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Questions tagged [titan]

Titan is a highly scalable graph database optimized for storing and querying massive-scale graphs containing billions of vertices and edges distributed across a multi-machine cluster

Titan is a highly scalable graph database optimized for storing and querying massive-scale graphs containing billions of vertices and edges distributed across a multi-machine cluster.

Titan is a transactional database that can support thousands of concurrent users.

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951 questions
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Titan - Faunus - Gremlin Examples

i want use Titan with Cassandra as graph database (with Faunus as Framework). Where can i get example codes for Faunus or Gremlin? I want to query the pagerank algo on the Graüh DB?
FrankyK
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How can I search for a vertex and create edge in a single query?

I am using gremlin query to search for vertices from a given vertex. v.both("edgeLabel").has("propertykey", "27826345"); This query is returning a bunch of vertices. Now I am creating edges from 'v' to all those returned vertices by simple…
Pradatta
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Titan server configuration for windows server 2008

io-strategy is set as "worker" in titan-server-rexter.xml config file (default installation) Second session's Gremlin queries does not work with it. I've set io-strategy as "leader-follower". It seems working. Is this configuration appropriate for…
Oguz Karadenizli
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GMongo instance undefined from gremlin shell in neo4j

I am trying to load the data from mongodb database from the Gremlin shell in neo4j in order to create a graph databse from it. The detail is explained in gremlin-mongodb. To get started, I downloaded the GMongo jar file fom GMongo and ran the…
user1848018
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clojure titanium - How to save to berkely DB?

I can read and add stuff to a titanium graph (using berkely DB backend) e.g. the following: (let [g (tg/open "/tmp/mygraph")] I can then use (tg/add-vertex g ... to modify the graph. But how do I save the modified graph to my berkleydb backend? I…
user2105553
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Any graphical interface of JanusGraph Gremlin Query

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 - which should from a gremlin query and retrieve the…
learn groovy
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Embedded and Distributed Key Value Store or Graph Database for Java

Is there a distributed Key-value store or Graph Database that can be integrated into a Java application. I'm looking at Titan + BerkeleyDB but it seems it still needs a separate server. http://titan.thinkaurelius.com/wikidoc/0.4.0/Home.html Can…
quarks
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Is there a way to build a graph in Gephi and export it to TitanDb?

Is there a way to build a graph using Gephi with the Data Laboratory and export it to titan db? I tried the following without success: Built a simple graph in Gephi with the Data Laboratory Saved the graph as GraphML format Used the titanDb's…
Breach
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Explain TitanDB 1.0.0 Architecture vs OrientDB architecture?

I have to compare and contrast between them. So any one can explain it or give any reference?
Mayur Raikwar
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Titan with dynamodb

I am trying to upload a social networking friends list data to titan with dynamodb. The dataset is from https://archive.org/download/friendster-dataset-201107 with the details about the dataset discussed in…
user3138541
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Is the Bluemix graph database service running Titan under the hood?

Is the Bluemix graph database service running a regular version of Titan under the hood? won't it be phased out given the TitanDB acquisition, and how can it claim tinkerpop version 3 at a time when the open-sourced version of Titan is still at…
matanster
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Titan IllegalArgumentException:Could not instantiate implementation:com.thinkaurelius.titan.diskstorage.cassandra.astyanax.AstyanaxStoreManager

I'm a beginner with Titan Graph Database and I'm just trying to create a simple titan graph in a particular path using eclipse.Initially , setting the titan configurations followed by creating two vertices and an edge. This is the code i had given…
sabi
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Key Index Must Be Created Prior to Key Being Used

Key Index Must Be Created Prior to Key Being Used Before a key is used as a vertex property, a key index must be created for it if indexing is desired. This pitfall will be fixed in a future release. Is there any way to overcome this limitation
abi_pat
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Issue while ingesting a Titan graph into Faunus

I have installed both Titan and Faunus and each seems to be working properly (titan-0.4.4 & faunus-0.4.4) However, after ingesting a sizable graph in Titan and trying to import it in Faunus via FaunusFactory.open( ) I am experiencing issues. To…
Mirco A. Mannucci
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Titan: NullPointerException is thrown instead of IllegalArgumentException

In this code Vertex page = graph.getVertex(pageId); If pageId doesn't exist it should throw IllegalArgumentException but instead it throws NullPointerException. Here page is null. I am catching IllegalArgumentException exception but its…
Manish Kumar
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