Method and apparatus for content synchronization
First Claim
1. A computer-implemented method for processing data requests, comprising:
- receiving data at a cache server;
receiving an expiration command associated with the data at the cache server from a remote client;
marking the data as expired in response to the expiration command;
receiving a request for the data at the cache server;
requesting permission to send the request to an origin server in order to retrieve the data upon determining that the data is marked as expired;
determining a priority associated with the data;
assigning the priority to the request;
storing the request in a queue of requests;
sending the request from the queue to the origin server in response to the priority of the request having a highest value compared to other requests in the queue.
6 Assignments
0 Petitions
Accused Products
Abstract
When requested content is available at a data center, the data center returns the requested content to the data center. When the requested content is locally unavailable at the data center, the requested content is retrieved from an origin server. The retrieval of the content from the origin server may be delayed based on the processing load at the origin server. When retrieval of the content is delayed, the request is prioritized and placed in a queue for handling by the origin server based on the priority of the request. Also, when retrieval of the content is delayed, a status page may be communicated to the browser to inform a user of the delay and provide alternate content and status information related to the request determined as a function of the request or the current state of the origin server.
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Citations
20 Claims
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1. A computer-implemented method for processing data requests, comprising:
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receiving data at a cache server; receiving an expiration command associated with the data at the cache server from a remote client; marking the data as expired in response to the expiration command; receiving a request for the data at the cache server; requesting permission to send the request to an origin server in order to retrieve the data upon determining that the data is marked as expired; determining a priority associated with the data; assigning the priority to the request; storing the request in a queue of requests; sending the request from the queue to the origin server in response to the priority of the request having a highest value compared to other requests in the queue. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A non-transitory computer readable medium including code for processing data requests, the code operable to:
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receiving data at a cache server; receiving an expiration command associated with the data at the cache server from a remote client; marking the data as expired in response to the expiration command; receiving a request for the data at the cache server; requesting permission to send the request to an origin server in order to retrieve the data upon determining that the data is marked as expired; determining a priority associated with the data; assigning the priority to the request; storing the request in a queue of requests; sending the request from the queue to the origin server in response to the priority of the request having a highest value compared to other requests in the queue. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A system for processing data requests, comprising:
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an origin server operable to store data; a flow control server operable to; determine a priority associated with the data; assign the priority to a request for the data; a cache server operable to; receive data; receive an expiration command associated with the data from a remote client; mark the data as expired in response to the expiration command; receive a request for the data; request permission from the flow control server to send the request to an origin server in order to retrieve the data upon determining that the data is marked as expired; receiving the priority assigned to the request; storing the request in a queue of requests; sending the request from the queue to the origin server in response to the priority of the request having a highest value compared to other requests in the queue. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification