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After making the SAP Data Hub 1.0 SPS 03, trial edition work for me I leveraged this environment to send my Raspberry Pi sensor data to SAP Vora via Apache Kafka managed by the SAP Data Hub. However, when trying to profile my Raspberry Pi sensor data like profiling my big data with the SAP Data Hub, I receive this error message:

Checking my SAP Data Hub Overview, I realize that there does not seem to be a HDFS connection:

Luckily the required WebHDFS settings are easily augmented, given that I have already connected my SAP Data Hub to SAP Vora and Hadoop:

With this profiling my Vora connection works like a charm:

With the expected results:

Of course, this is a significant architectural change with SAP Data Hub 1.3.0, since this scenario does not require a local SAP Data Hub Adapter any longer.

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  1. Former Member

    hi Frank , what i understand from SAP DATA HUB Architecture , it has 2 components one is HANA  XSA Application which is used for modelling in DATA HUB and other component is SAP VORA, which is sued for persisting the data from source system to Data Hub.The VORA connection and HDFS connection you have shown here in this article, is that internal to SAP DATA HUB (part of architecture) or is that remote data sources?

    It is not clear how and where you used KAFKA?

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    1. Frank Schuler Post author

      Hello Aniruddha,

      The SAP Data Hub comprises of two mandatory and one optional component:

      Architectural changes with SAP Data Hub 1.3.0

      Therefore, I would consider both the SAP Vora as well as the Hadoop connection as part of the SAP Data Hub architecture.

      Concerning Kafka, I use this to subscribe to sensor data for visualization and profiling:

      Send your Raspberry Pi sensor data to SAP Vora via Apache Kafka managed by the SAP Data Hub

      Best regards

      Frank

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