Continuous upgrading of computers in a load balanced environment

摘要

The present invention is directed towards methods and systems for performing maintenance on computers included in a group of load balanced computer. A maintenance agent identifies a computers in the group as requiring maintenance, and a second computer as having up-to-date maintenance and a load level below a limit. The load balancer may assign a request to the second computer responsive to the identification. Responsive to a determination that spare capacity from the plurality of computers available to receive requests is above the threshold and that the first computer is idle, the maintenance agent may remove, for maintenance, the first computer from the plurality of computers available to receive requests. The maintenance agent may identify the first computer as having up-to-date maintenance responsive to the maintenance.

主权项

1. A method for updating a plurality of devices in a load balanced environment, comprising:
(a) identifying, by a maintenance agent, a first device as requiring maintenance, the first device comprising one of a plurality of devices available to receive requests from a load balancer; (b) updating, in a maintenance tracking table, a maintenance status of the first device to indicate that maintenance of the first device is necessary; (c) determining, by the load balancer, that spare capacity from the others of the plurality of devices available to receive requests is above a threshold; (d) determining, by the load balancer, that the first device is idle; and (e) removing, for maintenance by the maintenance agent responsive to the determination that (i) the spare capacity from the plurality of devices available to receive requests is above the threshold and (ii) the first device is idle, the first device from the plurality of devices available to receive requests.