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Questions tagged [faunus]

Faunus is a Hadoop-based graph analytics engine for analyzing graphs represented across a multi-machine compute cluster.

Faunus is a Hadoop-based graph analytics engine for analyzing graphs represented across a multi-machine compute cluster. A breadth-first version of the graph traversal language Gremlin operates on graphs stored in the distributed graph database Titan, in any Rexster-fronted graph database, or in HDFS via various text and binary formats.

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Loading data into Titan database

I have a set of log data in the form of flat files from which I want to form a graph (based on information in the log) and load it into the Titan database. This data is a few gigabytes in size. I am exploring bulk loading options Faunus and…
DaTaBomB
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At what size is the Faunus Graph Analytics Framework needed for Titan?

I'm looking at performing graph aggregate (groupBy,groupCount) queries across edges on a TitanGraph DB over two data sets: About 10,000 nodes and about 1 million edges About 200,000 nodes and about 1 billion edges Does anyone know at what point I…
chris
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Faunus graph not printing nodes without using side effect from gremlin shell

I'm trying to print a graph in Faunus (v0.4.0) where a node has any edges (incoming or outgoing). From the gremlin shell, I tried: g = FaunusFactory.open('faunus.properties') g.V.filter("{it.bothE.hasNext()}").sideEffect("{println it}") When I do…
Jeff Storey
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Trying to write to HDFS on a remote machine using Faunus

I am trying to pull data from a Titan-Cassandra graph database and write it to a single Hadoop node using Faunus. The Hadoop node is running on a remote machine. So, the machine on which Faunus is running acts like a source from which data is…
user3772435
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Faunus json reader error in json file format

I'm using a json file to load nodes and edges to faunus gremlin but it gives me error like this... java.io.IOException: A JSONObject text must end with '}' at character 1 of { at…
Yank Leo
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Shortest Path with Titan and Cassandra

Currently we are using Titan Graph DB with Cassandra as backend for a telecom application. The database consists of Network topology details. We have a requirement to calculate the shortest path between network nodes based on the Dijkstra algorithm.…
user3364247
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gremlin user defined steps in faunus script map

Background: I have several months experience using Gremlin and Faunus, incl. the ScriptMap step. Problem: User defined Gremlin steps work fine when loaded in the shell as part of a script. However, the same steps apparently have no effect when…
fsj
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faunus script map completing but not mutating graph

Prelude: Several months experience using both Gremlin "dialects" for FaunusGraph & TitanGraph, so well aware of the functional and syntactic diffs. Have successfully used Faunus script step…
fsj
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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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