[infinispan-issues] [JBoss JIRA] (ISPN-3500) Conditional operation can generate inconsistencies in transactional mode

[Galder Zamarreño (JIRA)]

     [ https://issues.jboss.org/browse/ISPN-3500?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Galder Zamarreño updated ISPN-3500:
-----------------------------------

        Status: Resolved  (was: Pull Request Sent)
    Resolution: Done

    
> Conditional operation can generate inconsistencies in transactional mode
> ------------------------------------------------------------------------
>
>                 Key: ISPN-3500
>                 URL: https://issues.jboss.org/browse/ISPN-3500
>             Project: Infinispan
>          Issue Type: Bug
>    Affects Versions: 6.0.0.Alpha4
>            Reporter: Pedro Ruivo
>            Assignee: Pedro Ruivo
>             Fix For: 6.0.0.Beta1
>
>
> conditional operation can be applied in the backup nodes. consider the following scenario:
> {code}
> k=v1
> tx1: write on key k value v2
> tx1: prepare and sends the commit... primary owner already applied v2
> tx2: [replace(k, v1, v3)] starts and reads from primary owner v2. ignoreReturnValue is false because the operation has failed to change k.
> tx2: sends the prepare. in the backup owner, if perform oldValue.equals(value). however, the oldValue == v1 and value == v1.
> {code}
> the operation changed the key in the backup owner creating inconsistency.

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