Region Data Requiring Serialization

Certain region types (including client regions) require serialization.

Region data in the following types of regions must be serializable:

To minimize the cost of serialization and deserialization, GemFire avoids changing the data format whenever possible. This means your data may be stored in the cache in serialized or deserialized form, depending on how you use it. For example, if a server acts only as a storage location for data distribution between clients, it makes sense to leave the data in serialized form, ready to be transmitted to clients that request it. Partitioned region data is always stored in serialized form with one exception—functions that add data to a partitioned region locally use the deserialized form.