[infinispan-issues] [JBoss JIRA] (ISPN-7623) Delta write during topology change broken with triangle

[Radim Vansa (JIRA)]

Radim Vansa created ISPN-7623:
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             Summary: Delta write during topology change broken with triangle
                 Key: ISPN-7623
                 URL: https://issues.jboss.org/browse/ISPN-7623
             Project: Infinispan
          Issue Type: Bug
          Components: Core
            Reporter: Radim Vansa


Applying delta write on backup requires old value to be retrieved if it's not present (e.g. when a node has just become an owner). With old replication, the entry is not committed on primary owner until backup confirms the write, and therefore the backup can retrieve the old value.
With triangle, primary owner commits the value ~concurrently to sending the command to backup owner. Therefore, if backup asks for the value, it likely gets the updated value instead of the original.



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