Load Balancing Methods

One or more non-transitory computer readable media comprising computer readable instructions that, when executed by a processor, configure a data processing system to perform:

• creating, by a metadata server in a distributed file system and in response to a directory creation operation triggered for the first directory, at least one second director corresponding to the first directory, wherein the first directory is managed by the metadata server, and a hierarchy level of each second directory is less than a hierarchy level of the first directory;
• and
• performing the following operations on each second directory:
• selecting, from one or more other metadata servers, another metadata server whose current load value satisfies a preset load condition as a target metadata server, when it is determined, based on a directory category of the first directory and a hierarchy relationship between the first directory and the second directory, that the second directory satisfies a migration condition;
• and
• sending directory information of the second directory to the target metadata server, and locally deleting the directory information of the second directory, to enable the target metadata server to create the second directory based on the received directory information of the second directory, and storing the operation data into the second directory when operation data for the second directory is subsequently received.

A data processing system comprising:

• a processor, and memory storing computer readable instructions that, when executed by the processor, configure the data processing system to perform:
• creating, by a metadata server in a distributed file system and in response to a directory creation operation triggered for the first directory, at least one second director corresponding to the first directory, wherein the first directory is managed by the metadata server, and a hierarchy level of each second directory is less than a hierarchy level of the first directory;
• and
• performing the following operations on each second directory:
• selecting, from one or more other metadata servers, another metadata server whose current load value satisfies a preset load condition as a target metadata server, when it is determined, based on a directory category of the first directory and a hierarchy relationship between the first directory and the second directory, that the second directory satisfies a migration condition;
• and
• sending directory information of the second directory to the target metadata server, and locally deleting the directory information of the second directory, to enable the target metadata server to create the second directory based on the received directory information of the second directory, and storing the operation data into the second directory when operation data for the second directory is subsequently received.