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Simulator needed for SDC client to act as simulator for DMaaP and SDC. There is also a connection to SO which sends a notification to SDC called "Distribution complete" . SO keeps track of who has downloaded services, it uses this to keep track of what services are fully and completely deployed.
AUtomation Auuomation and recovery is not fully there yet in ONAP. In the meantime, we'll use good error and progress logging while we await better support in ONAP.
The SDC distribution component in the PF must follow all the manageability/coverage/SONAR/logging requirements that all software components must follow in the ONAP PF.