[jboss-jira] [JBoss JIRA] Resolved: (JGRP-919) UUID.cache: timed purging of old mappings

[Bela Ban (JIRA)]

     [ https://jira.jboss.org/jira/browse/JGRP-919?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Bela Ban resolved JGRP-919.
---------------------------

    Resolution: Done


> UUID.cache: timed purging of old mappings
> -----------------------------------------
>
>                 Key: JGRP-919
>                 URL: https://jira.jboss.org/jira/browse/JGRP-919
>             Project: JGroups
>          Issue Type: Feature Request
>            Reporter: Bela Ban
>            Assignee: Bela Ban
>            Priority: Minor
>             Fix For: 2.8
>
>
> When a channel is closed, the logical name / UUID mapping is removed by calling UUID.remove(). However, if we have a View V which contains A and B, but B was closed, then V will get printed with A's logical name but B's UUID !
> This is not incorrect, but doesn't look nice.
> A delayed purging of B's logical name/UUID mapping would allows us to still print the logical name of B instead of its UUID, even though B was closed.
> SOLUTION(S):
> - Delay every remove(): place the to be removed element into a queue, from which we purge an element E only if E is older than X milliseconds.
> - Alternative: remove only at JVM termination, or when cache is more than X elements big

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