You are viewing a plain text version of this content. The canonical link for it is here.

Posted to issues@spark.apache.org by "Tathagata Das (JIRA)" <ji...@apache.org> on 2015/12/09 21:39:10 UTC

[jira] [Created] (SPARK-12244) Rename trackStateByKey to mapWithState

Tathagata Das created SPARK-12244:
-------------------------------------

             Summary: 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


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.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscribe@spark.apache.org
For additional commands, e-mail: issues-help@spark.apache.org