Google Inc.

Daniel Sumers Myers

Atul Adya

Gregory H Cooper

John Reumann

Michael Piatek

Arunabha Ghosh

A distributed network system includes at least one server having memory and one or more processors. The server performs the following operations in connection with propagating object updates to respective client devices: receiving a first object update message from an application server, the first object update message including a first object identifier and a first object version; updating an object update record that includes the first object identifier using the first object version, wherein the object update record includes a first client identifier; propagating the first object version from the object update record to a client-object registration record that includes the first client identifier; and sending a second object update message to a first client device associated with the first client identifier, wherein the second object update message includes the first object identifier and the first object version.

Method and system for distributing object update messages in a distributed network system

A computer-implemented method in a distributed network system is disclosed. The computer-implemented method includes: receiving, at a server, a first object update message from a server-side application, wherein the first object update message includes a first object identifier; identifying, among a plurality of object-client registration records, an object-client registration record that includes the first object identifier; updating the object-client registration record in accordance with the first object update message; selecting a set of client identifiers associated with the first object identifier from the object-client registration record; and, for a first client identifier in the selected set of client identifiers, sending a second object update message to a first client device associated with the first client identifier, wherein the second object update message includes the first object identifier.

Method and system for migrating object update messages through synchronous data propagation

A distributed network system includes at least one server and one client device, each having memory and one or more processors. The server performs the following operations: selecting a first client-object registration record including a first client identifier and a first object identifier; retrieving a pair of server-side object version and client-side object version from the first client-object registration record; determining a first set of incremental payloads to be delivered to the client device associated with the first client identifier in accordance with the pair of server-side object version and client-side object version; retrieving the first set of incremental payloads from a first object update record including the first object identifier; and sending a first object update message to the first client device, wherein the first object update message includes the first object identifier, the server-side object version and the retrieved first set of incremental payloads.

Method and system for delivering object update messages including payloads

A distributed network system includes a distributed server system and a plurality of client devices that are communicatively coupled to the distributed server system. The distributed server system includes multiple servers, each server including a set of client devices registered with the server. Through client re-registration, a client device can move its registration from one server to another server. Through server-side data replication, an object registration request submitted by a client device to a first server is forwarded to a second server without having the client device submitting the same request to the second server.

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Seattle, WA, United States of America

Daniel Sumers Myers