Wojciech Wojcik created ATLAS-1527:
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Summary: Batch entity retrievals in
DefaultMetadataService.loadEntities
Key: ATLAS-1527
URL: https://issues.apache.org/jira/browse/ATLAS-1527
Project: Atlas
Issue Type: Improvement
Reporter: Wojciech Wojcik
Assignee: Wojciech Wojcik
Priority: Minor
DefaultMetadataService.loadEntities() is called at the conclusion of entity
creation and update, to load the created/updated entities which are passed to
the EntityChangeListener's. The entities are being loaded one at time, because
MetadataRepository does not expose a method to retrieve multiple entities by
GUID. MetadataRepository can be enhanced to provide a getEntityDefinitions()
entrypoint, and the implementation in GraphBackedMetadataRepository can batch
the vertex retrievals using GraphHelper.getVerticesForGUIDs(). This will reduce
the graph calls to retrieve the vertices.
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