All Questions
Tagged with janusgraph titan
29
questions
1
vote
1
answer
23
views
Is JanusGraph virtual partition same as Cassandra partition?
I'm trying to design custom graph partitioning for my use case.
As per the JanusGraph documentation, the number of partition can be configured.
The configuration option max-partitions controls how ...
- 125
1
vote
0
answers
31
views
Cannot update edgeTTL in JanusGraph
I'm using JanusGraph-1.0.0 with Cassandra-4.1.3. By using JanusGraphManagement, I am able to set edge TTL. However, I cannot update the edge TTL later.
I have created an edge label and with mgmt....
- 125
3
votes
0
answers
454
views
No signature of method: org.janusgraph.graphdb.database.management.JanusGraphIndexWrapper.buildCompositeIndex()
I am trying to create a database schema in janusgraph(latest version) which is using cassandra(version 3). But am stuck with the following error
No signature of method: org.janusgraph.graphdb....
- 679
-1
votes
2
answers
2k
views
Any graphical interface of JanusGraph Gremlin Query [closed]
Currently, I'm executing my gremlin query via apache-tinkerpop-gremlin-console - this is command interface. I'm looking for some graphical interface where I can pass all my attributes and relation - ...
- 497
1
vote
0
answers
245
views
Graph with 100+ edges per vertex
I'm doing some research on graph databases to see if they would fit my use case. Right now I'm looking at Janusgraph, but have also looked at ArangoDB and Neo4J a little.
I have a tree of nodes, but ...
- 5,570
2
votes
1
answer
1k
views
JanusGraph query failure due to Cassandra backend tombstone exception
I have raised a GitHub issue regarding this as well. Pasting the same below.
JanusGraph version - janusgraph-0.3.1
Cassandra - cassandra:3.11.4
When we run JanusGraph with the Cassandra backend, ...
- 766
0
votes
1
answer
361
views
When are gremlin sessions better?
I understand that sessionless operations are the preferred method of using gremlin. I'm wondering when is the sessioned approach better?
So I might be doing something like...
graph.addVertex("foo")...
- 15
1
vote
1
answer
489
views
JanusGraph drop throws OperationTimedOutException
We observe following error consistently in CentOS while trying to drop JanusGraph graph. We are using Janusgraph version 0.2.0 and 3 node Cassandra cluster as backend. However the same command works ...
- 345
3
votes
2
answers
621
views
Is it ok to use graphdb on a large dense graph
We want to present our data in a graph and thought about using one of graphdbs. During our vendor investigation process, one of the experts suggested that using graphdb on dense graph won't be ...
- 425
2
votes
0
answers
434
views
How to export Janusgraph/titan data result to a CSV file in hdfs location?
Is there any way we can save result of janusgraph/titan Graph Data as CSV format instead of hbase/cassandra table?
i couldn't find any proper document to save CSV file format.
- 31
1
vote
2
answers
889
views
Where can I find performance report of Titan graph database, or its successor Janusgraph? [closed]
I am doing survey for Titan graph database, and now I'd like to know its performance.
Ideally, I want a report that tells the time consumption for several different queries, with different settings ...
- 51
4
votes
1
answer
154
views
Migrating titan-1.0.0 to janusgraph-0.1.1
I am using titan-1.0.0, I want to migrate it to janusgraph-0.1.1. What are the configuration changes I need to do? I also want to reuse the data which was there for Titan using JanusGraph.
- 127
0
votes
1
answer
647
views
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. ...
- 562
0
votes
1
answer
512
views
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.....
- 562
1
vote
1
answer
421
views
WebSocketGremlinRequestEncoder must produce at least one message - janusgraph-dynamodb using withRemote "sideEffect" doesn't work
When I use gremlin-server connection using gremlin-driver in Java, I am not able to use "sideEffect" of GraphTraversal.
graph = EmptyGraph.instance()
cluster = Cluster.open("conf/remote-objects.yaml"...
- 170