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Chapter 2. Cache Managers
A Cache Manager is the primary mechanism to retrieve a cache instance in Red Hat JBoss Data Grid, and is a starting point for using the cache.
In JBoss Data Grid, a cache manager is useful because:
- it creates multiple cache instances on demand using a provided standard.
- it retrieves existing cache instances (i.e. caches that have already been created).
2.1. Types of Cache Managers
Red Hat JBoss Data Grid offers the following Cache Managers:
EmbeddedCacheManageris a cache manager that runs within the Java Virtual Machine (JVM) used by the client. Currently, JBoss Data Grid offers only theDefaultCacheManagerimplementation of theEmbeddedCacheManagerinterface.RemoteCacheManageris used to access remote caches. When started, theRemoteCacheManagerinstantiates connections to the Hot Rod server (or multiple Hot Rod servers). It then manages the persistentTCPconnections while it runs. As a result,RemoteCacheManageris resource-intensive. The recommended approach is to have a singleRemoteCacheManagerinstance for each Java Virtual Machine (JVM).
