Myasuka commented on a change in pull request #15119:
URL: https://github.com/apache/flink/pull/15119#discussion_r596863568
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File path:
flink-runtime/src/main/java/org/apache/flink/runtime/state/AbstractKeyedStateBackend.java
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@@ -289,8 +297,11 @@ public KeyGroupRange getKeyGroupRange() {
stateDescriptor.initializeSerializerUnlessSet(executionConfig);
}
kvState =
- TtlStateFactory.createStateAndWrapWithTtlIfEnabled(
- namespaceSerializer, stateDescriptor, this,
ttlTimeProvider);
+ LatencyTrackingStateFactory.trackLatencyIfEnabled(
+ TtlStateFactory.createStateAndWrapWithTtlIfEnabled(
+ namespaceSerializer, stateDescriptor,
this, ttlTimeProvider),
+ stateDescriptor,
+ latencyTrackingStateConfig);
Review comment:
As we already have a `ChangeLogStateBackend` to delegate original keyed
state backend, I think it might be a bit too much encapsulated to delegate
again.
However, I think your idea also inspires me as we could also let operator
state could be tracked if we introduce another `DelegatingStateBackend` here.
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