Data Caterer - Test Data Management Tool

Overview

A test data management tool with automated data generation, validation and cleanup.

Generate data for databases, files, messaging systems or HTTP requests via UI, Scala/Java SDK or YAML input and executed via Spark. Run data validations after generating data to ensure it is consumed correctly. Clean up generated data or consumed data in downstream data sources to keep your environments tidy. Define alerts to get notified when failures occur and deep dive into issues from the generated report.

Full docs can be found here.

A demo of the UI found here.

Scala/Java examples found here.

Features

• Batch and/or event data generation
• Maintain relationships across any dataset
• Create custom data generation/validation scenarios
• Data validation
• Clean up generated and downstream data
• Suggest data validations
• Metadata discovery
• Detailed report of generated data and validation results
• Alerts to be notified of results
• Run as GitHub Action

Quick start

1. Mac download
2. Windows download
   1. After downloading, go to 'Downloads' folder and 'Extract All' from data-caterer-windows
   2. Double-click 'DataCaterer-1.0.0' to install Data Caterer
   3. Click on 'More info' then at the bottom, click 'Run anyway'
   4. Go to '/Program Files/DataCaterer' folder and run DataCaterer application
   5. If your browser doesn't open, go to http://localhost:9898 in your preferred browser
3. Linux download
4. Docker

   docker run -d -i -p 9898:9898 -e DEPLOY_MODE=standalone --name datacaterer datacatering/data-caterer-basic:0.10.8

   Open localhost:9898.

Run Scala/Java examples

git clone git@github.com:data-catering/data-caterer-example.git
cd data-caterer-example && ./run.sh
#check results under docker/sample/report/index.html folder

Integrations

Supported data sources

Data Caterer supports the below data sources. Additional data sources can be added on a demand basis. Check here for the full roadmap.

Data Source Type	Data Source	Support	Free
Cloud Storage	AWS S3	✅	✅
Cloud Storage	Azure Blob Storage	✅	✅
Cloud Storage	GCP Cloud Storage	✅	✅
Database	Cassandra	✅	✅
Database	MySQL	✅	✅
Database	Postgres	✅	✅
Database	Elasticsearch	❌	✅
Database	MongoDB	❌	✅
File	CSV	✅	✅
File	Delta Lake	✅	✅
File	JSON	✅	✅
File	Iceberg	✅	✅
File	ORC	✅	✅
File	Parquet	✅	✅
File	Hudi	❌	✅
HTTP	REST API	✅	❌
Messaging	Kafka	✅	❌
Messaging	Solace	✅	❌
Messaging	ActiveMQ	❌	❌
Messaging	Pulsar	❌	❌
Messaging	RabbitMQ	❌	❌
Metadata	Great Expectations	✅	❌
Metadata	Marquez	✅	❌
Metadata	OpenAPI/Swagger	✅	❌
Metadata	OpenMetadata	✅	❌
Metadata	Open Data Contract Standard (ODCS)	✅	❌
Metadata	Amundsen	❌	❌
Metadata	Datahub	❌	❌
Metadata	Data Contract CLI	❌	❌
Metadata	Solace Event Portal	❌	❌

Supported use cases

1. Insert into single data sink
2. Insert into multiple data sinks
   1. Foreign keys associated between data sources
   2. Number of records per column value
3. Set random seed at column and whole data generation level
4. Generate real-looking data (via DataFaker) and edge cases
   1. Names, addresses, places etc.
   2. Edge cases for each data type (e.g. newline character in string, maximum integer, NaN, 0)
   3. Nullability
5. Send events progressively
6. Automatically insert data into data source
   1. Read metadata from data source and insert for all sub data sources (e.g. tables)
   2. Get statistics from existing data in data source if exists
7. Track and delete generated data
8. Extract data profiling and metadata from given data sources
   1. Calculate the total number of combinations
9. Validate data
   1. Basic column validations (not null, contains, equals, greater than)
   2. Aggregate validations (group by account_id and sum amounts should be less than 100, each account should have at least one transaction)
   3. Upstream data source validations (generate data and then check same data is inserted in another data source with potential transformations)
   4. Column name validations (check count and ordering of column names)
10. Data migration validations
    1. Ensure row counts are equal
    2. Check both data sources have same values for key columns

Run Configurations

Different ways to run Data Caterer based on your use case:

Sponsorship

Data Caterer is set up under a sponsorware model where all features are available to sponsors. The core features are available here in this project for all to use/fork/update/improve etc., as the open core.

Sponsors have access to the following features:

• All data sources (see here for all data sources)
• Batch and Event generation
• Auto generation from data connections or metadata sources
• Suggest data validations
• Clean up generated and consumed data
• Run as many times as you want, not charged by usage
• Metadata discovery
• Plus more to come

Find out more details here to help with sponsorship.

This is inspired by the mkdocs-material project which follows the same model.

Contributing

View details here about how you can contribute to the project.

Additional Details

Design

Design motivations and details can be found here.

Roadmap

Can check here for full list.

UI

1. Allow the application to run with UI enabled
2. Runs as a long-lived app with UI that interacts with the existing app as a single container
3. Ability to run as UI, Spark job or both
4. Persist data in files or database (Postgres)
5. UI will show the history of data generation/validation runs, delete generated data, create new scenarios, define data connections

Distribution

Docker

gradle clean :api:shadowJar :app:shadowJar
docker build --build-arg "APP_VERSION=0.7.0" --build-arg "SPARK_VERSION=3.5.0" --no-cache -t datacatering/data-caterer:0.7.0 .
docker run -d -i -p 9898:9898 -e DEPLOY_MODE=standalone -v data-caterer-data:/opt/data-caterer --name datacaterer datacatering/data-caterer:0.7.0
#open localhost:9898

Jpackage

JPACKAGE_BUILD=true gradle clean :api:shadowJar :app:shadowJar
# Mac
jpackage "@misc/jpackage/jpackage.cfg" "@misc/jpackage/jpackage-mac.cfg"
# Windows
jpackage "@misc/jpackage/jpackage.cfg" "@misc/jpackage/jpackage-windows.cfg"
# Linux
jpackage "@misc/jpackage/jpackage.cfg" "@misc/jpackage/jpackage-linux.cfg"

Java 17 VM Options

--add-opens=java.base/java.lang=ALL-UNNAMED --add-opens=java.base/java.lang.invoke=ALL-UNNAMED --add-opens=java.base/java.lang.reflect=ALL-UNNAMED --add-opens=java.base/java.io=ALL-UNNAMED --add-opens=java.base/java.net=ALL-UNNAMED --add-opens=java.base/java.nio=ALL-UNNAMED --add-opens=java.base/java.util=ALL-UNNAMED --add-opens=java.base/java.util.concurrent=ALL-UNNAMED --add-opens=java.base/java.util.concurrent.atomic=ALL-UNNAMED --add-opens=java.base/sun.nio.ch=ALL-UNNAMED --add-opens=java.base/sun.nio.cs=ALL-UNNAMED --add-opens=java.base/sun.security.action=ALL-UNNAMED --add-opens=java.base/sun.util.calendar=ALL-UNNAMED --add-opens=java.security.jgss/sun.security.krb5=ALL-UNNAMED