To my knowledge there is no XMPP server with automatic clustering.You should be aware that automatic clustering with XMPP is extremely difficult because it is a connected protocol and it cannot be totally transparent, unless you only want to support HTTP (XMPP over BOSH).
You will end up with question like: what do you do with running TCP/IP connection when you want to remove a node ? Do you want to migration session when adding a node ? What do you do with running TCP/IP connection.
ejabberd has good clustering support however and it runs extremely well on EC2 and is very stable. This is your best bet.
OpenFire to my knowledge is not an option with no real, largely available clustering support.
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据我所知，没有具有自动集群功能的 XMPP 服务器。您应该知道，使用 XMPP 自动集群非常困难，因为它是一个连接协议，并且不可能完全透明，除非您只想支持 HTTP（XMPP over BOSH）。
您最终会遇到这样的问题：当您想要删除节点时，如何运行 TCP/IP 连接？添加节点时是否要迁移会话？运行 TCP/IP 连接会做什么？
然而，ejabberd 具有良好的集群支持，并且它在 EC2 上运行得非常好并且非常稳定。这是你最好的选择。
据我所知，如果没有真正的、大部分可用的集群支持，OpenFire 就不是一个选择。
To my knowledge there is no XMPP server with automatic clustering.You should be aware that automatic clustering with XMPP is extremely difficult because it is a connected protocol and it cannot be totally transparent, unless you only want to support HTTP (XMPP over BOSH).
You will end up with question like: what do you do with running TCP/IP connection when you want to remove a node ? Do you want to migration session when adding a node ? What do you do with running TCP/IP connection.
ejabberd has good clustering support however and it runs extremely well on EC2 and is very stable. This is your best bet.
OpenFire to my knowledge is not an option with no real, largely available clustering support.