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Showing all blogs in category Neo4j

Model Matters: Graphs, Neo4j and the Future

February 25, 2013 | Neo4j

Model Matters: Graphs, Neo4j and the Future

As part of our work, we often help our customers choose the right datastore for a project. There are usually a number of considerations involved in that process, such as performance, scalability, the expected size of the data set, and the suitability of the data model to the problem at hand.

This blog post is about my experience with graph database technologies, specifically Neo4j. I would like to share some thoughts on when Neo4j is a good fit but also what challenges Neo4j faces now and in the near future.

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Deploying Neo4j Graph Database Server across AWS regions with Puppet

August 16, 2012 | Neo4j

Deploying Neo4j Graph Database Server across AWS regions with Puppet

neo4jIt’s been more than a year now since I rolled out Neo4j Graph Database Server image in Amazon EC2.

In May 2011 the version of Neo4j was 1.3 and just recently guys at Neo Technology published version 1.7.2 so I thought now is the time to revisit this exercise and make fresh AMIs available.
Last year I created Neo4j AMI manually in one region then copied it across to the remaining AWS regions. Due to the size of the AMI and the latency between regions this process was slow.

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Neo4j Super Nodes and Indexed Relationships, Part II

November 4, 2011 | Neo4j

Neo4j Super Nodes and Indexed Relationships, Part II

 Neo4j Super Nodes

In the previous post we compared the performance of fetching relationships from densely populated nodes using Neo4j native store and using lucene index.

We’ve seen that we can fetch the small subset of relationships from a super-node (containing ~1M relationships in total) directly from the Lucene index, the performance of the first run (cold-caches) is better then using the Neo store directly. The subsequent runs with caches warmed up show comparable performance, slightly in favor of direct Neo store fetching, sue to low level cache optimizations.

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Neo4j: Super-Nodes and Indexed Relationships, Part I

June 3, 2011 | Neo4j

Neo4j: Super-Nodes and Indexed Relationships, Part I

Neo4J is one of the first graph databases to appear on the global market. Being open source, in addition to its power and simplicity in supporting graph data model it represents good choice for production-ready graph database.

However, there has been one area I have struggled to get good-enough performance from Neo4j recently – super nodes.

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