Photon-lite Feature light down version of Photon, built using Spring Boot. Implementing only the core streaming APIs. Running Clustering Set the -cluster flag to one of none, clustering is fully switched off. multicast, discovery is implemented via UDP multicast and messaging on top of a shared data source Persistence config Set the '-type' flag to control the persistence engine used. 'mem' - use in memory storage, ie non durable at all. Useful for testing, but will eventually blow the heap. 'h2' - use a file based H2 database. H2 Persistence