Hello,
Exact semantics for checkpointing/task recovery are still a little
confusing to me after parsing docs: so a few questions.

- What does Flink consider a task failure? Is it any exception that the job
does not handle?

- Do the failure recovery strategies mentioned in
https://ci.apache.org/projects/flink/flink-docs-stable/dev/task_failure_recovery.html
refer
to restarting from the most recent checkpoint?
E.g for fixed-delay recoveries, a fixed number of restarts from a specific
checkpoint are attempted.

- The docs mention the following command to resume from a checkpoint. In
the checkpoint metadata path I have configured, I only see a series of
directories named by hashes:

- 24c8d7a38dd90ca8bd5f04c36d1442ba
    - shared
    - taskowned
- 5d202a0ba04cdc1b917892c1e35d00dc
    - shared
    - taskowned
How do I know which is the most recent checkpoint?

Really appreciate any help. Thank you.

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