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

[Bela Ban (JIRA)]

     [ https://jira.jboss.org/jira/browse/JGRP-931?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Bela Ban updated JGRP-931:
--------------------------

    Fix Version/s: 2.11
                       (was: 3.x)


> Logical addresses: canonicalize UUIDs with IDs (shorts)
> -------------------------------------------------------
>
>                 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: 2.11
>
>
> 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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