This page is used to collect frequently asked questions related to SAP Data Hub, developer edition. We will update it regularly.
You find an overview in this blog post. And you can get started by looking at this tutorial.
Yes, you can run the SAP Data Hub, developer edition with Docker Toolbox (although we recommend to use Docker for Windows respectively Docker for Mac, since Docker Toolbox is considered a legacy solution).
If this error occurs while storing data in SAP Vora (during turorial Store sensor data in SAP Vora), check that you have correctly maintained the connection between the Kafka Consumer operator and the ToString Converter operator.
You need to connect the message port of the Kafka Consumer operator to the ininterface port of the ToString Converter operator.
You find the logs related to SAP Data Hub (and SAP Vora) inside the Docker container in the directory /var/log/vora.
You have set up SAP Data Hub, developer edition on a host different from your local computer or inside a VM (via Docker Toolbox). You cannot access SAP Data Hub.
You are running the Docker container for SAP Data Hub, developer edition with docker run -ti --publish 127.0.0.1:8090:8090 --publish 127.0.0.1:8998:8998 --publish 127.0.0.1:9225:9225 --publish 127.0.0.1:50070:50070 --name datahub --hostname datahub --network dev-net datahub run --agree-to-sap-license --hdfs --livy as per this tutorial.
When using this tutorial to set up SAP Data Hub, developer edition you bind the container ports to the loopback IP address (aka “localhost") to restrict access. Hence you can only access it on the host it is set up on.
You try to use SAP Data Hub, developer edition in conjunction with Docker for Windows and get an error "No matching manifest for unknown...". Please ensure that you use Linux (and not Windows) containers.
Where do I find the SAP Data Hub, developer edition?
You find an overview in this blog post. And you can get started by looking at this tutorial.
Can the developer edition be used with Docker Toolbox?
Yes, you can run the SAP Data Hub, developer edition with Docker Toolbox (although we recommend to use Docker for Windows respectively Docker for Mac, since Docker Toolbox is considered a legacy solution).
- Ensure that the Linux VM used to run Docker is sufficiently sized (at least 2 cores, recommended 4 cores, 8 GB of RAM). You can adjust the sizing via Virtualbox.
- Publishing the services running inside the Docker container to 127.0.0.1 (localhost) does not work. Instead you can publish and access them to the docker-machine ip.
ERROR: could not handle api call, failure reason : execution of scheduler plan failed
If this error occurs while storing data in SAP Vora (during turorial Store sensor data in SAP Vora), check that you have correctly maintained the connection between the Kafka Consumer operator and the ToString Converter operator.
You need to connect the message port of the Kafka Consumer operator to the ininterface port of the ToString Converter operator.
Where do I find logs inside the Docker container?
You find the logs related to SAP Data Hub (and SAP Vora) inside the Docker container in the directory /var/log/vora.
How can I access SAP Data Hub, developer edition from "other" hosts?
You have set up SAP Data Hub, developer edition on a host different from your local computer or inside a VM (via Docker Toolbox). You cannot access SAP Data Hub.
You are running the Docker container for SAP Data Hub, developer edition with docker run -ti --publish 127.0.0.1:8090:8090 --publish 127.0.0.1:8998:8998 --publish 127.0.0.1:9225:9225 --publish 127.0.0.1:50070:50070 --name datahub --hostname datahub --network dev-net datahub run --agree-to-sap-license --hdfs --livy as per this tutorial.
When using this tutorial to set up SAP Data Hub, developer edition you bind the container ports to the loopback IP address (aka “localhost") to restrict access. Hence you can only access it on the host it is set up on.
- For accessing SAP Data Hub, developer edition in conjunction with Docker Toolbox, look at “Can the developer edition be used with Docker Toolbox?”.
- For accessing SAP Data Hub, developer edition on “another” host (different from your local computer), you can do without binding the container ports to an IP address. For details refer to the README file which you have downloaded with the developer edition. Keep in mind: SAP Data Hub, developer edition is not intended to provide a multi-user environment.
ERROR: No matching manifest for unknown...
You try to use SAP Data Hub, developer edition in conjunction with Docker for Windows and get an error "No matching manifest for unknown...". Please ensure that you use Linux (and not Windows) containers.
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