Hi, JanusGraph users. I try a simple query from TinkerPop docs with my JanusGraph installation, but it does not work as expected. How is it possible: gremlin>

Oh, I recall that we once tried to debug the same issue with JanusGraph-Hbase, had clear supernodes in the graph. No attempts on repartitioning, including analyzing code of

I'm trying to link one vertex (let's say Activity) with two others (person), I expect to have two edges in result, the request below creates only one. gremlin>

The code explains behavior. the api sets start time to null instead of Instant.now() hence different behaviour. public LogProcessorBuilder setStartTimeNow() { this.startTime = null; return this; }

Hi Laura, The JanusGraph storage backends can store many isolated graphs (see e.g. the storage.cql.keyspace configuration property). However, it is not possible to have edges between vertices from

Thanks Marc

Thank you, looking forward to have profile() with such information added. Cheers, CM

Maybe I'm completely wrong, but would I be right to say that "labels" are the equivalent of Java classes? Like, one label represents a Java class and graph properties represent a class properties? So,

Hi Christopher, I don't have any workaround in mind except testing and comparing query latencies. I have created https://github.com/JanusGraph/janusgraph/issues/2283 which hopefully can be addressed

Thank you for your further comments. I'm still a bit confused though. Janus advertises itself as a database for huge graphs. But I'm asking myself if it means huge "homogeneous" graphs (ie. a simple

Hi Laura, Things are a bit different than you ask: a vertex has a single label only a property key has a single datatype only, but it can be Object.class, see

Hi Laura, Many people use CSV for data and JSON for schemas (in other graph databases too). Not sure what will be the most "standard" or "efficient" approach, but CSV/JSON seems to be most common.

All the examples that I see in the Janus documentation seem to use Groovy. Instructions such as JanusGraphFactory.open(), graph.openManagement(), mgmt.makeEdgeLabel() etc. Is there any human-friendly

Thank you Marc, I think it does indeed! If I understand correctly, I can use labels to "namespace" my nodes, or in other words as a way to identify subgraphs. If I have a node with 2 labels instead,

Hi Laura, Good that you pay close attention to understanding indices in JanusGraph because they are essential to proper use. Does the following section of the ref docs answers your

Thank you Boxuan Li, It is obvious that your are an expert, is any other way apart of isFitted=true to know that index is used or not? (It may be even debugging JanusGraph server or Cassandra) We

I'm new to Janus and LPGs. I have a question after reading the Janus documentation. As far as I understand, edges labels as well as properties (for both nodes and edges) are indexed globally. What

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Hi Christopher, isFitted = true basically means no in-memory filtering is needed. If you see isFitted = false, it does not necessarily mean vertex-centric indexes are not used. It could be the case

Pawan, I was able to make your code work. the problem is "setStartTimeNow()" Instead use setStartTime(Instant.now()) and test. It works. I am yet to explore difference between two api. make sure to