[jira] [Created] (ATLAS-1527) Batch entity retrievals in DefaultMetadataService.loadEntities

["Wojciech Wojcik (JIRA)" <ji...@apache.org>]

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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