Hi, Please check the following pages: https://github.com/nathanmarz/storm/wiki/Local-mode https://github.com/nathanmarz/storm/wiki/Running-topologies-on-a-production-cluster https://github.com/nathanmarz/storm/wiki/Setting-up-a-Storm-cluster
In short: In local mode you use LocalCluster object. In cluster mode you use StormSubmitter. Regards, Richards Peter.
