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

[Radim Vansa (JIRA)]

Radim Vansa created ISPN-3677:
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             Summary: 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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