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https://issues.apache.org/jira/browse/SPARK-34198?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17364361#comment-17364361
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Yuanjian Li commented on SPARK-34198:
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Based on the discussion in the community, I just changed the title and
description for this Jira. All the major sub-tasks and PRs have been submitted.
> Add RocksDB StateStore implementation
> -------------------------------------
>
> Key: SPARK-34198
> URL: https://issues.apache.org/jira/browse/SPARK-34198
> Project: Spark
> Issue Type: New Feature
> Components: Structured Streaming
> Affects Versions: 3.2.0
> Reporter: L. C. Hsieh
> Priority: Major
>
> Currently Spark SS only has one built-in StateStore implementation
> HDFSBackedStateStore. Actually it uses in-memory map to store state rows. As
> there are more and more streaming applications, some of them requires to use
> large state in stateful operations such as streaming aggregation and join.
> Several other major streaming frameworks already use RocksDB for state
> management. So it is proven to be good choice for large state usage. But
> Spark SS still lacks of a built-in state store for the requirement.
> We would like to explore the possibility to add RocksDB-based StateStore into
> Spark SS.
>
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