Github user ramkrish86 commented on the issue:
https://github.com/apache/flink/pull/3334
Thanks for the input. I read the code. There are two ways a checkpoint
fails (as per my code understanding). If for some reason checkpointing cannot
be performed we send DeclineCheckpoint message. That is handled by the
Checkpointcoordinator.
Another is if there is an external error in checkpointing and in that case
we call failExternally. Which transitions the state to FAILED and closes all
the watchdog, and cancels the invokable also. Now is the intent to track how
many times this happens and if so track such occurences of failure and then
fail the execution graph?
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