Github user NicoK commented on a diff in the pull request:
https://github.com/apache/flink/pull/4533#discussion_r154318828
--- Diff:
flink-runtime/src/main/java/org/apache/flink/runtime/io/network/partition/consumer/RemoteInputChannel.java
---
@@ -378,6 +381,11 @@ public void notifyBufferDestroyed() {
// Nothing to do actually.
}
+ @VisibleForTesting
+ public void increaseCredit(int credit) {
--- End diff --
I think we can live without this method that should never be called outside
the tests (since it modifies state): creating a `BufferResponse` with an
appropriate backlog should yield the same result in the tests
---