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Posted to dev@atlas.apache.org by "Ashutosh Mestry (Jira)" <ji...@apache.org> on 2020/04/07 19:03:00 UTC

[jira] [Created] (ATLAS-3723) GraphSON Migrator: Avoid invoking AtlasPatchService Post-migration

Ashutosh Mestry created ATLAS-3723:
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             Summary: GraphSON Migrator: Avoid invoking AtlasPatchService Post-migration
                 Key: ATLAS-3723
                 URL: https://issues.apache.org/jira/browse/ATLAS-3723
             Project: Atlas
          Issue Type: Improvement
          Components:  atlas-core
            Reporter: Ashutosh Mestry
            Assignee: Ashutosh Mestry


*Background*

GraphSON migrator migrates data from pre-1.0 Atlas versions that use TitanDB to the new versions that use JanusGraph.

This implementation uses low-level GraphSON for data ingestion. The implementation has logic built-in such that the vertices and edges are in the correct format as the ones represented by _AtlasEntity_.

The implementation is little out of date where it does not account for:
 * New unique attribute property. 
 * Classification vertex.

To circumvent this, AtlasPatchService needs to be run post migration so that the vertices are updated with the changes above.

*Solution*

The ingestion logic could update the incoming JSON with the 2 changes above thereby eliminating need for running this service.

 



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