[jboss-jira] [JBoss JIRA] (WFLY-9344) Let Infinispan manage eviction for distributed web sessions and @Stateful EJBs

[Jason Greene (JIRA)]

     [ https://issues.jboss.org/browse/WFLY-9344?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jason Greene updated WFLY-9344:
-------------------------------
    Fix Version/s: 13.0.0.Beta1
                       (was: 12.0.0.Final)


> Let Infinispan manage eviction for distributed web sessions and @Stateful EJBs
> ------------------------------------------------------------------------------
>
>                 Key: WFLY-9344
>                 URL: https://issues.jboss.org/browse/WFLY-9344
>             Project: WildFly
>          Issue Type: Enhancement
>          Components: Clustering
>    Affects Versions: 11.0.0.CR1
>            Reporter: Paul Ferraro
>            Assignee: Paul Ferraro
>             Fix For: 13.0.0.Beta1
>
>
> With Infinispan's transition to Caffeine to implement its data container, WF should finally be able to offload eviction to Infinispan, by configuring caffeine to use a specific Weigher that returns 0 for non-primary session entries, where max-active-sessions is configured as the maximumWeight.  From an Infinispan configuration perspective, this corresponds to a custom EntrySizeCalculator that returns 0 for non-primary session entries, and a maxSize equal to the max-active-sessions. The remaining entries would rely on cascading eviction (i.e. manually evicting from a via passivation callback).
> As of Infinispan 9.1, the requisite DataContainer configuration attributes are deprecated - thus we need to lobby to expose the mechanisms for overriding the entry size calculator to be able to ensure this solution will be supported in the future.



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