All Questions
111
questions
1
vote
1
answer
71
views
Titan graph API removing the wrong edge
I am using java Titan API to remove edge between 2 vertices as below:
public void deleteEdge(Vertex vFrom, Vertex vTo, String edgeName) {
Iterator<Edge> iter = getEdges(vFrom, Direction.OUT, ...
- 141
0
votes
1
answer
94
views
Titan with remote server?
I have a large project written using the Titan Java API: http://titan.thinkaurelius.com/javadoc/1.0.0/
I want to use a remote Gremlin server rather than having the application open its own connection ...
0
votes
0
answers
547
views
java.io.IOException: Connexion reset by peer - Titan Gremlin request to get multiple vertices
I am trying to get multiple vertices from titan using the gremlin request g.V().has('id', within(id1, id2...)).
I have configured an UNIQUE INDEX for the parameter id.
The query is parameterized and ...
- 105
1
vote
1
answer
2k
views
How to run gremlin scripts on a remote gremlin-server for titan/hbase?
I am using titan/hbase to store my data and Titan and Hbase resides in a remote server machine. I started Gremlin server with bin/titan.sh start. After that I ran following commands on server machine, ...
- 1,425
0
votes
1
answer
18
views
Installation issue: Directory bin in server/dynamodb-titan100-storage-backend-1.0.6-SNAPSHOT-hadoop1 does not exist
I have been trying for a couple of days to install Aws DynamoDB Titan Storage Backend on Windows Subsystem Linux without any success. I am using the following instructions http://docs.aws.amazon.com/...
user4237179
2
votes
1
answer
890
views
ID in out edge in gremlin
I have edge between two vertices
8392 ---> 532500664 with label "has"
still
g.V(8392).out("has").has("id",532500664)
is not working
Tell me how to achieve this?
Note = g is a graph traversal ...
- 450
1
vote
1
answer
310
views
Import package in gremlin
I am trying to import "https://github.com/thinkaurelius/titan/blob/1.0.0/titan-core/src/main/java/com/thinkaurelius/titan/graphdb/tinkerpop/io/graphson/TitanGraphSONModule.java" in gremlin by using ...
- 450
0
votes
0
answers
180
views
How to get two different properties from an edge and a vertex under the same result using by() step?
If a professor is working in three departments and he need to retrieve the department name and experience, In which experience is present on the edge.I need to retrieve both department name and ...
- 13
0
votes
1
answer
154
views
Import of new vertex from external json file
Is this code only import the vertex in json or it imports the vertex & add it to graph
graph.io(GraphSONIo.build()).reader().create().readVertex(new FileInputStream("/tmp/Vertex.json"),null)
- 450
0
votes
1
answer
262
views
getting server could not serialize the result requested. Server error on using .explain() step in gremlin
am getting a serialisation issue when using explain() step for traversals
Server could not serialize the result requested. Server error -
Error during serialization: Class is not registered:
...
- 1,014
1
vote
1
answer
4k
views
Add multiple properties during edge creation in gremlin
I have used this query
g.V().has('empId','123').as('a').V().has('deptId','567').addE('worksAt').properties('startedOn','17/15/07','title','manager','pay',15000)
which doesn't work.
Adding a single ...
- 13
1
vote
2
answers
211
views
ClassNotFoundException when trying to bulk load into titan using a Java MapReduce job
We're currently trying to bulk load some files from HDFS into titan using a map reduce job and the titan dependencies. However, we're running into an issue once the map jobs start where it can't find ...
- 167
2
votes
1
answer
786
views
TITAN- Parallel queries -Concurrent time out exception at org.apache.tinkerpop.gremlin.driver.Client.submit
As a part of the volume and performance test, I am trying to execute multiple gremlin requests (graph traversal) in parallel using java threads. it works fine smaller number of threads .
When i ...
- 105
2
votes
0
answers
266
views
How to remove index in Titan DB (berkeleyJE backend) using gremlin?
I am unable to remove an index from a Titan DB, with berkeleyJE backend.
The status of the index never changes from INSTALLED to DISABLED.
I have tried with both a Java program and with gremlin ...
0
votes
1
answer
366
views
How to list the nodes associated to a given vertex through intermediate nodes in TinkerPop3?
I have a graph in TinkerPop3 in which the nodes are connected through edges with a given weight.
Given a node A in the graph I'm trying to traverse it to obtain all nodes which can be reached from A ...
- 1,724