[infinispan-issues] [JBoss JIRA] (ISPN-3737) L1 requestor registered after value read

[William Burns (JIRA)]

    [ https://issues.jboss.org/browse/ISPN-3737?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12927204#comment-12927204 ] 

William Burns commented on ISPN-3737:
-------------------------------------

Also this only affects RepeatableRead since Read Committed would return the correct value and thus would have cached the proper value.  I will have to add in some Repeatable Read unit tests.
                
> L1 requestor registered after value read
> ----------------------------------------
>
>                 Key: ISPN-3737
>                 URL: https://issues.jboss.org/browse/ISPN-3737
>             Project: Infinispan
>          Issue Type: Bug
>          Components: Distributed Cache
>    Affects Versions: 6.0.0.Final
>            Reporter: Radim Vansa
>            Assignee: William Burns
>            Priority: Critical
>              Labels: 620
>
> As the L1 requestor is registered only after the value is retrieved from data container, the (transactional) update of the value may not invalide the entry after write and the cache gets inconsistent.
> Consider this interleaving of operations (G=get request from other node, C=commit)
> R: read value -> old value
> C: update old -> new
> C: notify requestors for key
> R: add requestor for key

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