klion26 commented on a change in pull request #10344: 
[FLINK-14264][StateBackend][Rest] Expose state backend in checkpoint rest api
URL: https://github.com/apache/flink/pull/10344#discussion_r352644494
 
 

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 File path: 
flink-runtime/src/main/java/org/apache/flink/runtime/jobgraph/tasks/CheckpointCoordinatorConfiguration.java
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 @@ -36,6 +38,8 @@
 
        private static final long serialVersionUID = 2L;
 
+       private String stateBackendName;
 
 Review comment:
   Ahh, got it.
   Maybe we should get the `stateBackendName` from `AccessExecutionGraph` 
directly(add a new function `getStateBackend` in `AccessExecutionGraph`, pass 
the `stateBackendName` into `ArchivedExecutionGraph` when init a new 
`ArchivedExecutionGraph`), what do you think?

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