Replication Overview

The following sections provide a documentation Table of Contents and additional information sources about replication.

Distributed Caching With Terracotta

For the best distributed caching experience, see Terracotta Server, which is also open source and free to use.

Note: these modules are generally outdated.

Topic	Description
RMI Replicated Caching	Ehcache provides replicated caching using RMI. To set up RMI replicated caching, you need to configure the CacheManager with a PeerProvider and a CacheManagerPeerListener. Then for each cache that will be replicated, you need to add one of the RMI cacheEventListener types to propagate messages. You can also optionally configure a cache to bootstrap from other caches in the cluster.
JGroups Replicated Caching	JGroups can be used as the underlying mechanism for the replication operations in Ehcache. JGroups offers a very flexible protocol stack, reliable unicast, and multicast message transmission. To set up replicated caching using JGroups, you need to configure a PeerProviderFactory. For each cache that will be replicated, you then need to add a cacheEventListenerFactory to propagate messages.
JMS Replicated Caching	JMS can also be used as the underlying mechanism for replication operations in Ehcache. The Ehcache jmsreplication module lets organisations with a message queue investment leverage it for caching. It provides replication between cache nodes using a replication topic, pushing of data directly to cache nodes from external topic publishers, and a JMSCacheLoader, which sends cache load requests to a queue.

The following pages provide additional information about replicated caching with Ehcache: