GEO-DISTRIBUTED DISASTER RECOVERY FOR INTERACTIVE CLOUD APPLICATIONS

摘要

Disaster recovery is provided for an application that is being hosted on a current data center, thus ensuring the availability of the application. An option for replicating session state data for the application is selected. This selection is made from a set of different session state data replication options each of which has different performance and resource cost trade-offs. The selected option determines how the session state data for the application is to be replicated. The selected option is implemented, where the implementation results in the session state data for the application being replicated outside of the current data center, thus ensuring that this data remains available in the event that the current data center goes offline.

主权项

1. A computer-implemented process for ensuring the availability of an application being hosted on a current data center, comprising:
using one or more server computers in the current data center to perform the following process actions: selecting an option for replicating session state data for the application, said selection being made from a set of different session state data replication options each of which comprises different performance and resource cost trade-offs, said selected option determining how said data is to be replicated; and implementing said selected option, the implementation resulting in said data being replicated outside of the current data center, thus ensuring that said data remains available in the event that the current data center goes offline.