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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