Github user zhijiangW commented on a diff in the pull request: https://github.com/apache/flink/pull/5558#discussion_r170148132 --- Diff: flink-runtime/src/main/java/org/apache/flink/runtime/io/network/partition/consumer/RemoteInputChannel.java --- @@ -337,6 +337,11 @@ public int getSenderBacklog() { return numRequiredBuffers - initialCredit; } + @VisibleForTesting + public boolean isWaitingForFloatingBuffers() { --- End diff -- yes
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