Yu Li created FLINK-14926:
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Summary: Make sure no resource leak of RocksObject
Key: FLINK-14926
URL: https://issues.apache.org/jira/browse/FLINK-14926
Project: Flink
Issue Type: Sub-task
Components: Runtime / State Backends
Affects Versions: 1.9.1, 1.8.2, 1.7.2, 1.6.4
Reporter: Yu Li
When investigating FLINK-14484 to allow setting {{WriteBufferManager}} via
options, we find it necessary to supply a {{close}} method in
{{OptionsFactory}} to make sure resources configured in options like
{{WriteBufferManager}} could/would be released.
What's more, we're having potential risk of resource leak in
{{PredefinedOptions}} such as the created [BloomFilter
instance|https://github.com/apache/flink/blob/e14bd50fed42e89674ba9d01a231d5c5e59f490c/flink-state-backends/flink-statebackend-rocksdb/src/main/java/org/apache/flink/contrib/streaming/state/PredefinedOptions.java#L155]
is never closed (regression caused by FLINK-7220 changes), and we should also
fix this and add a {{close}} method in {{PredefinedOptions}}
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