Load balancing method, device and equipment of distributed file system

Abstract

The embodiment of the invention discloses a load balancing method, device and equipment of a distributed file system and a computer readable storage medium. The method comprises the steps of obtainingmetadata servers MDS0 in a metadata cluster and a total load value of all metadata servers MDSn; calculating a target load value according to the total load value and the total number N of the metadata servers in the metadata cluster; judging whether the current load value of the metadata servers MDS0 is larger than a target load value or not; if yes, comparing current load values of all the metadata servers MDSn and the target load value, and selecting all the metadata servers MDSn of which the current load values are smaller than the target load value as all target metadata servers; pollingall the target metadata servers, exporting the catalogs of the metadata servers MDS0 to corresponding target metadata servers till the load values of the metadata servers MDS0 are not larger than thetarget load value. The efficiency of load balancing and the performance of the distributed file system are improved.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of distributed storage systems, and in particular, to a load balancing method, device, device, and computer-readable storage medium of a distributed file system. Background technique [0002] In the field of distributed storage, the performance of small files is crucial in high-performance scenarios. In order to improve the performance of small files, it is necessary to increase the IOPS of the metadata server. The IOPS capability that a single metadata server can provide is limited, so it is necessary to provide The distributed file system configures a metadata cluster, and the metadata cluster includes multiple metadata servers. In a distributed file system, all metadata is by default in a main metadata server MDS 0 on, when the metadata server MDS 0 When the load is too high, you need to manually set the metadata server MDS 0 The load on the metadata server is dumped to other meta...

AI Technical Summary

Problems solved by technology

In a distributed file system, all metadata is by default in a main metadata server MDS 0 on, when the metadata server MDS 0 When the load is too high, you need to manually set the metadata server MDS 0 The load on the metadata server is dumped to other metadata server MDS to realize the metadata server MDS 0 However, the manual balancing method in the prior art is inefficient and affects the performance of the distributed file system to a certain extent.

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