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https://issues.apache.org/jira/browse/SPARK-45511?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot reassigned SPARK-45511:
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Assignee: Apache Spark
> SPIP: State Data Source - Reader
> --------------------------------
>
> Key: SPARK-45511
> URL: https://issues.apache.org/jira/browse/SPARK-45511
> Project: Spark
> Issue Type: New Feature
> Components: Structured Streaming
> Affects Versions: 4.0.0
> Reporter: Jungtaek Lim
> Assignee: Apache Spark
> Priority: Major
> Labels: SPIP, pull-request-available
>
> State Store has been a black box from the introduction of the stateful
> operator. It has been the “internal” data to the streaming query, and Spark
> does not expose the data outside of the streaming query. There is no
> feature/tool for users to read and modify the content of state stores.
> Specific to the ability to read the state, the lack of feature brings up
> various limitations like following:
> * Users are unable to see the content in the state store, leading to
> inability to debug.
> * Users have to perform some indirect approach on verifying the content of
> the state store in unit tests. The only option they can take is relying on
> the output of the query.
> Given that, we propose to introduce a feature which enables users to read the
> state from the outside of the streaming query.
> SPIP:
> [https://docs.google.com/document/d/1_iVf_CIu2RZd3yWWF6KoRNlBiz5NbSIK0yThqG0EvPY/edit?usp=sharing]
>
>
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