction object in each target storage pool is not influenced mutually.

Description

technical field [0001] The invention relates to the field of computers, in particular to a method, device and medium for controlling reconstruction speed. Background technique [0002] With the advent of the era of information explosion, the data that the file system needs to manage increases exponentially. In order to manage and store these data, a distributed file system appears. [0003] The distributed file system stores data in different storage pools, each storage pool corresponds to multiple object storage devices (OSD), and each OSD generally corresponds to a hard disk. The main function of OSD is to store data, replicate data, balance data and restore data. When the hard disk attached to the OSD fails, the data of the OSD needs to be recovered from other OSDs. The process of data recovery is called data reconstruction. When expanding the distributed system and adding new OSDs and corresponding hard disks, data balancing is required. OSDs migrate part of the data i...

AI Technical Summary

Problems solved by technology

[0004] The existing technology controls the reconstruction speed of the distributed file system as a whole by adjusting the data reconstruction priority of the distributed file system, so that the reconstruction speed of each reconstruction object in the distributed file system is the same. If a storage pool If you adjust the reconstruction speed of the reconstruction objects in the storage pool, the reconstruction speeds of the reconstruction objects in other storage pools will also change accordingly, affecting each other

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