[jira] [Closed] (TINKERPOP-1830) Race condition in Tinkergraph index creation

["stephen mallette (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/TINKERPOP-1830?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

stephen mallette closed TINKERPOP-1830.
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    Resolution: Fixed

> Race condition in Tinkergraph index creation 
> ---------------------------------------------
>
>                 Key: TINKERPOP-1830
>                 URL: https://issues.apache.org/jira/browse/TINKERPOP-1830
>             Project: TinkerPop
>          Issue Type: Bug
>          Components: tinkergraph
>    Affects Versions: 3.3.0, 3.2.6
>            Reporter: Michael Pollmeier
>            Assignee: Michael Pollmeier
>            Priority: Minor
>             Fix For: 3.2.7, 3.3.1
>
>
> My colleage Fabian Yamaguchi <fa...@shiftleft.io> discovered a race condition in tinkergraph's index creation. He fixed it by simply replacing `parallelStream` with `stream`. Quoting his analysis:
> > So, reading the code, you see that this.put is called in parallel, but that method seems to contain a race as get is called on the index, checked for null, and a subsequent write is performed. It still seems like using stream here fixes the problem we've been seeing, and the performance hit is not significant.



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