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Questions tagged [datastax-enterprise-graph]

DataStax Enterprise Graph is a scalable, enterprise-ready graph database.

DataStax Enterprise Graph is a scalable, enterprise-ready graph database capable of storing and querying graphs with billions of elements while providing enterprise features such as security, monitoring, advanced management, encryption and 24/7 support.

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DSE graph Batch write with ifnotexist on edges

I am using DSE graph to load data from a excel and preparing addE gremlin queries through java code and at last executing them over DSE graph. In current testing need to fire 4,00,000 addE gremlin queries with two edge labels. 1) What is best…
user2572801
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Datastax Enterprise Graph GroupCount Order

I have multiple documents I have multiple users Users read documents I want to get documents who read by user Stefan. g.V(). has('user','name','Stefan'). out('read'). hasLabel('document') What other users has read the same document. And what other…
Stefan Straakenbroek
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DSE Gremlin schema Error after Upgradation ( Datastax 5.0 to 5.1)

After Upgrading Datastax Cassandra from version 5.0 to 5.1, we are getting gremlin error while connecting to the existing keyspace as mentioned below, While there is no issue in creating new keyspace in graph and connecting through…
Nithin
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Datastax 5.1 Graph loader - loading uniform files from multiple subdirectories

Graph loader can load files from an explicitly defined directory, but currently has no built in way to automatically recursively load uniform files from multiple subdirectories.
RodogInfinite
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Trouble retrieving newly created Vertices by label using DSE Graph

I am trying to write a simple node application that uses the dse node driver to create some vertices and then to retrieve the created vertices for use in creating edges. The actual vertex retrieval traversals are in the groovy code that I'm…
gerrard00
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Datastax DSE 5.0.x broken behavior on detecting existing vertex by Text() property value when a search index exists on that field

Hi I made this failing Test - I have set the mode to be Production and allow_scans to true. I have also set a materialized index and a search index on property value: schema.propertyKey("value").Text().create()…
Michail Michailidis
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Why I can't query a subset of data from Datastax DSE 5.0.x Graph without getting allow_scan is disabled error?

Hi I have disabled scans in my schema. I know that queries like those wouldn't be allowed: g.V() g.V().hasLabel("User") org.apache.tinkerpop.gremlin.driver.exception.ResponseException: Could not find an index to answer query clause and…
Michail Michailidis
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Search capabilities on datastax enterprise graph

How to achieve search capabilities supported by DSE search / Solr in DSE graph. DSE graph supports to create index of type 'search' for fields but this is limited and does not offer all search engine capabilities. Do we need to have separate…
Tilak
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Java IllegalAccessError trying to connect to datastax DseCluster on localhost

I'm running into an issue trying to connect my java application to an instance of Cassandra running in graph mode. When I try to create my connection, I'm getting the following exception java.lang.IllegalAccessError: tried to access class…
Pat Cataldo
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Vertex label based traversal

I have a use case to do a traversal based on the label of the vertex for searched name. For example : There are three kinds of labels Org, Asset and Class(all containing name as the keys of vertices) in our system. And if we do a search by name and…
Varun Tahin
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Add multiple vertices and multiple edges at one go in DSE-5.0.5 via java driver

Kindly tell a simple solution that takes less time as I have millions of nodes: for(int i=1100000; i<=1200000;i++){ GraphStatement q1 = new SimpleGraphStatement("g.addV(label,…
Varun Tahin
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java.lang.VerifyError : AbstractEpollUnsafe exception on Vertx, Dse application

I am trying to run an application which uses Datastax library for DSE-graph Project pom.xml com.datastax.cassandra dse-driver …
Prakash P
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Dse Graph Schema change on production mode

I went through this tutorial on Datastax website (link added below), which say changing schema on production mode can have anomalous behavior. "First, set the schema mode to Development. Development is a more lenient mode that allows schema to…
Prakash P
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Are server side functions supported in DSE graph?

I am using dse-5.0.5 with dse-studio and have some authorization gremlin queries that should be executed before any query in DSE graph so are server side functions supported in DSE graph so as to speed up the processing and avoid calling function…
Varun Tahin
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Dse Graph - Get all edges between two vertexes

I am using DSE graph 5.X. Suppose I have two Vertex, Vertex A and Vertex B. Dse documentation says about getting vertex and edges individually. But what I am looking for is getting all vertexes of a particular label or all edges between two…
Prakash P
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