Github user gyfora commented on the pull request:
https://github.com/apache/flink/pull/1239#issuecomment-146486097
Other important thing:
I think it would be very useful to add some extra context information to
the snapshot methods. Something that can be used to identify the operator that
took the snapshot. Maybe a combination of task id + task index.
I am currently trying to implement a sql based backend, and I would really
need to store this information so I can then work with the checkpoint data from
the outside.
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