Stack Overflow
Stack Overflow

Questions tagged [rexster]

Rexster is a high-performance graph server that allows you to access any Blueprints graph through from any programming language through its binary protocol or its HTTP/REST API.

Rexster is a high-performance graph server that allows you to access any Blueprints graph from any programming language through its binary protocol called RexPro or its HTTP/REST API.

You query Rexster with the graph-traversal language Gremlin, and you can extend Rexster to support custom server-side algorithms for graph searching, scoring, ranking, and recommendation.

119 questions
0
votes
1 answer

Fastest way to delete Neo4j graph from Rexster

My use case requires that I clear the graph as quick as possible, so as to ingest a new graph. I have Millions of Vertices and Edges in the Neo4j graph implemented through Rexster. I tried deleting a graph with 2.8 Million edges using g.E.remove()…
JAO
  • 39
  • 1
  • 8
0
votes
1 answer

Issues with connecting a Neo4j 2.2.3 graph.db with a gremlin 2.6.0 console or rexster 2.6.0 interface

What i have done .. Trying to connect to graph.db generated by neo4j 2.2.3 so as to work with the sample Movie graph (to use other graphs later on..) after saving the Movie nodes and relationships by running the cypher query for Movie Graph in…
JAO
  • 39
  • 1
  • 8
0
votes
1 answer

Running titan rexster server bat file through java

I am trying to run rexster.bat file through a java code but the server is not coming up. Here is my code: File dir = new File("C:\\output\\titan-rexster-server-2.5.0\\bin"); p = Runtime.getRuntime().exec("C:\\Windows\\System32\\cmd.exe /c…
Vrushank Doshi
  • 2,428
  • 5
  • 20
  • 34
0
votes
1 answer

Loading data into Titan with bulbs and then accessing it

I am a complete novice in graph databases and all the Titan ecosystem, so please excuse me sounding stupid. I am also suffering from the lack of documentation -_- I've installed the titan server. I am using Cassandra as a back-end. I am trying to…
Denys
  • 4,287
  • 8
  • 50
  • 80
0
votes
1 answer

How to Query a Titan index(standard) directly to retrieve vertices in sorted order

I am using Rexster/TITAN 0.4 over Cassandra. The vertex keys are indexed using standard index as below. g.makeKey("domain").dataType(String.class).indexed("standard", Vertex.class).make(); I am not using Uniqueness for performance and…
Remis Haroon - رامز
  • 3,304
  • 4
  • 34
  • 62
0
votes
1 answer

Graph Database Structure

I will use Sparsity (former name is DEX) graph database in my case. But haven't got experience related with graph databases. I have read several articles, many of them suggest several things(Rexster server, REST API, Bluprint etc.) in order to use…
Rauf Aghayev
  • 300
  • 1
  • 12
0
votes
1 answer

Rexster/Rexpro : RexProScriptException: .. java.util.concurrent.ExecutionException: java.lang.OutOfMemoryError: PermGen space

I am using a TITAN-0.4.3, REXSTER 2.4 over Cassandra & Elasticsearch. I am calling rexpro from Python. In a single gremlin-request, I am trying to add 100 vertices and commit. I am able to successfully add 40000+ vertices, in 400+ gremlin-requests.…
Remis Haroon - رامز
  • 3,304
  • 4
  • 34
  • 62
0
votes
1 answer

Titan : How to check the index characteristics, such as UNIQUE or not?

I am using TITAN 0.4 version, with cassandra as storage backend. There are certain indexes created on Vertex properties. I want to check whether they are UNIQUE() or not? Since I am using 0.4 version, g.getManagementSystem() is not available. I am…
Remis Haroon - رامز
  • 3,304
  • 4
  • 34
  • 62
0
votes
1 answer

TITAN : Cassandrathrift vs Astyanax performance

I am using a TITAN-0.4.3, REXSTER 2.4 over Cassandra(6 node cluster) & Elasticsearch. My use case requires to bulk upload vertices and edges into the graph at a time. Presently the rate at which adding new vertex+edge is very slow ( ~45 / sec ), and…
Remis Haroon - رامز
  • 3,304
  • 4
  • 34
  • 62
0
votes
1 answer

SystemError when connecting to Rexster with bulbs

I have set up a Titan + Cassandra + Elasticsearch + Rexster server. Everything installed correctly and I am able to play around with the "Graph of the Gods" in the Gremlin console. I started everything with the titan.sh script. titan/bin/titan.sh…
Iulian
  • 1,496
  • 2
  • 15
  • 35
0
votes
0 answers

rexster http or rexpro taking very long to connect

Posted the same question in gremlin-group and auriliusgraphs group, in absence of any help posting it here. I'm currently evaluating titan+rexster+cassandra+gremlin, in our use case writes to graph are quite straight forward and will almost always…
pseudonym
  • 129
  • 1
  • 8
0
votes
1 answer

How to find the information about index created on Titan/Rexster graph database with cassandra as datastore

I have a Rexster/Titan + Cassandra configuration. I have created unique index over vertex properties. How can I verify the index has created properly? and also to check the other properties such as uniqueness and any other information about the…
Remis Haroon - رامز
  • 3,304
  • 4
  • 34
  • 62
0
votes
0 answers

How to add a vertices to specified graph of rexsterserver (titan/cassandra)?

I am using rexster server with Titan cassandra. and all are installed in my local host. me configure my rexster.xml to create a specific graph. empgraph tinkergraph`enter code…
ram
  • 73
  • 1
  • 7
0
votes
2 answers

Using Rexster and Titan Graph DB for scalable applications

I have a python application communicating with Titan graph database backed by Cassandra. Python App ---------> Rexster Server + Titan Graph DB + Cassandra. The "Rexster Server + Titan Graph DB + Cassandra" is inside a single JVM. My python…
liv2hak
  • 14,472
  • 53
  • 157
  • 270
0
votes
1 answer

Performance benchmark while accessing Titan Graph DB from python via Bulbs

I have Titan (with embedded cassandra running on my system). cd titan-cassandra-0.3.1 bin/titan.sh config/titan-server-rexster.xml config/titan-server-cassandra.properties I have rexster client running cd…
liv2hak
  • 14,472
  • 53
  • 157
  • 270
1 2 3 4 5
6
7 8