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https://issues.apache.org/jira/browse/YARN-3401?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14382794#comment-14382794
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Junping Du commented on YARN-3401:
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[~sjlee0] and [~Naganarasimha], I think this belongs to prevent of malicious
behaviors. I would suggest to get back to this until we are discussing support
of YARN Security in TimelineService which shouldn't happen very soon.
Just filed YARN-3402 to track security issue for new timeline service.
> [Data Model] users should not be able to create a generic TimelineEntity and
> associate arbitrary type
> -----------------------------------------------------------------------------------------------------
>
> Key: YARN-3401
> URL: https://issues.apache.org/jira/browse/YARN-3401
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: timelineserver
> Reporter: Sangjin Lee
> Assignee: Naganarasimha G R
>
> IIUC it is possible for users to create a generic TimelineEntity and set an
> arbitrary entity type. For example, for a YARN app, the right entity API is
> ApplicationEntity. However, today nothing stops users from instantiating a
> base TimelineEntity class and set the application type on it. This presents a
> problem in handling these YARN system entities in the storage layer for
> example.
> We need to ensure that the API allows only the right type of the class to be
> created for a given entity type.
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