sjwiesman commented on a change in pull request #13797:
URL: https://github.com/apache/flink/pull/13797#discussion_r562862511



##########
File path: 
flink-streaming-java/src/main/java/org/apache/flink/streaming/api/graph/StreamGraphGenerator.java
##########
@@ -328,6 +329,7 @@ private void 
setBatchStateBackendAndTimerService(StreamGraph graph) {
         if (useStateBackend) {
             LOG.debug("Using BATCH execution state backend and timer 
service.");
             graph.setStateBackend(new BatchExecutionStateBackend());
+            graph.setCheckpointStorage(new BatchExecutionCheckpointStorage());

Review comment:
       This was in the follow up PR. This is the weird space where we are 
getting close the public API. I have backported `graph.setCheckpointStorage` on 
line 303ish but not setting the instance variable `checkpointStorage` that I 
have left for the follow up because it involves modifying 
`StreamExecutionEnvironment`. 




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