[jira] [Commented] (TINKERPOP-2008) GraphML import / export causing duplicated edge IDs

["Svante Schubert (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/TINKERPOP-2008?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16544688#comment-16544688 ] 

Svante Schubert commented on TINKERPOP-2008:
--------------------------------------------

Here the query: 

graph = TinkerGraph.open()
graph.io(IoCore.graphml()).readGraph("f:" + File.separator + "tmp" + File.separator + "table_table.graphml");
g = graph.traversal()
g.V().has('label', "EPSILON").as('epsilonV').inE().as('e1').outV().
 where(__.outE().count().is(eq(2))).as('choiceV'). 
 outE().where(neq('e1')).as('e2').inV().as('optionalV').
 select('choiceV').inE().as('srcE').outV().as('srcV').
 addE('optional').to('optionalV').as('newE').
 sideEffect(select('srcE').properties().unfold().as('p').
 select('newE').property(select('p').key(), select('p').value())).
 union(select('srcE').drop(),
 select('e1').drop(),
 select('e2').drop(),
 select('epsilonV').drop(),
 select('choiceV').drop())
graph.io(IoCore.graphml()).writeGraph("f:" + File.separator + "tmp" + File.separator + "output__in_table-table_graphml.graphml");

Another guess: 
Was the ID also being copied during property copying? But why does it occur only with GraphML import?

> GraphML import / export causing duplicated edge IDs
> ---------------------------------------------------
>
>                 Key: TINKERPOP-2008
>                 URL: https://issues.apache.org/jira/browse/TINKERPOP-2008
>             Project: TinkerPop
>          Issue Type: Bug
>    Affects Versions: 3.3.3
>            Reporter: Svante Schubert
>            Priority: Major
>         Attachments: input_table_table.graphml, input_table_table.kryo, output__in_table-table_graphml.graphml, output__in_table-table_kyro.graphml
>
>
> I could only reproduce the problem of duplicated IDs in the graph output after a query on the Gremlin console if it was a larger/complex input file and only if both GraphML import and export were being used.
>  If I loaded the file as identical Gryo file the export was without duplication.
> I assume there are some thresholds/memory dumps where you might compare the RTM.
> There 7 edges with duplicate IDs in the following lines of the attached file 
>  'output__in_table-table_graphml.graphml'
> Line 736: Duplicate unique value [370] declared for identity constraint "edge_id_unique" of element "graph".
>  Line 758: Duplicate unique value [374] declared for identity constraint "edge_id_unique" of element "graph".
>  Line 783: Duplicate unique value [378] declared for identity constraint "edge_id_unique" of element "graph".
>  Line 797: Duplicate unique value [382] declared for identity constraint "edge_id_unique" of element "graph".
>  Line 818: Duplicate unique value [386] declared for identity constraint "edge_id_unique" of element "graph".
>  Line 854: Duplicate unique value [390] declared for identity constraint "edge_id_unique" of element "graph".
>  Line 887: Duplicate unique value [400] declared for identity constraint "edge_id_unique" of element "graph".
> In addition, the problem is related to the query. If I load and save the Graph immediately no edge problem occurs.
> See mail thread: https://groups.google.com/forum/#!searchin/gremlin-users/svante%7Csort:date/gremlin-users/P8MdzzlFtng/vYqYlukJAgAJ
> {quote}\,,,/
>  (o o)
> -----oOOo-(3)-oOOo-----
> plugin activated: tinkerpop.server
> plugin activated: tinkerpop.utilities
> plugin activated: tinkerpop.tinkergraph
> gremlin> graph = TinkerGraph.open()
> ==>tinkergraph[vertices:0 edges:0]
> gremlin> graph.io(IoCore.graphml()).readGraph("f:" + File.separator + "tmp" + File.separator + "table_table.graphml");
> ==>null
> gremlin> g = graph.traversal()
> ==>graphtraversalsource[tinkergraph[vertices:184 edges:183], standard]
> gremlin> g.V().has('label', "EPSILON").as('epsilonV').inE().as('e1').outV().
> ......1> where(__.outE().count().is(eq(2))).as('choiceV').
> ......2> outE().where(neq('e1')).as('e2').inV().as('optionalV').
> ......3> select('choiceV').inE().as('srcE').outV().as('srcV').
> ......4> addE('optional').to('optionalV').as('newE').
> ......5> sideEffect(select('srcE').properties().unfold().as('p').
> ......6> select('newE').property(select('p').key(), select('p').value())).
> ......7> union(select('srcE').drop(),
> ......8> select('e1').drop(),
> ......9> select('e2').drop(),
> .....10> select('epsilonV').drop(),
> .....11> select('choiceV').drop())
> gremlin> graph.io(IoCore.graphml()).writeGraph("f:" + File.separator + "tmp" + File.separator + "output__in_table-table_graphml.graphml");
> ==>null
> {quote}



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