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Aggregating edges based on the source & target vertex attributes
7 messages
Hello, I request your help regarding the janus graph query which I am trying to construct. Let's consider the following graph where each vertex denotes a person and the edge between any two vertex den
Hello, I request your help regarding the janus graph query which I am trying to construct. Let's consider the following graph where each vertex denotes a person and the edge between any two vertex den
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By
vishnu gajendran
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RDF Import into JanusGraph
2 messages
Hi, I want to know whether we can import RDF(Any format like Turtle or RDF/JSON) into Janusgraph or not. If yes then what are the steps to do that. Any help will highly be appreciated. Thanks.
Hi, I want to know whether we can import RDF(Any format like Turtle or RDF/JSON) into Janusgraph or not. If yes then what are the steps to do that. Any help will highly be appreciated. Thanks.
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By
Ritu Lalwani
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using In-Memory in JanusGraph Verison 0.5.2 Throws Exception
3 messages
Hi folks i have updated janusgraph version from 0.4.1 to 0.5.2. all my previous unit testcases with inmemory config throws expection below. should i want to add any more particular dependency to my pr
Hi folks i have updated janusgraph version from 0.4.1 to 0.5.2. all my previous unit testcases with inmemory config throws expection below. should i want to add any more particular dependency to my pr
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By
"kri...@gmail.com"
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Use index for sorting
7 messages
Hello, I'm using JanusGraph with Cassandra (0.5.2) and ElasticSearch. I try to optimize my queries and use the mixed indexes as much as possible, in particular for sortings, but I have some difficulti
Hello, I'm using JanusGraph with Cassandra (0.5.2) and ElasticSearch. I try to optimize my queries and use the mixed indexes as much as possible, in particular for sortings, but I have some difficulti
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By
toom
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Condition where-inV-is does not work
4 messages
Hi, JanusGraph users. I try a simple query from TinkerPop docs with my JanusGraph installation, but it does not work as expected. How is it possible: gremlin> g.V(41099392).outE('LINK').inV() ==>v[110
Hi, JanusGraph users. I try a simple query from TinkerPop docs with my JanusGraph installation, but it does not work as expected. How is it possible: gremlin> g.V(41099392).outE('LINK').inV() ==>v[110
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By
Anton Eroshenko
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addE doesn't create more than 1 edge
4 messages
I'm trying to link one vertex (let's say Activity) with two others (person), I expect to have two edges in result, the request below creates only one. gremlin> g.V().hasLabel('Activity') ==>v[40984624
I'm trying to link one vertex (let's say Activity) with two others (person), I expect to have two edges in result, the request below creates only one. gremlin> g.V().hasLabel('Activity') ==>v[40984624
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By
Anton Eroshenko
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How to improve traversal query performance
12 messages
Hi All, I'm testing traversal query performance. My query (please see below) takes about 1.8sec. Is there solution for improve performance (faster than 1.8sec)? I hope that takes less than 500ms. 1.En
Hi All, I'm testing traversal query performance. My query (please see below) takes about 1.8sec. Is there solution for improve performance (faster than 1.8sec)? I hope that takes less than 500ms. 1.En
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By
Manabu Kotani
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Configuring Transaction Log feature
21 messages
Hi Guys, We are trying to used transaction log feature of Janusgraph, which is not working as expected.No callback is received at public void process(JanusGraphTransaction janusGraphTransaction, Trans
Hi Guys, We are trying to used transaction log feature of Janusgraph, which is not working as expected.No callback is received at public void process(JanusGraphTransaction janusGraphTransaction, Trans
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By
Sandeep Mishra
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Property with multiple data types
7 messages
I'm new to Janus and LPGs. I have a question after reading the Janus documentation. As far as I understand, edges labels as well as properties (for both nodes and edges) are indexed globally. What hap
I'm new to Janus and LPGs. I have a question after reading the Janus documentation. As far as I understand, edges labels as well as properties (for both nodes and edges) are indexed globally. What hap
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By
Laura Morales
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Centric Indexes failing to support all conditions for better performance.
5 messages
JanusGraph documentation: https://docs.janusgraph.org/index-management/index-performance/ is describing usage of Vertex Centrix Index [edge=battled + properties=(rating,time)] g.V(h).outE('battled').h
JanusGraph documentation: https://docs.janusgraph.org/index-management/index-performance/ is describing usage of Vertex Centrix Index [edge=battled + properties=(rating,time)] g.V(h).outE('battled').h
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By
chrism
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Is there a standard, human-friendly, serialization format?
2 messages
All the examples that I see in the Janus documentation seem to use Groovy. Instructions such as JanusGraphFactory.open(), graph.openManagement(), mgmt.makeEdgeLabel() etc. Is there any human-friendly
All the examples that I see in the Janus documentation seem to use Groovy. Instructions such as JanusGraphFactory.open(), graph.openManagement(), mgmt.makeEdgeLabel() etc. Is there any human-friendly
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By
Laura Morales
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subscribe
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By
Laura Morales
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Error when running JanusGraph with YARN and CQL
5 messages
Hello, I am trying to run SparkGraphComputer on a JanusGraph backed by Cassandra and ElasticSearch. I have previously verified that I am able to run SparkGraphComputer on a local Spark standalone clus
Hello, I am trying to run SparkGraphComputer on a JanusGraph backed by Cassandra and ElasticSearch. I have previously verified that I am able to run SparkGraphComputer on a local Spark standalone clus
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By
Varun Ganesh
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Profile() seems inconsisten with System.currentTimeMillis
2 messages
Hi, Can anyone explain why the total duration displayed by the profile() step is more than twice as large as the time difference clocked with System.currentTimeMillis? see below, For those who wonder,
Hi, Can anyone explain why the total duration displayed by the profile() step is more than twice as large as the time difference clocked with System.currentTimeMillis? see below, For those who wonder,
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By
HadoopMarc
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Janusgraph Hadoop Spark standalone cluster - Janusgraph job always creates constant number 513 of Spark tasks
8 messages
Hello, I have setup Janusgraph 0.4.0 with Hadoop 2.9.0 and Spark 2.4.4 in a K8s cluster. I connect to Janusgraph from gremlin console and execute: gremlin> og ==>graphtraversalsource[hadoopgraph[cassa
Hello, I have setup Janusgraph 0.4.0 with Hadoop 2.9.0 and Spark 2.4.4 in a K8s cluster. I connect to Janusgraph from gremlin console and execute: gremlin> og ==>graphtraversalsource[hadoopgraph[cassa
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By
dimitar....@...
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How to open the same graph multiple times and not get the same object?
5 messages
Hello, I'm writing a Java program that, for various implementation details, needs to open the same graph multiple times. Currently I'm using JanusGraphFactory.open(...), but this always looks up the g
Hello, I'm writing a Java program that, for various implementation details, needs to open the same graph multiple times. Currently I'm using JanusGraphFactory.open(...), but this always looks up the g
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By
Mladen Marović
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OLAP, Hadoop, Spark and Cassandra
5 messages
Hi, I'm trying to get JanusGraph 0.4.0 with a Cassandra (CQL) backend setup and running as OLAP while still keeping OLTP active in order to do graph updates. I've been searching high and low for some
Hi, I'm trying to get JanusGraph 0.4.0 with a Cassandra (CQL) backend setup and running as OLAP while still keeping OLTP active in order to do graph updates. I've been searching high and low for some
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By
sly...@...
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SimplePath query is slower in 6 node vs 3 node Cassandra cluster
Hello, I am currently using Janusgraph version 0.5.2. I have a graph with about 18 million vertices and 25 million edges. I have two versions of this graph, one backed by a 3 node Cassandra cluster an
Hello, I am currently using Janusgraph version 0.5.2. I have a graph with about 18 million vertices and 25 million edges. I have two versions of this graph, one backed by a 3 node Cassandra cluster an
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By
Varun Ganesh
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How to run groovy script in background?
2 messages
Hi all, is it possible run gremlin.sh in background? I try to use `-e` argument to run a groovy script, and always change to stopped status, but it can finish when change to in foreground. ``` [bin]$
Hi all, is it possible run gremlin.sh in background? I try to use `-e` argument to run a groovy script, and always change to stopped status, but it can finish when change to in foreground. ``` [bin]$
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By
Phate
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ERROR: Could not commit transaction due to exception during persistence
``` Caused by: java.lang.IllegalArgumentException: Multiple entries with same key: Completeness_metric.Status=org.janusgraph.diskstorage.indexing.StandardKeyInformation@6bf65470 and Completeness_metri
``` Caused by: java.lang.IllegalArgumentException: Multiple entries with same key: Completeness_metric.Status=org.janusgraph.diskstorage.indexing.StandardKeyInformation@6bf65470 and Completeness_metri
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By
Gaurav Sehgal
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