[infinispan-issues] [JBoss JIRA] (ISPN-6688) PreferAvailabilityStrategy: Improve selection of segment owners after merge

[Tristan Tarrant (JIRA)]

     [ https://issues.jboss.org/browse/ISPN-6688?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tristan Tarrant updated ISPN-6688:
----------------------------------
    Fix Version/s: 9.0.0.CR2
                       (was: 9.0.0.CR1)


> PreferAvailabilityStrategy: Improve selection of segment owners after merge
> ---------------------------------------------------------------------------
>
>                 Key: ISPN-6688
>                 URL: https://issues.jboss.org/browse/ISPN-6688
>             Project: Infinispan
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 8.2.2.Final
>            Reporter: Dan Berindei
>            Assignee: Dan Berindei
>             Fix For: 9.0.0.CR2, 9.0.0.Final
>
>
> {{PreferAvailabilityStrategy}} picks a winning CH after merge, but that CH is very likely to be the wrong one. We should improve our odds at preserving cache data by mixing CHs, and keeping from each node's response only the information about the segments it owns itself.
> The downside is that {{PreferAvailabilityStrategy}} becomes tightly coupled with {{DefaultConsistentHash}}/{{ReplicatedConsistentHash}}, and users that want to add custom {{ConsistentHash}} implementations will have to re-implement {{PreferAvailabilityStrategy}}.



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