Use S3_Ping for EC2 clustering
S3_Ping Finally you can configure your jgroups instances to use shared storage to store the details of the cluster nodes. S3_ping was added to Jgroups in 2.6.12 and 2.8, and allows the Amazon S3 to be used as the shared storage. It is very much experimental at the moment but offers another method of clustering without a central server. Be sure that you have signed up for Amazon S3 as well as EC2 to use this method.  Sample S3_Ping configuration                                                            Â