[infinispan-issues] [JBoss JIRA] (ISPN-3677) With optimistic TX, conditional commands may wrongly succeed

[Radim Vansa (JIRA)]

     [ https://issues.jboss.org/browse/ISPN-3677?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Radim Vansa closed ISPN-3677.
-----------------------------

    Resolution: Duplicate Issue


Duplicate of ISPN-3655
                
> With optimistic TX, conditional commands may wrongly succeed
> ------------------------------------------------------------
>
>                 Key: ISPN-3677
>                 URL: https://issues.jboss.org/browse/ISPN-3677
>             Project: Infinispan
>          Issue Type: Bug
>          Components: Core API
>    Affects Versions: 6.0.0.CR1
>            Reporter: Radim Vansa
>            Assignee: Mircea Markus
>            Priority: Critical
>
> Situation with optimistic TX, originator = entry's primary owner:
> 1. The conditional check suceeds when the command is executed
> 2. In TxDistributionInterceptor, ignorePreviousValue is set to true
> 3. The command is then enlisted in the modifications list with the ignorePreviousValue set to true
> 4. During the prepare/commit phase the command ignores the condition
> Result:
> Two commands, replace(key, A, B), replace(key, A, C) may both overwrite the entry (and the one committed later wins, actually overwriting B instead of A).

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