zhijiangW commented on a change in pull request #10083: 
[FLINK-14472][runtime]Implement back-pressure monitor with non-blocking outputs.
URL: https://github.com/apache/flink/pull/10083#discussion_r342969477
 
 

 ##########
 File path: 
flink-runtime/src/main/java/org/apache/flink/runtime/rest/handler/legacy/backpressure/BackPressureStats.java
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 @@ -21,44 +21,43 @@
 import org.apache.flink.runtime.executiongraph.ExecutionAttemptID;
 
 import java.util.Collections;
-import java.util.List;
 import java.util.Map;
 
 import static org.apache.flink.util.Preconditions.checkArgument;
 
 /**
- * A sample of stack traces for one or more tasks.
+ * Task back pressure stats for one or more tasks.
 
 Review comment:
   Remove prefix `Task`

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