Problem with more than 32767 elements

[Pradyumna]

Hello everyone,

I am seeing an issue with more than 32767 elements in a gremlin query. Is that an intentional limit?

Below is a capture of gremlin-console that shows the problem,

Thank you

./gremlin.sh

         \,,,/

         (o o)

-----oOOo-(3)-oOOo-----

plugin activated: tinkerpop.server

plugin activated: tinkerpop.utilities

plugin activated: tinkerpop.tinkergraph

gremlin> graph = TinkerFactory.createModern(); g = graph.traversal()

==>graphtraversalsource[tinkergraph[vertices:6 edges:6], standard]

gremlin> g.V().limit(1).repeat(__.identity()).times(32766).emit().profile().next()

==>Traversal Metrics

Step                                                               Count  Traversers       Time (ms)    % Dur

=============================================================================================================

TinkerGraphStep(vertex,[])                                             2           2           6.127     3.05

RangeGlobalStep(0,1)                                                   1           1           0.165     0.08

RepeatStep([RepeatEndStep],until(loops(32766)),...                 32766       32766         194.924    96.87

  RepeatEndStep                                                    32766       32766         153.935

                                            >TOTAL                     -           -         201.218        -

gremlin> g.V().limit(1).repeat(__.identity()).times(32767).emit().profile().next()

==>Traversal Metrics

Step                                                               Count  Traversers       Time (ms)    % Dur

=============================================================================================================

TinkerGraphStep(vertex,[])                                             2           2           0.336     0.43

RangeGlobalStep(0,1)                                                   1           1           0.449     0.57

RepeatStep([RepeatEndStep],until(loops(32767)),...                 32767       32767          77.937    99.00

  RepeatEndStep                                                    32767       32767          40.675

                                            >TOTAL                     -           -          78.723        -

gremlin> g.V().limit(1).repeat(__.identity()).times(32768).emit().profile().next()

(does not return) 

[Andrea Child]

Hello Pradyumna,

I am also able to reproduce the issue you see with the gremlin console example queries provided on the 3.8-dev branch. After taking a few thread dumps there seems to be an issue with the profile step which is in a continuous loop. It does not seem to be paused on a specific line of code within the profile step. As such this does not look to be an intentional limit of any sort and warrants the creation of a JIRA issue at https://issues.apache.org/jira/projects/TINKERPOP/issues.

Cheers,

Andrea

 

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