https://issues.apache.org/jira/browse/TINKERPOP-1105
Thank you, Marko On Tuesday, January 26, 2016 at 8:11:03 PM UTC-5, Marko A. Rodriguez wrote: > > Hi David, > > I know why this is happening, but I don't have an easy solution off the > top of my head. Can you please make a JIRA ticket? > > Thank you, > Marko. > > http://markorodriguez.com > > On Jan 26, 2016, at 4:01 PM, David <[email protected] <javascript:>> > wrote: > > Stack traces appear to be similar, so here is one of them: > > gremlin> graph = GraphFactory.open('conf/hadoop/hadoop-gryo.properties') > ==>hadoopgraph[gryoinputformat->gryooutputformat] > gremlin> g = graph.traversal(computer(SparkGraphComputer)) > ==>graphtraversalsource[hadoopgraph[gryoinputformat->gryooutputformat], > sparkgraphcomputer] > gremlin> g.V().out().in().not(__.has('name','ripple')).properties() > java.lang.NullPointerException > Display stack trace? [yN] y > java.lang.NullPointerException > at > org.apache.tinkerpop.gremlin.structure.util.Attachable$Method.getProperty(Attachable.java:236) > at > org.apache.tinkerpop.gremlin.structure.util.Attachable$Method.lambda$get$19(Attachable.java:98) > at > org.apache.tinkerpop.gremlin.structure.util.Attachable$Method$$Lambda$98/1054035701.apply(Unknown > > Source) > at > org.apache.tinkerpop.gremlin.structure.util.Attachable.attach(Attachable.java:63) > at > org.apache.tinkerpop.gremlin.process.computer.traversal.step.map.ComputerResultStep.processNextStart(ComputerResultStep.java:89) > at > org.apache.tinkerpop.gremlin.process.traversal.step.util.AbstractStep.hasNext(AbstractStep.java:140) > at > org.apache.tinkerpop.gremlin.process.traversal.util.DefaultTraversal.hasNext(DefaultTraversal.java:147) > at > org.apache.tinkerpop.gremlin.console.Console$_closure3.doCall(Console.groovy:205) > at sun.reflect.GeneratedMethodAccessor74.invoke(Unknown Source) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) > at java.lang.reflect.Method.invoke(Method.java:497) > at > org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:93) > at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:325) > at > org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeMethod(ClosureMetaClass.java:294) > at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1019) > at > org.codehaus.groovy.tools.shell.Groovysh.setLastResult(Groovysh.groovy:443) > at > org.codehaus.groovy.vmplugin.v7.IndyInterface.selectMethod(IndyInterface.java:218) > at > org.codehaus.groovy.tools.shell.Groovysh.execute(Groovysh.groovy:187) > 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.GeneratedMethodAccessor72.invoke(Unknown Source) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) > at java.lang.reflect.Method.invoke(Method.java:497) > 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:1210) > 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:497) > 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:1210) > 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:218) > at > org.apache.tinkerpop.gremlin.console.Console.<init>(Console.groovy:144) > at > org.codehaus.groovy.vmplugin.v7.IndyInterface.selectMethod(IndyInterface.java:218) > at > org.apache.tinkerpop.gremlin.console.Console.main(Console.groovy:305) > gremlin> > g.V().out('created').in('created').not(__.has('name','ripple')).values() > ==>josh > ==>josh > ==>josh > ==>josh > ==>32 > ==>32 > ==>32 > ==>32 > ==>marko > ==>marko > ==>marko > ==>29 > ==>29 > ==>29 > ==>peter > ==>peter > ==>peter > ==>35 > ==>35 > ==>35 > gremlin> > > > On Tuesday, January 26, 2016 at 5:38:30 PM UTC-5, Marko A. Rodriguez wrote: >> >> Huh, >> >> I suspect its using Groovy meta-class properties(), not >> Traversal.properties(). >> >> gremlin> "test".properties >> ==>class=class java.lang.String >> ==>bytes=[B@5115f590 >> ==>empty=false >> >> >> However, this works: >> >> gremlin> g.V().out().properties() >> ==>vp[name->lop] >> ==>vp[lang->java] >> ==>vp[name->vadas] >> >> >> Yea, please provide a stack trace so I can see more information. >> >> Thanks, >> Marko. >> >> http://markorodriguez.com >> >> On Jan 26, 2016, at 3:29 PM, David <[email protected]> wrote: >> >> Hi, >> >> I have TinkerPop 3.1.1-SNAPSHOT installed running with Spark 1.5.2. >> >> I am getting NullPointer exceptions on a few of the queries I tried. >> >> It might be that I do not fully understand the limitations of OLAP >> Gremlin mentioned here: >> >> http://tinkerpop.apache.org/docs/3.1.0-incubating/#distributed-gremlin-gotchas >> >> "properties" seems to be the common theme. >> >> I can attach a stack trace if needed, but wanted advice on the validity >> in the OLAP >> realm of the queries returning Null Pointers first. >> >> Thank you, >> >> >> >> ........ >> gremlin> g.V().propertyMap() >> ==>[name:[vp[name->josh]], age:[vp[age->32]]] >> ==>[name:[vp[name->marko]], age:[vp[age->29]]] >> ==>[name:[vp[name->peter]], age:[vp[age->35]]] >> ==>[name:[vp[name->lop]], lang:[vp[lang->java]]] >> ==>[name:[vp[name->ripple]], lang:[vp[lang->java]]] >> ==>[name:[vp[name->vadas]], age:[vp[age->27]]] >> gremlin> g.V().out().out().not(__.has('name','ripple')).properties() >> java.lang.NullPointerException >> Display stack trace? [yN] n >> gremlin> g.V().out().in().not(__.has('name','ripple')).properties() >> java.lang.NullPointerException >> Display stack trace? [yN] n >> gremlin> >> g.V().out('created').in('created').not(__.has('name','ripple')).properties() >> >> java.lang.NullPointerException >> Display stack trace? [yN] n >> gremlin> >> g.V().out('created').in('created').not(__.has('name','ripple')).propertyMap() >> ==>[name:[vp[name->josh]], age:[vp[age->32]]] >> ==>[name:[vp[name->josh]], age:[vp[age->32]]] >> ==>[name:[vp[name->josh]], age:[vp[age->32]]] >> ==>[name:[vp[name->josh]], age:[vp[age->32]]] >> ==>[name:[vp[name->marko]], age:[vp[age->29]]] >> ==>[name:[vp[name->marko]], age:[vp[age->29]]] >> ==>[name:[vp[name->marko]], age:[vp[age->29]]] >> ==>[name:[vp[name->peter]], age:[vp[age->35]]] >> ==>[name:[vp[name->peter]], age:[vp[age->35]]] >> ==>[name:[vp[name->peter]], age:[vp[age->35]]] >> gremlin> >> g.V().out('created').in('created').not(__.has('name','ripple')).values() >> ==>josh >> ==>josh >> ==>josh >> ==>josh >> ==>32 >> ==>32 >> ==>32 >> ==>32 >> ==>marko >> ==>marko >> ==>marko >> ==>29 >> ==>29 >> ==>29 >> ==>peter >> ==>peter >> ==>peter >> ==>35 >> ==>35 >> ==>35 >> gremlin> g.V().properties('name').count() >> ==>6 >> >> >> >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Gremlin-users" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/gremlin-users/ce9eef3b-4777-467f-b3ee-21e05f310da0%40googlegroups.com >> >> <https://groups.google.com/d/msgid/gremlin-users/ce9eef3b-4777-467f-b3ee-21e05f310da0%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> For more options, visit https://groups.google.com/d/optout. >> >> >> > -- > You received this message because you are subscribed to the Google Groups > "Gremlin-users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected] <javascript:>. > To view this discussion on the web visit > https://groups.google.com/d/msgid/gremlin-users/d2185353-a507-49ba-9764-8d059054a16e%40googlegroups.com > > <https://groups.google.com/d/msgid/gremlin-users/d2185353-a507-49ba-9764-8d059054a16e%40googlegroups.com?utm_medium=email&utm_source=footer> > . > For more options, visit https://groups.google.com/d/optout. > > >
