rkhachatryan commented on a change in pull request #8693:
URL: https://github.com/apache/flink/pull/8693#discussion_r427263066
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File path:
flink-streaming-java/src/main/java/org/apache/flink/streaming/runtime/tasks/SubtaskCheckpointCoordinatorImpl.java
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@@ -142,6 +187,13 @@ public void checkpointState(
// We generally try to emit the checkpoint barrier as soon as
possible to not affect downstream
// checkpoint alignments
+ // Step (0): Record the last triggered checkpointId.
+ lastCheckpointId = metadata.getCheckpointId();
Review comment:
It can also be triggered through RPC (for sources).
I agree that it shouldn't be possible now, but I think it's good to have
such a guard or check to protect against bugs or changes.
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