Electronic Arts Inc.

Greg William Schaefer

Jian Zhou

Shengyong Li

Anand Nair

Mengxin Ye

Miao Xiong

Xin Feng Zhang

Roy Harvey

An example method of live migration of distributed databases may include implementing a first database access mode with respect to a distributed database to be migrated from an original set of storage servers to a destination set of storage servers, wherein, in the first database access mode, database read requests are routed to the original set of storage servers and database update requests are routed to both the original set of storage servers and the destination set of storage servers. The method may further include copying a plurality of records of the distributed database from the original set of storage servers to the destination set of storage servers. The method may further include switching to a second database access mode, in which database read requests are routed to the destination set of storage servers and database update requests are routed to both the original set of storage servers and the destination set of storage servers. The method may further include switching to a post-migration database access mode, in which database read and update requests are routed to the destination set of storage servers.

Live migration of distributed databases

An example method of live migration of distributed databases may include implementing a first intermediate database access mode with respect to a distributed database to be migrated from an original set of storage servers to a destination set of storage servers, wherein, in the first database access mode, database read requests are routed to the original set of storage servers and database update requests are routed to both the original set of storage servers and the destination set of storage servers. The method may further include copying a plurality of records of the distributed database from the original set of storage servers to the destination set of storage servers. The method may further include switching to a second intermediate database access mode, in which database read requests are routed to the destination set of storage servers and database update requests are routed to both the original set of storage servers and the destination set of storage servers. The method may further include switching to a post-migration database access mode, in which database read and update requests are routed to the destination set of storage servers.

A live-hosted multiplayer online gaming system includes a plurality of game clients, a game controller, and a live-operator input. The game controller includes logic to operate a live-hosted multiplayer online game, logic to couple the game controller to the plurality of game clients via a network, and logic to receive inputs from and to send outputs to the plurality of game clients. The live operator console further includes logic to couple the live operator input to the game server to enable communication between the live operator input and the game controller, logic to synchronize the live operator input to the current game state, and logic to send messages to the game controller that cause the game controller to create events that control at least in part the execution of the live hosted multiplayer online game.

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Minneapolis, MN, United States of America

Greg William Schaefer