Github user koeninger commented on the pull request:
https://github.com/apache/spark/pull/9597#issuecomment-156290949
https://github.com/koeninger/kafka-exactly-once/blob/master/blogpost.md#hasoffsetranges
The 1:1 correspondence is also mentioned in the spark docs Kafka
integration guide
On Nov 12, 2015 6:46 PM, "Saisai Shao" <[email protected]> wrote:
> @koeninger <https://github.com/koeninger> , can you please point out in
> which scenario people will use this 1:1 guarantee, how people use this 1:1
> restriction?
>
> Actually I saw some users are complaining why stage is still running even
> without data injectedï¼that makes their dynamic allocation fail to ramp
down
> executors. That's the point why I submit this PR.
>
> â
> Reply to this email directly or view it on GitHub
> <https://github.com/apache/spark/pull/9597#issuecomment-156282327>.
>
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