Github user NicoK commented on a diff in the pull request: https://github.com/apache/flink/pull/4533#discussion_r153263139 --- Diff: flink-runtime/src/main/java/org/apache/flink/runtime/io/network/netty/CreditBasedClientHandler.java --- @@ -274,4 +313,49 @@ private void decodeBufferOrEvent(RemoteInputChannel inputChannel, NettyMessage.B bufferOrEvent.releaseBuffer(); } } + + private void writeAndFlushNextMessageIfPossible(Channel channel) { --- End diff -- Please add some javadoc with a hint how all `inputChannelsWithCredit` will be handled, i.e. one is written immediately, following ones after successful writes.
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