Neo4j + MongoDB - SF Graph Database Meetup Group Presentation
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Gain better insight from connected data using a document database (MongoDB) alongside a graph database (Neo4j) with the new Neo4j Doc Manager project.
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- Gilt has transitioned from a monolithic architecture to a service-oriented approach using microservices like user, feature configuration, and favorite brands services.
- MongoDB is used at Gilt for user profiles, feature flag configuration, and storing favorite brands. The Java driver and Morphia/Casbah libraries help with development.
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Presented at: The 33rd International Conference on Program Comprehension (ICPC '25)
Date of Conference: April 2025
Conference Location: Ottawa, Ontario, Canada
Preprint: https://arxiv.org/abs/2501.10037
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Neo4j + MongoDB - SF Graph Database Meetup Group Presentation
- 1. Neo4j + MongoDB SF Graph Database Meetup
- 2. About Developer Relations Engineer @Neo4j [email protected] @lyonwj lyonwj.com William Lyon
- 3. Agenda • Super brief overview of MongoDB • Why MongoDB + Neo4j? • Neo4j Doc Manager • New community project • Demo!
- 4. MongoDB Document Database • Document datamodel • JSON-like documents (BSON) • Ad hoc queries • Replication / sharding • Load balancing • Capped collections • Help with job queue implementation
- 5. Why Neo4j + MongoDB? Polyglot persistence • Take advantage of features of each database technology • http://martinfowler.com/bliki/PolyglotPersistence.html • Native graph datamodel • Index free adjacency • Pattern matching queries • Document datamodel • Performant document reads / writes • Aggregation (MapReduce)
- 6. Polyglot Persistence http://www.jamesserra.com/archive/2015/07/what-is-polyglot-persistence/ Functionality Database type Shopping Cart Rapid session reads / writes Key-value store Orders / Product Catalog Frequent reads Document Customer social graph Recommendation Graph
- 7. Neo4j + MongoDB = Connected Documents What insights can we draw from connected documents? • Recommendations http://www.lyonwj.com/2015/05/28/content-recommendation-from-links-shared-on-twitter/
- 8. Neo4j Doc Manager Mongo Connector • Automatically sync documents from MongoDB to Neo4j • Convert BSON documents into graph model • Alpha version on Github - feedback welcome! https://github.com/neo4j-contrib/neo4j_doc_manager
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- 12. Neo4j Doc Manager Docker test environment • Neo4j, MongoDB, neo4j-doc-manager • Docker compose • https://github.com/JoergM/neomongo
- 13. DEMO…