Patent ID: 7113962
Filing Date: 2006-09-26
Classification: G06F,Y10S

Abstract:
1. A computer-implemented method of updating content over a network, comprising: receiving a second version of a file from a global server; updating a first version of the file on an origin server with the second version of the file, wherein the second version of the file is associated with content on the origin server; if the second version of the file is updated on the origin server, automatically replacing on a cache server each entry associated with the first version of the file with a corresponding entry in the second version of the file, wherein content on the cache server is automatically updated in response to updating of content on the origin server; enabling at least a first origin server to be taken offline, wherein each origin server that is taken offline includes at least some content that corresponds to content on at least a second origin server that remains online, and updating a content item on each origin server that is taken offline with at least a portion of the second version of the file; and enabling each origin server that is taken offline to be brought back online, and updating content on the cache server that corresponds to the updated content item on each origin server that is brought back online and if the offline origin server is brought back online automatically expiring a time field for all entries of each file associated with the updated second version of the file.