Tinkerpop Gremlin Console: java.lang.NoSuchMethodError: org.apache.tinkerpop.gremlin.driver.RequestOptions$Builder.userAgent

问题

As my last post at 403 Forbidden error for Gremlin to AWS Neptune, I could successfully connect to my Neptune Cluster DB via my Tinkerpop Gremlin console v 3.4.3 that installed at my EC2 instance as v 3.4.1 suggested at https://docs.aws.amazon.com/neptune/latest/userguide/iam-auth-connecting-gremlin-console.html didn't work for me.


         \,,,/
         (o o)
-----oOOo-(3)-oOOo-----
plugin activated: tinkerpop.server
plugin activated: tinkerpop.utilities
plugin activated: tinkerpop.tinkergraph
gremlin> :remote connect tinkerpop.server conf/neptune-remote.yaml
==>Configured <my neptune>.cluster-cm<cluster id>.ap-southeast-2.neptune.amazonaws.com/<private ip>:8182
gremlin> :remote console
==>All scripts will now be sent to Gremlin Server - [<my neptune>.cluster-cm<cluster id>.ap-southeast-2.neptune.amazonaws.com/<private ip>:8182] - type ':remote console' to return to local mode

However, I'm getting NoSuchMethodError error for all Gremlin commands (g.) that I used on the console.

e.g: g.V()

gremlin> g.V()
org.apache.tinkerpop.gremlin.driver.RequestOptions$Builder.userAgent(Ljava/lang/String;)Lorg/apache/tinkerpop/gremlin/driver/RequestOptions$Builder;
Type ':help' or ':h' for help.
Display stack trace? [yN]Y
java.lang.NoSuchMethodError: org.apache.tinkerpop.gremlin.driver.RequestOptions$Builder.userAgent(Ljava/lang/String;)Lorg/apache/tinkerpop/gremlin/driver/RequestOptions$Builder;
    at org.apache.tinkerpop.gremlin.console.jsr223.DriverRemoteAcceptor.send(DriverRemoteAcceptor.java:214)
    at org.apache.tinkerpop.gremlin.console.jsr223.DriverRemoteAcceptor.submit(DriverRemoteAcceptor.java:168)
    at org.apache.tinkerpop.gremlin.console.GremlinGroovysh.execute(GremlinGroovysh.groovy:110)
...

g.addV('person').property('name', 'justin')

gremlin> g.addV('person').property('name', 'justin')
org.apache.tinkerpop.gremlin.driver.RequestOptions$Builder.userAgent(Ljava/lang/String;)Lorg/apache/tinkerpop/gremlin/driver/RequestOptions$Builder;
Type ':help' or ':h' for help.
Display stack trace? [yN]Y
java.lang.NoSuchMethodError: org.apache.tinkerpop.gremlin.driver.RequestOptions$Builder.userAgent(Ljava/lang/String;)Lorg/apache/tinkerpop/gremlin/driver/RequestOptions$Builder;
    at org.apache.tinkerpop.gremlin.console.jsr223.DriverRemoteAcceptor.send(DriverRemoteAcceptor.java:214)
    at org.apache.tinkerpop.gremlin.console.jsr223.DriverRemoteAcceptor.submit(DriverRemoteAcceptor.java:168)
    at org.apache.tinkerpop.gremlin.console.GremlinGroovysh.execute(GremlinGroovysh.groovy:110)
....

I have also tried the latest Apache Tinkerpop Gremlin Console 3.4.6, same error I had...

Thanks

回答1:

I think the step you're missing is taking the temporary credentials provided by your EC2 instance's assigned IAM role and pushing those into the Default Credential Provider chain in order for them to be seen by the SigV4Channelizer used by the Gremlin Console. A high level overview of that process can be seen here: https://docs.aws.amazon.com/sdk-for-java/v1/developer-guide/setup-credentials.html

A more prescriptive way of handling this for Neptune can be found here: https://docs.aws.amazon.com/neptune/latest/userguide/iam-auth-temporary-credentials.html See the section titled, "Setting Up Amazon EC2 for Neptune IAM Authentication".

回答2:

I just tried to use Gremlin console 3.4.1 and it's working as expected... I think it's due to Incompatible Version issue. I was using Gremlin console 3.4.6

来源：https://stackoverflow.com/questions/61810488/tinkerpop-gremlin-console-java-lang-nosuchmethoderror-org-apache-tinkerpop-gre

标签

amazon-web-services

gremlin

tinkerpop3

amazon-neptune