US 9,240,954 B1Granted

Forward-based resource delivery network

AssigneeAmazon Technologies, Inc.

InventorsJoseph L. Ellsworth, Brandon W. Porter, Chris A. Suver, Christopher R. Newcombe

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Abstract

A resource delivery network and method for distributing content in the network is disclosed herein. The network comprises a plurality of servers arranged in tiers and partitioned. Each server includes a resource store with a set of resources for distribution to a successive tier. Updates to each successive tier are provided by a pull-forward client on servers in the tier. This forward propagation mechanism maximizes resource availability at edge servers in the network. Resources transmitted to the edge tier servers may be transformed, combined, and rendered without taxing lower tier servers. Transformation and pre-rendering of data can be performed by low priority CPU tasks at each layer of the system.

Claims20

Dependent claims

A computer-implemented method for distributing resources in a resource delivery network including a plurality of tiers, the method comprising:

under control of one or more computer systems configured with executable instructions,
comparing a first write log of a first server in a current tier of the resource delivery network to at least one portion of a second write log of a second server in a preceding tier of the resource delivery network, the first write log identifying one or more writes to a first data store of the first server;
obtaining one or more resources in response to determining that the one or more resources are not included in the first data store;
receiving, from a third server in a successive tier of the resource delivery network, a first request for at least one portion of the first write log;
sending the at least one portion of the first write log to the third server in response to the first request, the at least one portion of the first write log used to determine that the one or more resources stored in the first data store are not included in a second data store of the third server;
receiving a second request for the one or more resources stored in the first data store;
and
sending the one or more of the resources to the third server.

5 more elements

A computer-implemented method for distributing resources in a resource delivery network including a plurality of tiers, the method comprising:

under control of one or more computer systems configured with executable instructions,
comparing first resources of a first server in a current tier of the resource delivery network to second resources of a second server in a preceding tier of the resource delivery network;
causing the first server to obtain one or more of the second resources in response to determining that the one or more of the second resources are not included among the first resources;
sending, to a third server in a successive tier of the resource delivery network, data used to determine that the one or more of the second resources are not included among third resources of the third server;
receiving, from the third server, a request for the one or more of the second resources;
and
sending the one or more of the second resources to the third server.

4 more elements

A resource delivery network, comprising:

a first tier including at least one authoritative server, the at least one authoritative server including an authoritative data store;
one or more additional tiers each including a respective plurality of servers;
and
an edge tier including a plurality of edge servers,
wherein at least a subset of resources written to the authoritative data store are propagated by at least one server in a tier of the one or more additional tiers to at least one other server in a successive tier, the first tier being a preceding tier for a highest tier of the one or more additional tiers, the edge tier being a successive tier for a lowest tier of the one or more additional tiers, and at least one first server of the one or more additional tiers comprises a processor and memory including instructions that, upon being executed by the processor, cause the at least one first server to:
compare first resources of the at least one first server in a current tier of the resource delivery network to second resources of a second server in the preceding tier of the resource delivery network;
obtain one or more of the second resources in response to determining that the one or more of the second resources are not included among the first resources;
send, to a third server in the successive tier, data used to determine that the one or more of the second resources are not included among third resources of the third server;
receive, from the third server, a request for the one or more of the second resources;
and
send the one or more of the second resources to the third server.

8 more elements

Dependencies are inferred from the claim text.

Facts

Application: 13/842,970Filed 15 Mar 2013 · continuation
Priority: 2 Oct 2009
Granted: 19 Jan 2016
Term ends: Not estimatedThe source records don’t support an estimate.

Classification11 codes

H04N 21/2225
Secondary servers, e.g. proxy server, cable television Head-end: local VOD servers
G06F 16/13
File systems; File servers: file access structures, e.g. distributed indices
H04L 41/0823
Configuration setting: characterised by the purposes of a change of settings, e.g. optimising configuration for enhancing reliability
H04L 41/5025
Ensuring fulfilment of SLA: by proactively reacting to service quality change, e.g. by reconfiguration after service quality degradation or upgrade