[infinispan-issues] [JBoss JIRA] (ISPN-5584) Support fine-grained write skew check for FineGrainedAtomicMap entries

[Tristan Tarrant (JIRA)]

     [ https://issues.jboss.org/browse/ISPN-5584?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tristan Tarrant updated ISPN-5584:
----------------------------------
    Fix Version/s: 9.0.0.Alpha3
                       (was: 9.0.0.Alpha2)


> Support fine-grained write skew check for FineGrainedAtomicMap entries
> ----------------------------------------------------------------------
>
>                 Key: ISPN-5584
>                 URL: https://issues.jboss.org/browse/ISPN-5584
>             Project: Infinispan
>          Issue Type: Feature Request
>          Components: Core
>    Affects Versions: 8.0.0.Alpha2, 7.2.3.Final
>            Reporter: Dan Berindei
>             Fix For: 9.0.0.Alpha3
>
>
> FineGrainedAtomicMap doesn't currently work with write skew check enabled. 
> I was able to make it work by adding a special case for DeltaAwareCacheEntry in WriteSkewHelper, however the map has a single version, so the write skew check fails if any of the sub-keys were modified in parallel. With pessimistic locking, fine-grained maps allow the user to modify different sub-keys concurrently, we should allow the same with optimistic locking.



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