Datastax DSE 5.0 Graph: Gremlin console not working

Question

I have installed DSE 5.0 on a cloud-based server to try out the Gremlin tools. DSE in general seems to be OK, with the relevant ports available etc, but when I start Gremlin console on the server command-line, the console opens OK, but the basic first steps in simply creating a graph from the tutorials raise errors:

gremlin> graph = TinkerFactory.createModern()
==>tinkergraph[vertices:6 edges:6]

gremlin> g = graph.traversal()
org.apache.tinkerpop.gremlin.tinkergraph.structure.TinkerGraph cannot be cast to com.datastax.bdp.graph.api.DseGraphInternal
Display stack trace? [yN] y
org.apache.tinkerpop.gremlin.groovy.plugin.RemoteException: org.apache.tinkerpop.gremlin.tinkergraph.structure.TinkerGraph cannot be cast to com.datastax.bdp.graph.api.DseGraphInternal
        at org.apache.tinkerpop.gremlin.console.groovy.plugin.DriverRemoteAcceptor.submit(DriverRemoteAcceptor.java:170)
        at org.apache.tinkerpop.gremlin.console.GremlinGroovysh.execute(GremlinGroovysh.groovy:90)
        at org.codehaus.groovy.tools.shell.Shell.leftShift(Shell.groovy:122)
        at org.codehaus.groovy.tools.shell.ShellRunner.work(ShellRunner.groovy:95)
        at org.codehaus.groovy.tools.shell.InteractiveShellRunner.super$2$work(InteractiveShellRunner.groovy)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:93)
        at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:325)
        at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1212)
        at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.invokeMethodOnSuperN(ScriptBytecodeAdapter.java:132)
        at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.invokeMethodOnSuper0(ScriptBytecodeAdapter.java:152)
        at org.codehaus.groovy.tools.shell.InteractiveShellRunner.work(InteractiveShellRunner.groovy:124)
        at org.codehaus.groovy.tools.shell.ShellRunner.run(ShellRunner.groovy:59)
        at org.codehaus.groovy.tools.shell.InteractiveShellRunner.super$2$run(InteractiveShellRunner.groovy)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:93)
        at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:325)
        at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1212)
        at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.invokeMethodOnSuperN(ScriptBytecodeAdapter.java:132)
        at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.invokeMethodOnSuper0(ScriptBytecodeAdapter.java:152)
        at org.codehaus.groovy.tools.shell.InteractiveShellRunner.run(InteractiveShellRunner.groovy:83)
        at org.codehaus.groovy.vmplugin.v7.IndyInterface.selectMethod(IndyInterface.java:228)
        at org.apache.tinkerpop.gremlin.console.Console.<init>(Console.groovy:174)
        at org.codehaus.groovy.vmplugin.v7.IndyInterface.selectMethod(IndyInterface.java:228)
        at org.apache.tinkerpop.gremlin.console.Console.main(Console.groovy:361)

I also insalled DSE 5.0 on my local machine. Agan, DSE Cassandra seems to work OK, ut when I try to start the Gremlin console I get different errors:

dse gremlin-console

Exception in thread "main" java.lang.NoSuchMethodError: groovy.lang.MetaClassImpl.hasCustomStaticInvokeMethod()Z
    at org.codehaus.groovy.vmplugin.v7.Selector$MethodSelector.chooseMeta(Selector.java:553)
    at org.codehaus.groovy.vmplugin.v7.Selector$MethodSelector.setCallSiteTarget(Selector.java:954)
    at org.codehaus.groovy.vmplugin.v7.IndyInterface.selectMethod(IndyInterface.java:224)
    at org.apache.tinkerpop.gremlin.console.Console.<clinit>(Console.groovy:54)

I can't find much documentation around DSE 5.0 Graph, and nothing at all on dealing with errors like this. Any tips would be very welcome.

You need to create an alias first. Look at the quick start guide to the gremlin console in the DataStax docs — phact, Jul 20 '16 at 12:27
Thanks! That solves the errors inside the Gremlin console on my cloud-based installation. The tutorial is here: https://docs.datastax.com/en/latest-dse/datastax_enterprise/graph/using/QuickStartGremlin.html — Chris Webster, Jul 20 '16 at 12:33
Still don't know why I can't start the Gremlin console on my ,local installation though. — Chris Webster, Jul 20 '16 at 12:34

Datastax DSE 5.0 Graph: Gremlin console not working

0 Answers0