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

[Dan Berindei (JIRA)]

Dan Berindei created ISPN-5584:
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             Summary: 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: 7.2.3.Final, 8.0.0.Alpha2
            Reporter: Dan Berindei
             Fix For: 8.0.0.Final


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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