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

Question

作为我在403 Forbidden error for Gremlin to AWS Neptune 的最后一篇文章，我可以通过安装在我的EC2 实例上的Tinkerpop Gremlin 控制台v 3.4.3 成功连接到我的海王星集群数据库，因为https://docs.aws.amazon.com/neptune/latest/userguide/iam-auth-connecting-gremlin-console.html 建议的v 3.4.1 不起作用对我来说。

         \,,,/
         (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

但是，我在控制台上使用的所有 Gremlin 命令 (g.) 都出现 NoSuchMethodError 错误。

例如： 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)
....

我也尝试了最新的 Apache Tinkerpop Gremlin Console 3.4.6，同样的错误...

谢谢

Answer 1

我认为您缺少的步骤是获取由您的 EC2 实例分配的 IAM 角色提供的临时凭证，并将其推送到默认凭证提供程序链中，以便 Gremlin 控制台使用的 SigV4Channelizer 可以看到它们。可以在此处查看该过程的高级概述：https://docs.aws.amazon.com/sdk-for-java/v1/developer-guide/setup-credentials.html

可以在此处找到为 Neptune 处理此问题的更规范的方法：https://docs.aws.amazon.com/neptune/latest/userguide/iam-auth-temporary-credentials.html 请参阅标题为“为 Neptune IAM 身份验证设置 Amazon EC2”的部分。

Answer 2

我刚刚尝试使用 Gremlin 控制台 3.4.1，它按预期工作......我认为这是由于版本不兼容问题。我使用的是 Gremlin 控制台 3.4.6