Sangjin Lee created YARN-3401:
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Summary: [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
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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