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_r351614505
##########
File path:
flink-runtime/src/main/java/org/apache/flink/runtime/rest/handler/job/checkpoints/CheckpointConfigHandler.java
##########
@@ -100,13 +100,15 @@ private static CheckpointConfigInfo
createCheckpointConfigInfo(AccessExecutionGr
retentionPolicy !=
CheckpointRetentionPolicy.NEVER_RETAIN_AFTER_TERMINATION,
retentionPolicy !=
CheckpointRetentionPolicy.RETAIN_ON_CANCELLATION);
+ String stateName =
checkpointCoordinatorConfiguration.getStateBackendName() == null ?
"TEMPORARY_UNKNOWN" : checkpointCoordinatorConfiguration.getStateBackendName();
Review comment:
If we query the rest before the job is running, maybe the
`checkpointCoordinatorConfiguration.getStateBackendName()` will return null
(please see the above comments), so transfer to `TEMPORARY_UNKNOWN` here.
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