[jboss-jira] [JBoss JIRA] Created: (JGRP-931) Logical addresses: canonicalize UUIDs with IDs (shorts)

[Bela Ban (JIRA)]

Logical addresses: canonicalize UUIDs with IDs (shorts)
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                 Key: JGRP-931
                 URL: https://jira.jboss.org/jira/browse/JGRP-931
             Project: JGroups
          Issue Type: Feature Request
            Reporter: Bela Ban
            Assignee: Bela Ban
             Fix For: 2.9


Instead of using UUIDs as addresses, the cluster members should agree on shorts, e.g. 1 for A, 2 for B and so on, and use these instead of UUIDs.

This happens after a certain warmup time. E.g. the coord could assign these IDs, so they're unique.

IdAddress and UUID have to be able to do equals() or compareTo() with each other !

Advantage: 
- we send a short (2 bytes) instead of a UUID (16 bytes)
- we use an IdAddress (class with a short) instead of a UUID. This is 6 bytes less per instance
- IdAddress might be faster with equals() and hashCode() than UUID


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