Amazon Web Services Question posted in
The official Amazon Web Services documentation can be found here.

Amazon web services – Gremlin Console – Connecting to Amazon Neptune with Sig4 signing

I need to connect to Amazon Neptune using Gremlim console.
Tried all steps for setup and signing configuration but following error occurs when connecting to Neptune.

Steps performed:

  1. Install JDK 
    sudo amazon-linux-extras install java-openjdk11
  2. Install Gremlin Console 
    wget https://archive.apache.org/dist/tinkerpop/3.4.10/apache-tinkerpop-gremlin-console-3.4.10-bin.zip

unzip apache-tinkerpop-gremlin-console-3.4.10-bin.zip

cd apache-tinkerpop-gremlin-console-3.4.10
  3. Install AWS signing library: amazon-neptune-gremlin-java-sigv4 
    bingremlin.sh

         ,,,/
         (o o)
-----oOOo-(3)-oOOo-----
plugin activated: tinkerpop.server
plugin activated: tinkerpop.utilities
plugin activated: tinkerpop.tinkergraph
gremlin> :install com.amazonaws amazon-neptune-sigv4-signer 2.4.0
log4j:WARN No appenders could be found for logger (org.apache.tinkerpop.gremlin.groovy.util.DependencyGrabber).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
==>Loaded: [com.amazonaws, amazon-neptune-sigv4-signer, 2.4.0]
  4. Create configuration for Neptune connection: conf/neptune-remote.yaml 
    hosts: [your-neptune-endpoint]
port: 8182
connectionPool: {
    channelizer: org.apache.tinkerpop.gremlin.driver.SigV4WebSocketChannelizer,
    enableSsl: true
} 
serializer: { className: org.apache.tinkerpop.gremlin.driver.ser.GraphBinaryMessageSerializerV1,
          config: { serializeResultToString: true }}
  5. Connect (fails) 
    gremlin> :remote connect tinkerpop.server conf/neptune-remote.yaml
==>Error during 'connect' - The channelizer specified [org.apache.tinkerpop.gremlin.driver.SigV4WebSocketChannelizer] could not be instantiated - it should be the fully qualified classname of a Channelizer implementation available on the classpath

How do I get this working? Do I need to set classpath?

Tags:

2

Answers


  2. 0

    For an optimal developer experience with your Amazon Neptune database you may also want to consider alternative tools that are better integrated (and far more feature-rich) than the default Gremlin Console, particularly when it comes to IAM auth use cases.

    The Amazon Neptune team provides Graph Notebook https://docs.aws.amazon.com/neptune/latest/userguide/graph-notebooks.html which can be either deployed manually or via Amazon SageMaker

    G.V() (https://gdotv.com) is a graph IDE that is fully compatible with Amazon Neptune and offers advanced capabilities, as shown in https://docs.aws.amazon.com/neptune/latest/userguide/visualization-GV.html. In the interest of disclosure, G.V() is a tool that I maintain.

    There’s also a list of other available tools listed directly on the Amazon Neptune documentation at https://docs.aws.amazon.com/neptune/latest/userguide/visualization-tools.html.

    Login or Signup to reply.
Please signup or login to give your own answer.

Back To Top
Search