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Reynold Xin commented on SPARK-34198: ------------------------------------- I don't know the intricate details of it but I suspect it's a different one because it existed long before those two. > Add RocksDB StateStore as external module > ----------------------------------------- > > 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 > Assignee: 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. For the concern about adding RocksDB as a direct dependency, our > plan is to add this StateStore as an external module first. -- This message was sent by Atlassian Jira (v8.3.4#803005) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org