Github user NicoK commented on a diff in the pull request:
https://github.com/apache/flink/pull/4552#discussion_r161248402
--- Diff:
flink-runtime/src/main/java/org/apache/flink/runtime/io/network/partition/ResultSubpartitionView.java
---
@@ -52,4 +52,9 @@
boolean isReleased();
Throwable getFailureCause();
+
+ /**
+ * Returns whether the next buffer is event or not.
--- End diff --
`is an event`---
