Hi,
I am part of a team that is building a desktop Java app that uses an embedded Orient DB. We are using OrientDB v3.0.22 and Gremlin v3.4.0.
We are trying to improve a complex Gremlin query that is filtering on a grandparent vertex property.
Is it possible to create indices that can improve the performance of traversals to grandparent vertices?
What would be the best way for me to share our current Schema and the performance issues of the current query?
Running the Gremlin profile() method returns the following:
Traversal Metrics
Step Count Traversers Time (ms) % Dur
=============================================================================================================
OrientGraphStep(vertex,[~label.eq(VisitV)])@[vi... 1430 1430 6,123 0,17
VertexStep(IN,[URL_VisitE],vertex) 1434 1434 14,439 0,39
HasStep([isIgnored.eq(false)]) 1434 1434 3,321 0,09
TraversalFilterStep([VertexStep(IN,[URLType_URL... 1110 1110 93,077 2,51
VertexStep(IN,[URLType_URLE],vertex) 1110 1110 22,680
HasStep([isIgnored.eq(false)]) 1110 1110 14,943
NotStep([VertexStep(IN,[EntityType_EntityType... 53,926
VertexStep(IN,[EntityType_EntityTypeE],edge) 40,565
SelectOneStep(last,visit) 1110 1110 1,900 0,05
NoOpBarrierStep(2500) 1110 1107 0,890 0,02
VertexStep(OUT,[Visit_EntityE],vertex) 73510 73473 357,917 9,66
NoOpBarrierStep(2500) 73510 60165 34,957 0,94
HasStep([isIgnored.eq(false)]) 63213 60140 141,988 3,83
TraversalFilterStep([VertexStep(IN,[EntityType_... 30567 27859 2941,098 79,37
VertexStep(IN,[EntityType_EntityE],vertex) 62697 62697 1605,033
HasStep([~id.eq(#101:2)]) 1284,226
DedupGlobalStep 20743 20743 13,861 0,37
DedupGlobalStep 20743 20743 9,309 0,25
OrderGlobalStep([[[CoalesceStep([[PropertiesSte... 41 41 81,576 2,20
CoalesceStep([[PropertiesStep([typeCnt],value... 20743 20743 52,157
PropertiesStep([typeCnt],value) 20743 20743 38,964
RangeGlobalStep(0,40) 40 40 0,118 0,00
ProjectStep([vertex, type, tags],[identity, [Ve... 40 40 4,831 0,13
VertexStep(IN,[EntityType_EntityE],vertex) 40 40 0,280
NotStep([VertexStep(OUT,[EntityType_EntityTyp... 40 40 1,514
VertexStep(OUT,[EntityType_EntityTypeE],ver... 1,469
VertexStep(OUT,[Entity_TagE],vertex) 1,483
IdStep 1,323
FoldStep 40 40 0,029
>TOTAL - - 3705,412 -