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From Márton Balassi <balassi.mar...@gmail.com>
Subject Re: Does DataSet job also use Barriers to ensure "exactly once."?
Date Thu, 09 Jul 2015 12:48:25 GMT
As Kostas mentioned the failure mechanisms for streaming and batch
processing are different, but you can expect exactly once processing
guarantees from both of them.



On Thu, Jul 9, 2015 at 2:43 PM, 马国维 <maguowei@outlook.com> wrote:

> hi, everyoneThe doc say Flink Streaming use "Barriers" to  ensure
> "exactly once."Does the DataSet job use the same mechanism to ensue
> "exactly once"  if a map task is failed?thanks
>

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