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I have a distributed USM appliance with an additional remote sensor. Which component should be upgraded first?

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  • luis.morales,

    The upgrade process should always be parent, then child. 

    For instance, in a logger/server/remote sensors setup, the order would be logger, then server, then sensors.

    The reason for this is that an update may add service changes, or data collection additions (a good example is adding a field to a database). Since the events are being sent to the parent for processing, the parent is upgraded first to make sure that the updated functionality (new service requirements, new DB fields, new datasources) exists in order to prevent errors in processing the received data.
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