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Questions tagged [amazon-neptune]

For questions related to Amazon Neptune, a graph database service which supports both Property Graph and RDF graph models, as well as their respective query languages Apache TinkerPop Gremlin, openCypher and SPARQL.

Overview, Features, Pricing, Getting Started, Resources, FAQs

930 questions
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Gremlin: Returning valueMap/projected properties from group by query

Let's say I have two types of vertices, parents and children. I want to be able to query for all parent vertices and have all the children grouped by their associated parent along with properties for each child. Assume parents have multiple children…
dl8
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How to run multiple gremlin commands as a single transaction?

In Amazon Neptune I would like to run multiple Gremlin commands in Java as a single transactions. The document says that tx.commit() and tx.rollback() is not supported. It suggests this - Multiple statements separated by a semicolon (;) or a newline…
Gilad
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How to use AWSRequestSigningApacheInterceptor with AWS SDK2

I am trying to use REST calls to Neptune SPARQL on existing Java code which already uses Apache HTTP clients. I'd like to not mix and match AWS SDK1 and SDK2 (which I use for the S3 portion of loading owl to Neptune). I see these…
Paul Cuddihy
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How to integrate the visualisation tool Graphexp with Neptune from EC2 instance in the same VPC as Neptune

I have setup an AWS Neptune database cluster with one primary and two replica nodes in three private subnets, each in three availability zones within the same region. I have also created corresponding public subnets where EC2 instances will have a…
sage
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getting match on multiple labels in Amazon Neptune with Gremlin

Amazon Neptune's implementation of Gremlin allows for multiple labels on vertices (see https://docs.aws.amazon.com/neptune/latest/userguide/access-graph-gremlin-differences.html) But how to query for vertices by multiple…
Graphileon
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AWS Neptune datetime()

I'm using gremlin-javascript to talk to AWS Neptune from Node. According to the docs and quickstart, dates should be set using datetime(). I did not find an implementation of this datetime() function in gremlin. Where should this be imported…
Fook
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Proper handling of date operations in Gremlin

I am using AWS Neptune Gremlin with gremlin_python. My date in property is stored as datetime as required in Neptune specs. I created it using Python code like this: properties_dict['my_date'] = datetime.fromtimestamp(my_date, timezone.utc) and…
cryanbhu
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AWS Neptune transaction support

Neptune currently supports only OLTP type of graph traversal queries? But from documentation: Transactions Neptune opens a new transaction at the beginning of each Gremlin traversal and closes the transaction upon the successful completion of the…
ThanosG
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AWS Neptune: Query Timeout Value

I run a long query (a two min long maybe) and the code crashes with a timeout error. I don't use the Gremlin-Server, I directly connect to the Neptune End-point from my Python code. For NEO4J I change the scriptEvaluationTimeout located at…
Srinath Ganesh
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Handling query results in Golang

Consider the following method which executes a gremlin query in Go and then interprets or parses the results. func (n NeptuneGremlinGraph) Query(assetID string, version string, entityID string) ([]hz.Component, error) { defer…
Michael Burbidge
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AWS Neptune simple opencypher count query takes too long

I have a graph database in AWS neptune which has 60M nodes. A simple count query to count all nodes takes ~6-7 minutes. query is: MATCH (n) RETURN count(n) as count Is 6 minutes to count 60 million nodes normal? what can I do to make it…
Mustahsan
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Unable to create edges

I have created an AWS AppSync graphql api which on being called will run an AWS Lambda function and that function will create a vertex and edge using query language Gremlin but I am unable create edge after vertex is successfully created and AWS…
Hamza Ahmed Sheikh
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AWS Neptune Node counts timing out

We're running a large bulk load into AWS neptune and can no longer query the graph to get node counts without the query timing out. What options do we have to ensure we can audit the total counts in the graph? Fails on curl and sagemaker notebook.
Ryan
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Neptune DB doesn't change property value to the previous value

I have very weird issue with AWS Neptune DB. I can only change property to new value and can't use any of previous names. I'm using gremlin and node.js. That sounds so weird so let me to add some code: const DriverRemoteConnection =…
Dima Kurilo
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unable to connect to AWS Neptune DB after enabling IAM DB authorisation

I am trying to connect to AWS neptune DB after enabling IAM DB authorisation and it is not able to connect and failing with below error. {"code":"AccessDeniedException","requestId":"68bbc87a-cbf6-31d3-5829-91f32062239f","detailedMessage":"Missing…
santosh nahak
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