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  • Data Engineering Integration H2L
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  1. Abstract
  2. Supported Versions
  3. Metadata Access Service Quick Reference

Metadata Access Service Quick Reference

Metadata Access Service Quick Reference

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Metadata Access Service Process

Metadata Access Service Process

The Metadata Access Service receives requests from the Developer tool at design time to fetch an object metadata from a Hadoop cluster. The Metadata Access Service access the Hadoop cluster and provides the object metadata to the Developer tool.
The Metadata Access Service uses HTTP or HTTPS to communicate with Hadoop clusters and the Developer tool that sends metadata access requests. The following image shows how the Metadata Access Service components complete job requests:
  1. When importing a data object, the Developer tool sends a request to the Metadata Access Service along with the reference to the connection object.
  2. The Metadata Access Service accesses the cluster configuration defined in the connection object.
  3. The Metadata Access Service uses the Hadoop details from the cluster configuration and extracts the object metadata from the Hadoop cluster.
  4. The Metadata Access Service returns the metadata to the Developer tool.
  5. When you save the data object, the information is saved in the Model repository.
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