Github user zhijiangW commented on a diff in the pull request: https://github.com/apache/flink/pull/4533#discussion_r144186213 --- Diff: flink-runtime/src/main/java/org/apache/flink/runtime/io/network/netty/CreditBasedClientHandler.java --- @@ -272,4 +316,53 @@ private void decodeBufferOrEvent(RemoteInputChannel inputChannel, NettyMessage.B bufferOrEvent.releaseBuffer(); } } + + private void writeAndFlushNextMessageIfPossible(Channel channel) { + if (channelError.get() != null) { + return; + } + + if (channel.isWritable()) { --- End diff -- I guess you suggest to separate this PR into some smaller ones?
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