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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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Implement Equivalent Elasticsearch titan query using Elasticsearch java driver

I asked question related to pagination in Elastic Search result fetched by titan here Pagination with Elastic Search in Titan and concluded that its not supporting right now so to get it I decided to search Titan index directly using ES java…
Manish Kumar
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Titan Time To Live for Vertices

I'm wanting to build a Titan store on top of Cassandra, and cassandra has a handy TTL option on columns. Is this functionality exposed in Titan? Or does Titan have its own TTL property that can make nodes/edges disappear?
Peter Klipfel
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How would I create this index in Neo4j?

In Titan, I create an index using: graph.makeKey("name").dataType(String.class).indexed(Vertex.class).indexed(Edge.class).unique().make(); How can I do this in Neo4j using the Java API?
user3408480
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Titan: fetch sorted result

Take the scenario of SO, when we click Questions button it shows all question regardless of tag, when we click a tag it only shows question asked to that particular tag. Second is ok, I will just go to that particular Tag vertex and fetch the…
Manish Kumar
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reading graph from titan using python without rexter server

I am working on python and needs to read data(need to know available available vertices, relationships between them and properties of each vertex) in Titan Graph database(may be in to excel for some understanding or analysis). I read through…
user2695817
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Titan: which approach is good

Think about a simple scenario : Every post posted by a user will have 5 tags. Now I can handle it in two ways: Make separate vertex for each tag and attach it with post vertex postVertex -------- [hastag] ------------> tagNameVertex Add a…
Manish Kumar
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TITAN server monitoring via JMX

Is it possible to monitor TITAN cassandra server with rexster remotely via JMX using something like VisualVM? I have titan installed on the cloud and want to monitor it from my dev box. Is this possible. I have read this…
Rob McFeely
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Titan graph (embedded Cassandra - Elasticsearch), Import CSV files using existing external indexed property keys

I need to figure out how to import CSV files using pre-defined indexed property keys, I tried this: With a empty Titan graph this code works perfectly new File("/home/User/titan-server-0.4.2/propnodes.csv").eachLine{ line…
Alejandro
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Version match with cloudera Hbase and Titan

I'm running hbase-0.94.6-cdh4.5.0 on ubuntu 12.04 as standalone. Could anyone let me know which version of Titan is used for best fit. Please help me out. Thanks in advance. Thanks, Vivek
user3322698
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Using indexed types for ElasticSearch in Titan

I currently have a VM running Titan over a local Cassandra backend and would like the ability to use ElasticSearch to index strings using CONTAINS matches and regular expressions. Here's what I have so far: After titan.sh is run, a Groovy script is…
adaml288
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Iterate over all vertices in a large Titan graph via Rexpro

I am using Titan in my Python application (connecting via RexPro & rexpro-python). I would like to perform a few operations that involve iterating over all vertices in the graph, and I'm wondering what would be the best way to do this (if there's…
bcm360
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Gremlin, join multiples VERTEX base on an Id and add a EDGE in Titan graph db

Having these VERTEX maps **a**) ( County, StreetName, GroupName, Type, BaseRecId, Latitude, StreetSuffix, Longitude, StreetNumber, Zip, City ) **b**) ( SalesPrice, SalesRecId, BaseRecId, SalesDate ) I need to create EDGES ( 1 to many…
Alejandro Barral
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Titan: Good practice about making key

Say I have defined key: g.makeKey("k1").dataType(String.class).indexed(Vertex.class).unique().make(); g.makeKey("k2").dataType(String.class).indexed(Vertex.class).make(); …
Manish Kumar
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GremlinPipeline returns duplicate nodes when i use .both

I use Titan Graph Database (0.4.1 release). I have a directed graph and I am trying to find the neighbors of a node. I use the GremlinPipeLine with the following code: GremlinPipeline pipe = new GremlinPipeline
salvador
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com.thinkaurelius.titan.core.TitanException: Could not acquire new ID block from storage

I am running a simple program TitanGraph bg = TitanFactory.open("/home/titan-all-0.4.2/conf/titan-cassandra-es.properties"); IdGraph g = new IdGraph(bg, true, false); Vertex v = g.addVertex("xyz132456"); g.commit(); Here…
Manish Kumar
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