Amazon Technologies, Inc.

Paul Francis Dean Ferraro

Jason George McHugh

Andrew Jay Roths

Abraham Martin Passaglia

Maximilian Francis Barrows

Eric Allan Shell

Persistent connections between multiple client devices and multiple back-end service components are managed using a consistent hashing-based approach to route distribution. A load balancer distributes the connections across multiple gateway servers. Each connection is associated with a device having an identifier, which can be hashed using a selected hashing algorithm. The gateway servers are assigned values over a hashing range. When a connection is established for a device, the hash value for that device can be mapped to a corresponding gateway server. The primary gateway server establishing the connection can store information (e.g., the port or interface) for the connection, and can send identifying information to the corresponding gateway server determined by the hash value. When a backend service wants to locate the connection, the service hashes the device identifier to determine the corresponding gateway server, which returns the identity of the primary gateway server hosting the connection.

Distributed connection management

Approaches are described for automatically generating new security credentials, such as security tokens, which can involve automatically re-authenticating a user (or client device) using a previous security token issued to that user (or device). The re-authentication can happen without any knowledge and/or action on the part of the user. The re-authentication mechanism can invalidate and/or keep track of the previous security token, such that when a subsequent request is received that includes the previous security token, the new security token can be invalidated, and the user caused to re-authenticate, as receiving more than one request with the previous security token can be indicative that the user's token might have been stolen.

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Seattle, WA, United States of America

Paul Francis Dean Ferraro