By Mark Needham, Developer Relations Engineer | December 16, 2017
Welcome to this week in Neo4j where we round up what’s been happening in the world of graph databases in the last 7 days.
Featured Community Member: Greg Walker
Greg Walker – This Week’s Featured Community Member
Greg imported the whole Blockchain into Neo4j, creating a huge database that powers the learning website. The database is updated as new blocks are created and as of May 2017 had 1,587,199,550 nodes, 2,503,359,310 relationships, and a total size of 625 GB.
He’s presented his work at the London meetup, online meetup, and this week as part of the Neo4j webinar series.
You can find the code in Greg’s bitcoin-to-neo4j GitHub repository.
On behalf of the bitcoin and Neo4j communities, thanks for all your work Greg!
Beta Release: Java Driver with Async API for Neo4j
My colleague Konstantin Lutovich released version 1.5.0-beta03 of the Neo4j Java driver which is now built on an asynchronous, Netty-based infrastructure.
1.5.0-beta03 pre-release version of the Bolt Java driver
This version of the driver uses non-blocking I/O, which means it can now be used more effectively in environments where code should block as little as possible such as Akka actors or Spring Data reactive.
On the podcast: The BloodHound Team and Ray Bernard
A couple of weeks ago Rik spoke to Ray Bernard, the TWIN4j featured community from 28th October 2017. They discussed Suprfanz, a product Ray is building to drive traffic to events via social media, the Graph Karaoke Machine, and more.
BloodHound and SuprFanz
Late last week Rik interviewed Andy Robbins and Rohan Vazarkar – creators of BloodHound, a security engineering tool that uses graph theory to reveal the hidden and often unintended relationships within an Active Directory environment. We featured BloodHound in TWIN4j in July and October so I was quite excited to listen to this one. They explain the origin story of BloodHound and go into more detail on some of its common use cases.
Poker Analytics, Cypher via gRPC, Bolt for asyncio
- David Michael Brown created asyncbolt, an implementation of the Neo4j Bolt client/server protocol for Python asyncio. It’s still in its infancy but certainly one to keep an eye on.
- My colleague Max De Marzi has written a couple of posts this week. He shows how to write a stored procedure to import data in batches and creates a a Neo4j Kernel Extension to process Cypher queries via gRPC.
- Rimma Shafikova has an excellent presentation where she shows how to use a graph database for Poker analytics.
- The second part of Sylvain Roussy‘s French Neo4j book has been released. This section shares tips on running Neo4j in production.
- Tomaz Bratanic has written a blog post in which he find communities of people in Game of Thrones that have a similar position of power in the network. Tomaz calculates various centrality scores using the Neo4j graph algorithms package and then works out the similarity of characters using APOC‘s cosine similarity function.
- Valentin Lungenstrass has written a blog post in which he shows how to Configure both MySQL and Neo4J in a Spring Boot / JHipster project
From The Knowledge Base
This week from the Neo4j Knowledge Base we have an article explaining how to deal with quotes when importing data into Neo4j. The article details common issues using LOAD CSV and neo4j-import.
We’re closing in on Christmas but there are still a couple of events organised for next week.
December 18th 2017
December 19th 2017
Tweet of the Week
My favourite tweet this week was by Jonny Flutey:
Don’t forget to RT if you liked it too.
That’s all for this week. Have a great weekend!
About the Author
Mark Needham, Developer Relations Engineer
Mark Needham is a graph advocate and developer relations engineer for Neo Technology, the company behind the Neo4j graph database.
As a developer relations engineer, Mark helps users embrace graph data and Neo4j, building sophisticated solutions to challenging data problems. Mark previously worked in engineering on the clustering team, helping to build the Causal Clustering feature released in Neo4j 3.1. Mark writes about his experiences of being a graphista on a popular blog at markhneedham.com. He tweets at @markhneedham.
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