zhijiangW commented on a change in pull request #11515: [FLINK-16744][task] 
implement channel state persistence for unaligned checkpoints
URL: https://github.com/apache/flink/pull/11515#discussion_r404920180
 
 

 ##########
 File path: 
flink-runtime/src/main/java/org/apache/flink/runtime/checkpoint/channel/ChannelStateWriter.java
 ##########
 @@ -73,10 +73,20 @@
        void addOutputData(long checkpointId, ResultSubpartitionInfo info, int 
startSeqNum, Buffer... data);
 
        /**
-        * Finalize write of channel state for the given checkpoint id.
-        * Must be called after {@link #start(long)} and all of the data of the 
given checkpoint added.
+        * Finalize write of channel state data for the given checkpoint id.
+        * Must be called after {@link #start(long)} and all of the input data 
of the given checkpoint added.
+        * When both {@link #finishInput} and {@link #finishOutput} were called 
the results can be (eventually) obtained
+        * using {@link #getWriteCompletionFuture}
         */
-       void finish(long checkpointId);
 
 Review comment:
   we should also adjust the references of `{@link #finish(long)}` in above 
`addInputData` and `addOutput` descriptions for the commit "[FLINK-16744][task] 
split finish() in ChanStateWrite"

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