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https://issues.apache.org/jira/browse/TINKERPOP-2365?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Stephen Mallette updated TINKERPOP-2365:
----------------------------------------
Summary: LazyBarrierStrategy adds a NoOpBarrierStep when profile() is
present (was: profile() adds a NoOpBarrierStep)
> LazyBarrierStrategy adds a NoOpBarrierStep when profile() is present
> --------------------------------------------------------------------
>
> Key: TINKERPOP-2365
> URL: https://issues.apache.org/jira/browse/TINKERPOP-2365
> Project: TinkerPop
> Issue Type: Bug
> Components: process
> Affects Versions: 3.3.10
> Reporter: Stephen Mallette
> Priority: Minor
>
> Not sure if this needs to behave like this for any particular reason but:
> {code}
> gremlin> g.V().both().profile()
> ==>Traversal Metrics
> Step Count
> Traversers Time (ms) % Dur
> =============================================================================================================
> TinkerGraphStep(vertex,[]) 1
> 1 0.055 67.30
> VertexStep(BOTH,vertex) 2
> 2 0.012 15.51
> NoOpBarrierStep(2500) 2
> 1 0.014 17.19
> >TOTAL -
> - 0.082 -
> {code}
> the {{NoOpBarrierStep}} doesn't get added unless {{profile()}} is present as
> shown in this {{explain()}}:
> {code}
> gremlin> g.V().both().explain()
> ==>Traversal Explanation
> ========================================================================================
> Original Traversal [GraphStep(vertex,[]),
> VertexStep(BOTH,vertex)]
> ConnectiveStrategy [D] [GraphStep(vertex,[]),
> VertexStep(BOTH,vertex)]
> MatchPredicateStrategy [O] [GraphStep(vertex,[]),
> VertexStep(BOTH,vertex)]
> EarlyLimitStrategy [O] [GraphStep(vertex,[]),
> VertexStep(BOTH,vertex)]
> FilterRankingStrategy [O] [GraphStep(vertex,[]),
> VertexStep(BOTH,vertex)]
> InlineFilterStrategy [O] [GraphStep(vertex,[]),
> VertexStep(BOTH,vertex)]
> IncidentToAdjacentStrategy [O] [GraphStep(vertex,[]),
> VertexStep(BOTH,vertex)]
> AdjacentToIncidentStrategy [O] [GraphStep(vertex,[]),
> VertexStep(BOTH,vertex)]
> RepeatUnrollStrategy [O] [GraphStep(vertex,[]),
> VertexStep(BOTH,vertex)]
> CountStrategy [O] [GraphStep(vertex,[]),
> VertexStep(BOTH,vertex)]
> PathRetractionStrategy [O] [GraphStep(vertex,[]),
> VertexStep(BOTH,vertex)]
> LazyBarrierStrategy [O] [GraphStep(vertex,[]),
> VertexStep(BOTH,vertex)]
> TinkerGraphCountStrategy [P] [GraphStep(vertex,[]),
> VertexStep(BOTH,vertex)]
> TinkerGraphStepStrategy [P] [TinkerGraphStep(vertex,[]),
> VertexStep(BOTH,vertex)]
> ProfileStrategy [F] [TinkerGraphStep(vertex,[]),
> VertexStep(BOTH,vertex)]
> StandardVerificationStrategy [V] [TinkerGraphStep(vertex,[]),
> VertexStep(BOTH,vertex)]
> Final Traversal [TinkerGraphStep(vertex,[]),
> VertexStep(BOTH,vertex)]
> {code}
> unless of course we {{explain()}} the {{profile()}} which seems weird:
> {code}
> gremlin> g.V().both().profile().explain()
> ==>Traversal Explanation
> ==========================================================================================================================================================================================================
> Original Traversal [GraphStep(vertex,[]),
> VertexStep(BOTH,vertex), ProfileSideEffectStep, SideEffectCapStep([~metrics])]
> ConnectiveStrategy [D] [GraphStep(vertex,[]),
> VertexStep(BOTH,vertex), ProfileSideEffectStep, SideEffectCapStep([~metrics])]
> MatchPredicateStrategy [O] [GraphStep(vertex,[]),
> VertexStep(BOTH,vertex), ProfileSideEffectStep, SideEffectCapStep([~metrics])]
> EarlyLimitStrategy [O] [GraphStep(vertex,[]),
> VertexStep(BOTH,vertex), ProfileSideEffectStep, SideEffectCapStep([~metrics])]
> FilterRankingStrategy [O] [GraphStep(vertex,[]),
> VertexStep(BOTH,vertex), ProfileSideEffectStep, SideEffectCapStep([~metrics])]
> InlineFilterStrategy [O] [GraphStep(vertex,[]),
> VertexStep(BOTH,vertex), ProfileSideEffectStep, SideEffectCapStep([~metrics])]
> IncidentToAdjacentStrategy [O] [GraphStep(vertex,[]),
> VertexStep(BOTH,vertex), ProfileSideEffectStep, SideEffectCapStep([~metrics])]
> AdjacentToIncidentStrategy [O] [GraphStep(vertex,[]),
> VertexStep(BOTH,vertex), ProfileSideEffectStep, SideEffectCapStep([~metrics])]
> RepeatUnrollStrategy [O] [GraphStep(vertex,[]),
> VertexStep(BOTH,vertex), ProfileSideEffectStep, SideEffectCapStep([~metrics])]
> CountStrategy [O] [GraphStep(vertex,[]),
> VertexStep(BOTH,vertex), ProfileSideEffectStep, SideEffectCapStep([~metrics])]
> PathRetractionStrategy [O] [GraphStep(vertex,[]),
> VertexStep(BOTH,vertex), ProfileSideEffectStep, SideEffectCapStep([~metrics])]
> LazyBarrierStrategy [O] [GraphStep(vertex,[]),
> VertexStep(BOTH,vertex), NoOpBarrierStep(2500), ProfileSideEffectStep,
> SideEffectCapStep([~metrics])]
> TinkerGraphCountStrategy [P] [GraphStep(vertex,[]),
> VertexStep(BOTH,vertex), NoOpBarrierStep(2500), ProfileSideEffectStep,
> SideEffectCapStep([~metrics])]
> TinkerGraphStepStrategy [P] [TinkerGraphStep(vertex,[]),
> VertexStep(BOTH,vertex), NoOpBarrierStep(2500), ProfileSideEffectStep,
> SideEffectCapStep([~metrics])]
> ProfileStrategy [F] [TinkerGraphStep(vertex,[]), ProfileStep,
> VertexStep(BOTH,vertex), ProfileStep, NoOpBarrierStep(2500), ProfileStep,
> ProfileSideEffectStep, SideEffectCapStep([~metrics]
> )]
> StandardVerificationStrategy [V] [TinkerGraphStep(vertex,[]), ProfileStep,
> VertexStep(BOTH,vertex), ProfileStep, NoOpBarrierStep(2500), ProfileStep,
> ProfileSideEffectStep, SideEffectCapStep([~metrics]
> )]
> Final Traversal [TinkerGraphStep(vertex,[]), ProfileStep,
> VertexStep(BOTH,vertex), ProfileStep, NoOpBarrierStep(2500), ProfileStep,
> ProfileSideEffectStep, SideEffectCapStep([~metrics]
> )]
> {code}
> Seems like this is a bit of a bug in the sense that I would expect
> {{explain()}} and {{profile()}} to examine the same working traversal up to
> the point of that call.
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