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

["Robert Metzger (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-19331?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Robert Metzger updated FLINK-19331:
-----------------------------------
    Component/s: API / State Processor

> 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
>          Components: API / State Processor
>    Affects Versions: 1.12.0
>            Reporter: Seth Wiesman
>            Assignee: Seth Wiesman
>            Priority: Major
>              Labels: pull-request-available
>
> 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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