[infinispan-dev] Cluster wide node name uniqueness

[Bela Ban]

Unless you use UUIDs it's hard to guarantees name uniqueness. For 
instance, if there was a JGroups protocol which - before joining - sent 
a broadcast to all members, asking whether the name it picked was 
unique, and then joined, it would still not guarantee uniqueness. For 
instance, if we are in a partitioned state, then a name picked might be 
unique, but when a merge ensued later, we might discover that some other 
member in a different partition has the same name.


On 5/3/12 5:14 PM, Thomas Fromm wrote:
> Hi,
>
> I've the requirement, that I need configurable cluster node names. These
> names should be unique inside the cluster, new nodes with already
> existing node names inside the cluster should be rejected to joind the
> cluster and should fail at startup with an appropiate exception.
>
> Additional, because I need these names in case of view events, something
> like CacheManager.getNodeName(Address address)
>
> Its a bit tricky to realise that using only the ISPN API, so I'd prefer
> that could be done inside ISPN.
>
> Is this change request possible for 5.2? What o you think?


-- 
Bela Ban, JGroups lead (http://www.jgroups.org)