Patent ID: 9330004
Filing Date: 2016-05-03
CPC Classification: G06F,H04L

Claim Text:
1. A data processing method based on a cache node group for data caching, wherein each cache node in the group comprises a local replacement-allowable data storage space for storing data accessed by a local client and a collaborative replacement-allowable data storage space for storing data content accessed by a non-local client; the method comprising: searching, by an accessed cache node receiving a data request from a client, for data content corresponding to the data request; querying a preset data content directory list when the data content is not found in a local replacement-allowable data storage space of the accessed cache node, wherein a mapping relationship between data content and corresponding cache nodes that store the data content is preset in the data content directory list; according to the mapping relationship, determining a target cache node containing the data content among one or more other cache nodes in the cache node group; and obtaining the data content from a collaborative replacement-allowable data storage space of the target cache node, and storing the data content to the local replacement-allowable data storage space of the accessed cache node, wherein when a number of times that the collaborative replacement-allowable data storage space is accessed is too great so that a utilization ratio of the link in which the cache node is located exceeds a preset link utilization ratio, the process of accessing the collaborative replacement-allowable data storage space, further comprises a process of transferring the data content in the collaborative replacement-allowable data storage space, which is specifically: