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stephen mallette commented on TINKERPOP-1461:
---------------------------------------------
Just for fun, going on the hint marko left in the previous comment, i made the
{{Element}} reference non-transient. It fixed the immediate error, but then
spark got made further down the line in the {{MasterExecutor}} - something
weird with hashcodes going on maybe as traversers aren't being removed properly
from the {{toProcessTraversers}} iterator. Anyway, just thought I'd give it a
try to see if it was a simple fix.
> StarGraph has bad detach/attach logic for properties.
> -----------------------------------------------------
>
> Key: TINKERPOP-1461
> URL: https://issues.apache.org/jira/browse/TINKERPOP-1461
> Project: TinkerPop
> Issue Type: Bug
> Components: hadoop, process, structure
> Affects Versions: 3.1.4, 3.2.2
> Reporter: Marko A. Rodriguez
> Assignee: stephen mallette
> Priority: Major
>
> The following traversal breaks with a {{NullPointerException}} on
> {{SparkGraphComputer}}.
> {code}
> g.V().as("a").properties().select("a").outE().properties("skill").as("b").dedup().select("b").by(__.value()));
> {code}
> I believe it has to do with detachment in {{Path}}-data.
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