Fix memory leak in the FluxMessageChannel
#8622
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The `FluxMessageChannel` can subscribe to any volatile `Publisher`. For example, we can call Reactor Kafka `Sender.send()` for input data and pass its result to the `FluxMessageChannel` for on demand subscription. These publishers are subscribed in the `FluxMessageChannel` and their `Disposable` is stored in the internal `Disposable.Composite` which currently only cleared on `destroy()` * Extract `Disposable` from those internal `subscribe()` calls into an `AtomicReference`. * Use this `AtomicReference` in the `doOnTerminate()` to remove from the `Disposable.Composite` and `dispose()` when such a volatile `Publisher` is completed **Cherry-pick to `6.0.x` & `5.5.x`**
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Forgot to mention : it might not cherry-pick clean . So, let me know and I’ll figure out the change for those versions ! |
garyrussell
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May 15, 2023
garyrussell
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The `FluxMessageChannel` can subscribe to any volatile `Publisher`. For example, we can call Reactor Kafka `Sender.send()` for input data and pass its result to the `FluxMessageChannel` for on demand subscription. These publishers are subscribed in the `FluxMessageChannel` and their `Disposable` is stored in the internal `Disposable.Composite` which currently only cleared on `destroy()` * Extract `Disposable` from those internal `subscribe()` calls into an `AtomicReference`. * Use this `AtomicReference` in the `doOnTerminate()` to remove from the `Disposable.Composite` and `dispose()` when such a volatile `Publisher` is completed **Cherry-pick to `6.0.x` & `5.5.x`**
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...and cherry-picked to 6.0.x as 485aa2a Please back-port to 5.5.x - conflicts. |
artembilan
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May 15, 2023
The `FluxMessageChannel` can subscribe to any volatile `Publisher`. For example, we can call Reactor Kafka `Sender.send()` for input data and pass its result to the `FluxMessageChannel` for on demand subscription. These publishers are subscribed in the `FluxMessageChannel` and their `Disposable` is stored in the internal `Disposable.Composite` which currently only cleared on `destroy()` * Extract `Disposable` from those internal `subscribe()` calls into an `AtomicReference`. * Use this `AtomicReference` in the `doOnTerminate()` to remove from the `Disposable.Composite` and `dispose()` when such a volatile `Publisher` is completed **Cherry-pick to `6.0.x` & `5.5.x`** # Conflicts: # spring-integration-core/src/main/java/org/springframework/integration/channel/FluxMessageChannel.java
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... and back-ported to |
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The
FluxMessageChannelcan subscribe to any volatilePublisher. For example, we can call Reactor KafkaSender.send()for input data and pass its result to theFluxMessageChannelfor on demand subscription.These publishers are subscribed in the
FluxMessageChanneland theirDisposableis stored in the internalDisposable.Compositewhich currently only cleared ondestroy()Disposablefrom those internalsubscribe()calls into anAtomicReference.AtomicReferencein thedoOnTerminate()to remove from theDisposable.Compositeanddispose()when such a volatilePublisheris completedCherry-pick to
6.0.x&5.5.x