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Questions tagged [janusgraph]

JanusGraph is a scalable graph database optimized for storing and querying graphs containing hundreds of billions of vertices and edges distributed across a multi-machine cluster. JanusGraph is a transactional database that can support thousands of concurrent users executing complex graph traversals in real time. When posting questions, please include environment details, such as the storage and indexing backends used.

JanusGraph is a scalable graph database optimized for storing and querying graphs containing hundreds of billions of vertices and edges distributed across a multi-machine cluster. JanusGraph is a transactional database that can support thousands of concurrent users executing complex graph traversals in real time.

When posting questions, please include environment details, such as the storage and indexing backends used.

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How to traverse graph created using ConfiguredPlanFactory in JanusGraph?

I have set up a Janusgraph Cluster with Cassandra + ES. The cluster has been set up to support ConfiguredGraphFactory. Also, I am connecting the gremlin cluster remotely. I have set up a client and am able to create a graph using…
AKG
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Nodes and edges overlap each other

I'm trying to visualize a graph (using JanusGraph) in Gephi, but all nodes and edges overlap each other in the "Preview" tab. Using Gremlin I'm connecting to the db and create two vertices with one edge: gremlin> graph =…
Mike Hladkivskyi
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Recursively get all the vertices emerging from a group of vertices

I have a vertex label "group" and a group can have multiple "categories". For example, a group named "food" can have multiple categories like "Seafood, Chinese, Indian" which are connected by an edge labelled "label1". Now, a category can have…
Vipul Sharma
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Janus Graph - gremlin-server - Java Client - Cannot find class file for apache.commons.configuration

I am trying to access the janus graph on Cassandra through Java Client, but not able to use the properties file through the Client class. public static void main(){ Cluster cluster = Cluster.open("remote.yaml"); // Cluster cluster2 =…
swarncar
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Gremlin: how can I return vertex and their associated vertex?

I Need to return some groups and people in that group, like this: Group A -----Person A -----Person B -----Person C Group B -----Person D -----Person E -----Person F How can I do that with gremlin. They are connected to group with a edge.
Augusto Will
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janusgraph - store a password encrypted using bcrypt

I am using janusgraph with cassandra as storage backend. I am using a node package called as bcrypt to encrypt a password before saving it. The data type for that property in janusgraph is String. This is the password hash string which got generated…
Vipul Sharma
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Elasticsearch error with JanusGraph

It looks like I am hitting a problem with elasticsearch even though I do not have this configured anywhere :( Application code (Java): public static void main(String args[]) { JanusGraph g =…
BigBug
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How to "join" vertices and the count of their edges as a 'property' of those vertices in JanusGraph or Gremlin?

I need to return the 'posts' vertices, but those posts have some 'like' edges, how can I return the count of 'likes' edges for that posts as a property of that edge, like this: { title: 'lorem ipsum.....', content: 'yadayadayada', likes: 6 <---- }
Augusto Will
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How to integrate janusgraph with an existing hadoop cluster

I'm New to Big data and currently struggling to integrate janusgraph to an existing hadoop cluster. Can you please tell me how to do this or please provide a link to a resource.
D.Rana
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Gremlin - gremlin queries in tinkerpop documentation not working

I am new to graph databases, gremlin and tinkerpop. We are using them in an application we are building and the setup has been done by some other team. Now when I try to run the gremlin queries provided in the tinkerpop documentation, many of them…
Vipul Sharma
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Gremlin - select a vertex, create new vertices and edges in single query

I have a user vertex already created. g.V().has('user','username','vipul').as('user') I want to create a new 'group' vertex with some properties and also a new 'options' vertex with some other properties.…
Vipul Sharma
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how can we get 2 vertexes path?

Now I have the query below and I would like to get all the edge and It is interesting why we got 2 same path and I want to get the path detail. How can I implement? Vertex fromNode = g.V().has('name', 'alice').next();Vertex toNode =…
Jeff
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JanusGraph DynamoDB backend exceptions when committing data to the database

Hello: I am using JanusGraph with DynamoDB example from https://github.com/awslabs/dynamodb-janusgraph-storage-backend Also, I am connecting to JanusGraph using Spark - Scala - Gremlin Scala framework. Everything thing works when I used Cassandra…
Ashish Markanday
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Using janusgraph's withRemote traversal(gremlin language) seems having trouble with Index

I'm using Elastic Search as index server. And I have an index with property "poiId", but when I added a new vertex with that property and then search for it using the same remote traversal, it found nothing. So it continues adding new vertexes.…
Gao
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Janusgraph error while tring to connect with backend

I'm trying to run ./bin/gremlin-server.sh ./conf/gremlin-server/gremlin-server.yaml I can see cassandra in process list but the client wont connect, i got this error all the time: 263 [main] INFO org.apache.tinkerpop.gremlin.server.GremlinServer…
Augusto Will
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