To use distributed and replicated regions, you should understand how they work and your options for managing them.
Note: The management of replicated and distributed regions supplements the general information for managing data regions provided in Basic Configuration and Programming. See also
A distributed region automatically sends entry value updates to remote caches and receives updates from them.
createoperations (the creation of an entry with a non-null value is seen as an update by remote caches that already have the entry key). Entry updates are distributed selectively - only to caches where the entry key is already defined. This provides a pull model of distribution, compared to the push model that you get with replication.
In a distributed region, new and updated entry values are automatically distributed to remote caches that already have the entries defined.
Step 1: The application updates or creates the entry. At this point, the entry in the M1 cache may not yet exist.
Step 2: The new value is automatically distributed to caches holding the entry.
Step 3: The entry's value is the same throughout the cluster.