I was able to create a "Composite Index", but I cannot seem to be able to create a "Mixed Index" with berkeleyjs and lucene. What I've done: - I've modified the ".properties" file

Hi All, I am trying to run SparkGraphComputer using tinkerpop 3.4.1 on Spark2.3 having Hadoop3 but getting issues, not able to connect with Spark. As per

Thank you a lot for the help, I could not figure out what the problem was! Is it normal that the requirement is so high? 5GB of space for an empty database? And can it be changed somehow with some

Hi Laura, Down the stacktrace you can note: After some googling you can conclude that your JanusGraph disk is short of 4.7 GB of space for running JanusGraph with BerkeleyjeDB. Maybe check the logs

Hi Laura, A similar question was posed recently: https://lists.lfaidata.foundation/g/janusgraph-users/message/5986 So, 1. Only for the CompositeIndex 2. In your specific example, you could use the

What am I doing wrong? I cannot get Janus to start. $ java -version openjdk version "1.8.0_252" OpenJDK Runtime Environment (build 1.8.0_252-8u252-b09-1~deb9u1-b09) OpenJDK 64-Bit Server VM (build

What are the practical implications of using Object.class as a property type, instead of the other native types (eg. String.class, Integer.class, etc.)? IIUC Object.class means that a property can

If I setup an empty graph with persistent storage, for example berkeley (thus not an in-memory graph), can I load a graphml/graphson file and have it all added to the

Hi, You can first try to write a custom VertexProgram for belief propagation with Apache TinkerPop. A custom VertexProgram supports the massive message parsing needed for belief propagation. If it

Hi Laura, JanusGraph support for loading data does not go further than the Traversal API (used in https://tinkerpop.apache.org/docs/current/reference/#addvertex-step ) and the JanusGraphManagement API

I'm moving from AWS Neptune architecture to JanusGraph in CentOS. Anyone has tried implementing Belief Propagation with JanusGraph?

Hi Laura, unfortunately, you would have to handle this in your application layer. For example, you can use different labels, properties, indexes for different subgraphs.

I've read the "Bulk Loading" chapter of the documentation several times but I still don't understand how to create a graph. Everything that I can find online is some Java or Groovy code. Given: 1. a

Hi Roy, I can confirm your observation using the standard 'bin/janusgraph.sh start' from the full janusgraph distribution. I just used the the gremlin console with: :remote connect tinkerpop.server

My understanding is that a Janus server can host multiple graphs, but they are isolated and cannot be queried together. I'd like to know if/how it's possible to split one single graph into multiple

My understanding is that a Janus server can host multiple graphs, but they are isolated and cannot be queried together. I'd like to know if/how it's possible to split one single graph into multiple

I'm seeing very slow performance when opening a new session in JanusGraph. The message I'm sending is

mvn clean -DskipTests -Drat.skip -Pjanusgraph-release -Dgpg.skip source:jar install

I think you need to qualify this a little better. For example, 100GB data is relatively small. Would easily fit in a single AWS i3.large. But what's going to be your analytical load? How many queries

Next JanusGraph release will allow tuning Cassandra's gc_grace_seconds: https://github.com/JanusGraph/janusgraph/pull/2693