StefanRRichter commented on a change in pull request #6814:
[FLINK-10423][rocksdb][metrics] rocksdb native metrics monitor
URL: https://github.com/apache/flink/pull/6814#discussion_r224529147
##########
File path:
flink-state-backends/flink-statebackend-rocksdb/src/main/java/org/apache/flink/contrib/streaming/state/RocksDBKeyedStateBackend.java
##########
@@ -606,6 +627,17 @@ private RocksDB openDB(
Preconditions.checkState(1 +
stateColumnFamilyDescriptors.size() == stateColumnFamilyHandles.size(),
"Not all requested column family handles have been
created");
+ if (this.metricOptions.isEnabled()) {
+ this.nativeMetricMonitor = new
RocksDBNativeMetricMonitor(
+ dbRef,
+ rocksDBResourceGuard,
+ metricOptions,
+ operatorMetricGroup
+ );
+
+
this.cancelStreamRegistry.registerCloseable(nativeMetricMonitor);
Review comment:
I think this is not a good way for a clean shutdown. Instead I would suggest
to close this in the `dispose()` method.
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