JGroups 3.2.0.Final 发布了，该版本最重要的特性包括：
RELAY2
Used for cross-site replication in Infinispan .
Compared to RELAY, RELAY2 allows to be connected to more than 1 site. In 3.3, we're planning to add hierarchical routing, ie. to allow for tree-like site composition.
Multicasting across sites is also supported.
[http://www.jgroups.org/manual-3.x/html/user-advanced.html#Relay2Advanced ]
Internationalized logging
The most important user-facing warnings and error messages (e.g. configuration errors) have been internationalized.
Error/warning translations are in jg-messages.properties. If someone wants to translate these into a different language, e.g. French, just copy jg-messages.properties into jg-messages_fr.properties and translate the messages. The new file now only needs to be added to the classpath, no changes to JGroups !
Reduction of error/warn messages
Sometimes there are a lot of recurring warnings or error messages, e.g. warnings about messages received from different clusters, or warnings about messages from members with different JGroups versions.
These can now be suppressed for a certain time, e.g. we can configure that there's only *one* warning every 60 seconds about messages from different clusters.
[https://issues.jboss.org/browse/JGRP-1518 ]
完整的改进记录请看 https://issues.jboss.org/browse/JGRP/fixforversion/12316419
JGroups是一个可靠的群组通讯Java工具包。它基于IP组播(IP multicast)，但在可靠性，组成员管理上对它作了扩展。
JGroups的可靠性体现在：
1，对所有接收者的消息的无丢失传输（通过丢失消息的重发）
2，大消息的分割传输和重组
3，消息的顺序发送和接收
4，原子性：消息要么被所有接收者接收，要么全不
主页：http://www.jgroups.org/
下载：http://sourceforge.net/projects/javagroups/files/
来自:开源中国社区
