yanghua commented on a change in pull request #7571: [FLINK-10724] Refactor 
failure handling in check point coordinator
URL: https://github.com/apache/flink/pull/7571#discussion_r276163142
 
 

 ##########
 File path: 
flink-runtime/src/main/java/org/apache/flink/runtime/checkpoint/PendingCheckpoint.java
 ##########
 @@ -101,7 +100,7 @@
        private final CheckpointStorageLocation targetLocation;
 
        /** The promise to fulfill once the checkpoint has been completed. */
-       private final CompletableFuture<CompletedCheckpoint> 
onCompletionPromise;
+       private final CompletableFuture<CheckpointExecutionResult> 
onCompletionPromise;
 
 Review comment:
   I still think one stage is represented in class name (consider the two 
keywords `Trigger` and `Decline` in `checkpoint` package). However, another 
stage is just represented in the code. It is not a good design. I think a good 
design is that after we view a package of a module, we can learn about its 
general structure.

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