Patent ID: 8756342
Filing Date: 2014-06-17
Classification: G06F,H04L

Abstract:
1. A method for processing data comprising: storing a data item at a cache server, the data item being accessed by a data request from a remote computer, the data item stored at the cache server being based on underlying content maintained at a data source, the data request including a uniform resource locator associated with the data item; receiving at a data center manager a data change message from a trigger associated with the data source, the data change message generated in response to a change in the underlying content at the data source for the data item; generating an expiration command at the data center manager in response to the data change message; receiving the expiration command at the cache server from the data center manager; and marking the data item at the cache server as expired according to the expiration command; controlling, by a flow control server, retrieval by the cache server of the data item from an origin server, wherein controlling retrieval comprises: