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Head's Up! Site maintenance this Wednesday, February 1. Disruptions expected as we migrate the forums.

Forum Posts

About the Integrations category

There are a lot of systems that Neo4j integrates with, from other databases, data processing solutions like Spark, data visualization tools and libraries and ETL and reporting tools. Please select a descriptive label so we can direct your question to...

yolande by Community Team
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Running neo4j:latest

If I try and set up a docker container with neo4j:3.5 and connect from another machine it works fine. If I do the same but use neo4j:latest or neo4j:4.0 I get the following error: "SessionExpired: WebSocket connection failure. Due to security constra...

Bulk import into Neo4j from Spark

Hi Michael, I'm currently using Spark as the tool to process raw data, getting it into a format that can be imported into Neo4j. I'm aware of the neo4j-admin import tool but wondering that Spark's the better option. I ran into a LockClient deadlock s...

OSM import stalls out after Nodes are complete

I was able to get the sample data to import as shown in the OSM github. However, when attempting to import a larger data set (North America ~15GB) using the following: java -Xms4096m -Xmx4096m -cp "target/osm-0.2.2-neo4j-3.5.1.jar:tndency/*" org.ne...

Syntax Exception invoking APOC method

Using 3.5 and the neosemantics library, I am mystified why match (c:Resource {`http://www.w3.org/2000/01/rdf-schema#label`: "MyClass"}) call semantics.inference.nodesInCategory(c, {inCatRel:'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', subCatRe...

Setting of NEO4J_AUTH does not work in

Hi, I want to run the neo4j container with initialized data on Amazon ECS. So I extend the neo4j docker image, setup and run the data import and then run the original entry point. The problem is that the neo4j user keeps its default password (neo4j) ...

Pentaho with neo4j

Continuing to make some progress with Neo4j and Pentaho (I think I see a how-to article forming...) I've got several queries working, but I have trouble if I have (2) Neo4j Cypher steps within a transform. It throws a strange error: Could not gencsv ...

pdrangeid by Graph Voyager
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Integrating Neo4j with MongoDB and ElasticSearch

Hi, I'm working on a open source project named Researchkernel.org which provides recommendations and personalised search to the user. I'm using Neo4j for my recommendation systems and [Neo4j+Elasticsearch] for search engine. For integrating mongo an...

Resolved! How to add Property to Relation Type from RDF Triples

As we all know, OWL could not give any DataProperty to one ObjectProperty because it's itself a property. So, if I want to add some properties to relation in Neo4J from RDF Triples, there is a trick. I define a relation as a Class in OWL and some Dat...