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Some implementation options:
Apache IoTDB, REDIS, (sqlite), in-memory-table, Realm

Data Server

A component that provides VSS data on-demand or with other features (subscription to changes, or a streaming/data-flow functionality). A
Data-Server primarily serves "remote" subsystems, for example a vehicle providing data server to a client in the cloud, or a data server running on one ECU providing data to another ECU.

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