[jira] [Created] (NIFI-4971) ReportLineageToAtlas 'complete path' strategy can miss one-time lineages

["Koji Kawamura (JIRA)" <ji...@apache.org>]

Koji Kawamura created NIFI-4971:
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             Summary: ReportLineageToAtlas 'complete path' strategy can miss one-time lineages
                 Key: NIFI-4971
                 URL: https://issues.apache.org/jira/browse/NIFI-4971
             Project: Apache NiFi
          Issue Type: Bug
          Components: Extensions
    Affects Versions: 1.5.0
            Reporter: Koji Kawamura
            Assignee: Koji Kawamura


For the simplest example, with GenerateFlowFile (GFF) -> PutFlowFile (PFF), where GFF generates FlowFiles with unique ids, and PFF creates local files, GFF ran 2 times, then following provenance events will be generated:

 # GFF CREATE FF1
 # PFF SEND file1
 # PFF DROP FF1
 # GFF CREATE FF2
 # PFF SEND file2
 # PFF DROP FF2

From above provenance events, following entities and lineages should be created in Atlas, labels in brackets are Atlas type names:

{code}
GenerateFlowFile (nifi_data)
 -> GFF, PFF (nifi_flow_path) -> file1 (fs_path)
 -> GFF, PFF (nifi_flow_path) -> file2 (fs_path)
{code}

Entities shown in above graph are created. However, those 'nifi_flow_path' entities do not have inputs/outputs referencing 'nifi_data' or 'fs_path', and lineage can not be seen in Atlas UI.



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