无法使用 Gremlin 连接到 AWS Neptune

Question

我目前正在尝试访问 AWS Neptune 服务器，但在尝试连接时收到以下错误。

我正在从 AWS 学习本教程，但没有成功：https : //docs.aws.amazon.com/neptune/latest/userguide/access-graph-gremlin.html

有没有人遇到过这个问题？

我认为这是因为入站/出站规则，但即使我允许所有流量，它也不起作用。

终点也是正确的。双重检查。

conf/neptune-remote.yml

hosts: [neptuneTest.cu7geofyk01wr.us-east-1.neptune.amazonaws.com]
port: 8182
serializer: { className: org.apache.tinkerpop.gremlin.driver.ser.GryoMessageSerializerV3d0, config: { serializeResultToString: true }}

错误

         \,,,/
         (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
ERROR org.apache.tinkerpop.gremlin.driver.Handler$GremlinResponseHandler  - Could not process the response
io.netty.handler.codec.http.websocketx.WebSocketHandshakeException: Invalid handshake response getStatus: 500 Internal Server Error
    at io.netty.handler.codec.http.websocketx.WebSocketClientHandshaker13.verify(WebSocketClientHandshaker13.java:191)
    at io.netty.handler.codec.http.websocketx.WebSocketClientHandshaker.finishHandshake(WebSocketClientHandshaker.java:216)
    at org.apache.tinkerpop.gremlin.driver.handler.WebSocketClientHandler.channelRead0(WebSocketClientHandler.java:69)
    at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348)
    at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340)
    at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:102)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348)
    at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340)

类似的维基：

• 将 gremlin 连接到 gremlin 服务器时出现问题
  • 不是同一个问题。

Answer 1

在 Kelvin Lawrence 的帮助下：

curl <yourinstancename>:8182/status

如果您看到以下错误，请修复您的 IAM 角色/权限

"requestId":"e2b4ccf0-5470-4a5d-0a34-211d4738f5a8","code":"AccessDeniedException","detailedMessage":"Missing Authentication Token"}