[jira] [Created] (SPARK-36619) Iterators on prefix scan in RocksDB are not cleaned up unless aborting

["Jungtaek Lim (Jira)" <ji...@apache.org>]

Jungtaek Lim created SPARK-36619:
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             Summary: Iterators on prefix scan in RocksDB are not cleaned up unless aborting
                 Key: SPARK-36619
                 URL: https://issues.apache.org/jira/browse/SPARK-36619
             Project: Spark
          Issue Type: Bug
          Components: Structured Streaming
    Affects Versions: 3.2.0
            Reporter: Jungtaek Lim


In RocksDB state store provider implementation, we leverage iterators on prefix scan, which are being closed in rollback() method.

While this works now for session window since state store instance in read physical plan will always call abort, it could bring correctness issue for stateful operator which doesn't instantiate two different physical plans on read and write.

We should make sure these iterators get closed to let these iterators don't affect multiple micro-batches (plays as side-effect).



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