Questions tagged [gremlin]
Gremlin is the graph traversal language and virtual machine of Apache TinkerPop™
gremlin
3,615
questions
0
votes
1
answer
51
views
Gremlin Query Returns Different Structures Based on Page Size: Array vs Single Map
I'm working with Gremlin queries and encountering an unexpected behavior based on the page size specified. When I set the page size to more than one, the query returns an array of group maps under the ...
0
votes
1
answer
36
views
Cannot update a property in a graph vertex with an array of values (Neptune)
Following the instructions of Neptune, Python, Gremlin: Update a property in a graph vertex with an array of values, I created this query g.V('{node_id}').as('node').values('sentenceIDs').as('...
1
vote
2
answers
56
views
Does Azure cosmos DB allows case insensitive search using Gremlin query?
I have a gremlin query like g.V().hasLabel('test').has('name',TextP.containing('ar')). But this query is doing case sensitive search. It is not returning me the vertices that has name Ar.
Suppose if I ...
0
votes
1
answer
30
views
Select doesn't iterate within gremlin query. Help requested
I've tried slicing and dicing this query multiple ways in order to allow the DB to a majority of the bulk processing vs. on the client side. To do this I plan on injecting a map, we can start with the ...
0
votes
0
answers
19
views
java.lang.InterruptedException with Tinkerpop 3.7.1
So I have a multithreaded Java service which is reading events off a queue and writing the objects to a Tinkerpop graph instance. It can crank along for quite sometime, but will eventually die with ...
- 471
-1
votes
1
answer
100
views
Gremlin Customized Output using project
gremlinify: https://gremlify.com/l3gujyc2e5
pls execute Query 2 and 2.1 to see the difference.
I have an acyclic uni-directional graph in Cosmos Graph Db.
My graph has 2 types of vertices:
item(Label:...
0
votes
0
answers
23
views
GremlinJs: How to compare property from vertex earlier in traversal to the property of the vertex at the current traversal loc
I'm trying to run a query on a graph of people that, for a given user, returns all vertices that are a friend of friend of that user AND that have the same last name. I'm having trouble storing an ...
- 157
1
vote
0
answers
52
views
gremlin python open janusgraph database using submit()
I was trying to switch to different database on runtime in gremlin_python. To do this, I used JanusGraphFactory.open() to open different configuration. Because gremlin_python does not have ...
- 11
1
vote
0
answers
36
views
gremlin query to count by path-length all paths between nodes that share the same (specified) label
I have a graph with no cycles. Each vertex has a label. For those with a specific label, call it "A", I want to count
how many nodes with label "A" are not connected to any other ...
- 11
0
votes
0
answers
60
views
Connecting Lambda to Neptune DB CDK
I'm trying to connect a nodeJS lambda to a Neptune serverless instance. I can't get this to work. I've tried just about everything I can think of but the connection always times out. I'm wondering if ...
- 154
1
vote
0
answers
43
views
Neptune Gremlin weird mergeE behavior, updates vertex instead of edge
I think there's a bug in mergeE(). Here's my setup in neptune
g.V().hasLabel('mytestlabel').drop()
g.addV('mytestlabel').property(id, 'testA').property('timestamp', 1).as('a')
.addV('mytestlabel')....
- 549
1
vote
1
answer
78
views
I am creating client application in java using tinkerpop for gremlin but i am unable to query through my application. JanusGraph and Gremlin server
I am trying to build client application in java for gremlin. My janusgraph server is running on one more virtual machine in the same network. Through my gremlin client code i am able to establish ...
2
votes
1
answer
46
views
Gemlin query to output a tree to a specific format
First off, I'd like to say I've very new to this so apologies for any clangers!
I have a fairly simple hierarchy of recipes and ingredients.
I'm looking to create a query that outputs something like ...
- 1,243
1
vote
1
answer
237
views
AWS Neptune Timeout simple query
I have a fairly straightforward neptune query, gets the next 5 nodes
this.g.V(id).repeat(__.inE().outV()).emit().times(depth).tree().by(__.valueMap(true));
My graph is currently small, around 3500 ...
- 549
0
votes
0
answers
80
views
High memory consumption on Gremlin query (using Neptune)
I running out of "freeable memory" on my Neptune cluster when running this query multiple times:
g.V().
has('User', 'uuid', 'c4746c15-4f8e-42a4-97d3-8e2d25de2dc0').
repeat(__.both('...
- 1,243