CODEWITHSUNDEEP
javahadoopneo4j
Salma Hakim
Salma Hakim

Reputation: 105

connect hadoop to neo4j

I want to import a GML file (Graphml file) from hadoop to neo4j , for that I need to do connection between hadoop and neo4j, I checked the neo4j site but I didn't find anything : https://neo4j.com/developer/apache-hadoop/ this is what they say for the connection between hadoop and neo4j :

In the past there were some approaches that used Hadoop to quickly generate `Neo4j datastores directly. While this approach is performant, it is also tightly coupled to the store-format of a certain Neo4j version as it has to duplicate the functionality of writing to split-up store-files. With the parallel neo4j-import tool and APIs introduced in Neo4j 2.2, such a solution is no longer needed. The import facilities scale across a large number of CPUs to maximize import performance.

Can anyone explain me what does that mean ? thank you

Upvotes: 0

Views: 305

Answers (1)

William Lyon
William Lyon

Reputation: 8546

Maybe I'm not understanding exactly what you're trying to accomplish, but if you have the GraphML file you don't need a connection to hadoop, just copy the file to the Neo4j instance or serve it over the web.

GraphML import is available in Neo4j through the use of apoc.import.graphml procedure. For example:

CALL apoc.import.graphml("graph.gml", {batchSize: 10000, readLabels: true, storeNodeIds: false, defaultRelationshipType:"RELATED"};

Upvotes: 1

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