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Posted to dev@kafka.apache.org by "Guozhang Wang (JIRA)" <ji...@apache.org> on 2016/05/20 02:28:13 UTC

[jira] [Created] (KAFKA-3735) RocksDB objects needs to be disposed after usage

Guozhang Wang created KAFKA-3735:
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             Summary: RocksDB objects needs to be disposed after usage
                 Key: KAFKA-3735
                 URL: https://issues.apache.org/jira/browse/KAFKA-3735
             Project: Kafka
          Issue Type: Bug
          Components: streams
            Reporter: Guozhang Wang
            Assignee: Guozhang Wang


The RocksDB JNI interface {{RocksObject}} has a dispose() function which need to be explicitly triggered after it is not reused, otherwise GC may not be able to de-reference it off-heap and hence effective lead to memory leak. See: https://github.com/facebook/rocksdb/issues/752#issuecomment-146511412

We need to make sure all library-controlled RocksDB objects are disposed after usage, and also indicate users to {{close}} those out-of-control objects.



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