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datahub/contrib/metadata-ingestion/haskell/README.md
John Plaisted 6ece2d6469
Start adding java ETL examples, starting with kafka etl. (#1805) 
Start adding java ETL examples, starting with kafka etl.

We've had a few requests to start providing Java examples rather than Python due to type safety.

I've also started to add these to metadata-ingestion-examples to make it clearer these are *examples*. They can be used directly or as a basis for other things.

As we port to Java we'll move examples to contrib.
2020-09-11 13:04:21 -07:00

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datahub Ingestion Tool

Introduction

some tool to ingestion [jdbc-database-schema] and [etl-lineage] metadata.

i split the ingestion procedure to two part: [datahub-producer] and different [metadata-generator]

Roadmap

  • datahub-producer load json avro data.
  • add lineage-hive generator
  • add dataset-jdbc generator[include [mysql, mssql, postgresql, oracle] driver]
  • add dataset-hive generator
  • *> add lineage-oracle generator
  • enhance lineage-jdbc generator to lazy iterator mode.
  • enchance avro parser to show error information

Quickstart

  1. install nix and channel
  sudo install -d -m755 -o $(id -u) -g $(id -g) /nix
  curl https://nixos.org/nix/install | sh
  
  nix-channel --add https://nixos.org/channels/nixos-20.03 nixpkgs
  nix-channel --update nixpkgs
  1. [optional] you can download specified dependency in advanced, or it will automatically download at run time.
  nix-shell bin/[datahub-producer].hs.nix
  nix-shell bin/[datahub-producer].py.nix
  ...
  1. load json data to datahub
    cat sample/mce.json.dat | bin/datahub-producer.hs config
  1. parse hive sql to datahub
    ls sample/hive_*.sql | bin/lineage_hive_generator.hs | bin/datahub-producer.hs config
  1. load jdbc schema(mysql, mssql, postgresql, oracle) to datahub
    bin/dataset-jdbc-generator.hs | bin/datahub-producer.hs config
  1. load hive schema to datahub
    bin/dataset-hive-generator.py | bin/datahub-producer.hs config

Reference