[hornetq-dev] DNS SRV discussion continued from forum

The forum seems to be blocking replies, maybe easier to continue this on email https://developer.jboss.org/message/906244?et=watches.email.thread#906244 DNS SRV records are explicitly designed for both load balancing and failover. Clients using these should be traversing all the records until they find a working server. SRV client code is usually more willing to do this than client code that just checks an A record. For simple and very static setups (people who don't have a high load but want to have two servers for redundancy and maybe add a third in future), manually creating the SRV records is sufficient and very quick. For more advanced setups - like the dynamic growth of a cluster in a grid scenario - it is possibly to use dynamic DNS updates. This works a lot like the way DHCP clients put themselves in DNS on a corporate LAN or the way that some home routers send their dynamic IP to be associated with a fixed hostname in DNS. HornetQ servers could act as dynamic DNS clients using something like the dnsjava library, the examples page shows how to do this very concisely: http://www.dnsjava.org/dnsjava-current/examples.html This would be most useful for non-Java clients e.g. STOMP and REST clients. If people are developing clients using those technologies, Python, Perl, etc, they may not be able to get any benefit from the Fuse fabric, JGroups or any other bespoke client code that is only available as a JAR. For Java users, it is also beneficial, as DNS SRV is something very standard that can be supported by sysadmins and other non-developers who don't have in-depth knowledge of JBoss frameworks.