7.3. Locating Entries in Distribution Mode

The consistent hash algorithm used in Red Hat JBoss Data Grid's distribution mode can locate entries deterministically, without multicasting a request or maintaining expensive metadata.

A PUT operation can result in as many remote calls as specified by the num_copies parameter, while a GET operation executed on any node in the cluster results in a single remote call. In the background, the GET operation results in the same number of remote calls as a PUT operation (specifically the value of the num_copies parameter), but these occur in parallel and the returned entry is passed to the caller as soon as one returns.