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https://issues.apache.org/jira/browse/ATLAS-2092?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16148612#comment-16148612
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Graham Wallis commented on ATLAS-2092:
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OK - seems to have worked this time - sorry about that.
> Failures following concurrent updates
> -------------------------------------
>
> Key: ATLAS-2092
> URL: https://issues.apache.org/jira/browse/ATLAS-2092
> Project: Atlas
> Issue Type: Bug
> Components: atlas-core
> Reporter: Graham Wallis
> Attachments: Investigations and findings relating to concurrent
> updates in Atlas.pdf
>
>
> There is a race condition that causes duplication of schema vertices as a
> result of concurrent graph updates. This in turn leads to failure of queries
> that specify a type such as an edge label used in an attribute that
> references another entity. This problem is known to affect Atlas entity refs
> – which create graph edges that use edge label schema vertices. It is likely
> that it also affects other types in Atlas.
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