[infinispan-issues] [JBoss JIRA] (ISPN-5526) Replication: The DELTA_WRITE flag should force a remote get during state transfer

[Dennis Reed (JIRA)]

Dennis Reed created ISPN-5526:
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             Summary: Replication: The DELTA_WRITE flag should force a remote get during state transfer
                 Key: ISPN-5526
                 URL: https://issues.jboss.org/browse/ISPN-5526
             Project: Infinispan
          Issue Type: Bug
    Affects Versions: 5.3.0.Final
            Reporter: Dennis Reed
            Assignee: Dan Berindei
            Priority: Critical
             Fix For: 6.0.1.Final, 7.0.0.Final


AtomicHashMap and FineGrainedAtomicHashMap, as well as custom DeltaAware implementations, use PutKeyValueCommands with the DELTA_WRITE flag to execute incremental updates. These commands need the previous value of the entry in order to work.

If a node is joining and it receives a PutKeyValueCommand with the DELTA_WRITE flag before it has received the value of the affected key, it should do a remote get to retrieve the previous value and apply the change on top of that value, just like we do for conditional commands. Not doing so leads to data loss.



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