Questions tagged [tinkerpop]
Apache TinkerPop™ is a graph computing framework for both graph databases (OLTP) and graph analytic systems (OLAP).
tinkerpop
1,007
questions
0
votes
1
answer
148
views
AWS Neptune recommendation to make response faster
I recently had to use AWS Neptune in an authorization service to model a dataset that has intrincate relations between entities, most of them are many to many relations. This is the model I came up ...
- 135
0
votes
1
answer
200
views
How to use Cardinality properly in mergeV in gremlin javascript?
I'm trying to set cardinality. It works with addV, for example
await g.V(id1).property(single, 'timestamp', 10).next();
However it does not work when I try to do it with mergeV
const ...
- 549
1
vote
1
answer
71
views
Why doesnt the gremlin query return edges using path() when logical operators are present in the query?
I am fairly new to gremlin query and janusgraph. I had a requirement to get both edges and nodes of the graph given various properties of the nodes and the relationship between them. There can be ...
2
votes
1
answer
86
views
Is there a nicer way to force a Gremlin query to fail when it discovers an invalid state?
It would be nice if there was a way to have a Gremlin query terminate with some kind of
error message if, as part of the query, it is determined that there is no point
proceeding further. One not very ...
- 14.2k
0
votes
1
answer
26
views
OrientDB v3.2.21 - No more resources available in pool (max = 50)
I'm upgrading from OrientDB v2 with Tinkerpop 2.0 to OrientDB v3.2.21 with the Tinkerpop 3.0. In OrientDB v2, I've always use the OrientGraphFactory with setupPool(1, 50). However, in OrientDB v3, if ...
- 25
0
votes
1
answer
104
views
Gremlin "merge" api resulting in UnsupportedOperationException in 3.6.2, but works in 3.7.0
When using org.apache.tinkerpop:tinkergraph-gremlin:3.7.0 the following statement works. It comprises 3 merge statements. In plain English: insert vertex endpoint e1, upsert vertex permission p1, ...
- 1,908
1
vote
0
answers
44
views
How to use a single query to retrieve a vertex whose id is given by the traversal?
I have a graph on Azure CosmosDB which involves company hierarchies where a Top Parent exists and there are child companies like
CompanyX(Top Parent) -> CompanyY(Child of X + Parent of A) -> CompanyA(...
2
votes
1
answer
105
views
gremlin query to n hops and traversal of all sub edges and nodes
I am trying to create a graph where i can find all relationships with given person and list of their friends.
the problem statement my graph looks like this
bob ->friends -> jay
jay -> ...
- 686
1
vote
1
answer
124
views
How do I create AWS Neptune nodes with nested proprieties using gremlin queries
I'm looking into a way to create nodes with nested proprieties like the "location" inside this example, that I found on Github here: https://github.com/apache/tinkerpop/blob/master/data/...
- 13
0
votes
0
answers
27
views
Query to find the current size of janusGraph?
What is the Query to find the current size of janusGraph?
or is there any Tinkerpop query to find the database size?
- 9,116
0
votes
1
answer
28
views
What's a hasContainer() in TinkerPop Gremlin?
I recently stumbled upon the concept of hasContainers, however I don't find much about what it is in the documentation and the Practical Gremlin book.
So what's a hasContainer and how and when is it ...
- 71
0
votes
0
answers
69
views
Gremlin query to assign single property to all connected components
I need to write query which does following steps:
Takes selected vertexes ids and goes through all connected components with SinglePath.
Each of initial and connected vertex may have gl_id property ...
0
votes
1
answer
36
views
How to rewrite OrientDB query to Gremlin (TinkerPop)?
I have simple OrientDB query
MATCH {class:SomeObj, as:obj,
Where:(
(outE('SomeEdge')[in=#74:2].StringValue="STRINNNGGG") and
(outE('SomeEdge')[in=#75:2].NumberValue=333)
...
- 23
1
vote
1
answer
76
views
What Gremlin query can I write to create custom relationships between all pairs nodes that have a certain number of connections in common?
In AWS Neptune, I have a graph that has many clusters like the one defined below:
g.addV('person').property('name', 'John').as('p1')
.addV('person').property('name', 'Weihua').as('p2')
.addV('...
- 23
1
vote
1
answer
70
views
Hashmap as Property Value in Janusgraph
I use a janusgraph docker container. I connect with it via tinkerpop remote connection in my Java application.
I want to set a hashmap as property value on a specific node. That should be possible ...
- 182