[jira] [Created] (FLINK-19331) State processor api has native resouce leak when working with RocksDB

["Seth Wiesman (Jira)" <ji...@apache.org>]

Seth Wiesman created FLINK-19331:
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             Summary: State processor api has native resouce leak when working with RocksDB
                 Key: FLINK-19331
                 URL: https://issues.apache.org/jira/browse/FLINK-19331
             Project: Flink
          Issue Type: Bug
            Reporter: Seth Wiesman
            Assignee: Seth Wiesman


State processor api uses AbstractStateBackend#getKeys and AbstractStateBackend#getKeysAndNamespaces to iterate over keys and namespaces in a savepoint. These methods return java.util.stream.Stream. The RocksDBKeyedStateBackend implemention of these methods use streams onClose callback to free native resources. 

However, spa eagerly turns this stream into an iterator. This causes the onClose method to be discarded leading to a native resource leak. This can lead to a segmentation fault when multiple spa jobs are submitted to the same session cluster. 



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