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https://issues.apache.org/jira/browse/SPARK-12244?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tathagata Das updated SPARK-12244:
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Priority: Blocker (was: Major)
> Rename trackStateByKey to mapWithState
> --------------------------------------
>
> Key: SPARK-12244
> URL: https://issues.apache.org/jira/browse/SPARK-12244
> Project: Spark
> Issue Type: Bug
> Components: Streaming
> Reporter: Tathagata Das
> Assignee: Tathagata Das
> Priority: Blocker
>
> Based on feedback from early users and personal experience attempting to
> explain it, the name trackStateByKey had two problem.
> - "trackState" is a completely new term which really does not give any
> intuition on what the operation is
> - the resultant data stream of objects returned by the function is called in
> docs as the "emitted" data for the lack of a better.
> "mapWithState" makes sense because the API is like a mapping function like
> (Key, Value) => T with State as an additional parameter. The resultant data
> stream is "mapped data". So both problems are solved.
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