[infinispan-issues] [JBoss JIRA] (ISPN-11299) Stale values can be indexed during State Transfer

[Gustavo Fernandes (Jira)]

     [ https://issues.redhat.com/browse/ISPN-11299?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Gustavo Fernandes updated ISPN-11299:
-------------------------------------
              Status: Pull Request Sent  (was: Coding In Progress)
    Git Pull Request: https://github.com/infinispan/infinispan/pull/8072


> Stale values can be indexed during State Transfer
> -------------------------------------------------
>
>                 Key: ISPN-11299
>                 URL: https://issues.redhat.com/browse/ISPN-11299
>             Project: Infinispan
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 10.1.1.Final, 11.0.0.Alpha1
>            Reporter: Gustavo Fernandes
>            Assignee: Gustavo Fernandes
>            Priority: Major
>
> If an operation is discarded during state transfer because it was already modified locally, the QueryInterceptor still propagates it to the index, leaving the index out of sync.
> Sequence of events:
> * T1: State Transfer starts
> * T2: The EWI (EntryWrappingInterceptor) starts tracking all non-state-transfer operations
> * T3: An entry is added locally
> * T4: EWI stores the key
> * T5: The same key arrives from State Transfer
> * T6: QueryInterceptor indexes it (The QI is installed after EWI but indexing happens before storing the entry in the data container)
> * T7: The entry operation is not committed in the data container since it was tracked before as DiscardPolicy{discardStateTransfer=true, discardXSiteStateTransfer=false}
> * T8: The index and the data container differ, since the index applied the state transfer operation when the data container didn't



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