Scenario 1. DataReader Joins after DataWriter Restarts (Durable Writer History)

In this scenario, a DomainParticipant joins the domain, creates a DataWriter and writes some data, then the DataWriter shuts down (gracefully or due to a fault). The DataWriter restarts and a DataReader joins the domain. Depending on whether the DataWriter is configured with durable history, the late-joining DataReader may or may not receive the data published already by the DataWriter before it restarted. This is illustrated in Figure 1. For more information, see Durable Writer History

Figure 1 Durable Writer History

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