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From Aljoscha Krettek <aljos...@apache.org>
Subject Re: multiple consumer of intermediate data set
Date Mon, 13 Mar 2017 15:15:27 GMT
For context, this is from the Flink doc:

I think Ufuk (cc-ed) could know more about this>

On Mon, Mar 13, 2017, at 05:42, 윤형덕 wrote:

> Hi All,


> figure1

> https://ci.apache.org/projects/flink/flink-docs-release-1.2/fig/job_and_execution_graph.svg

> as we can see in figure1, JobVertex(B) has two consumer( JobVertex(C)
> and JobVertex(D) )
> and accordingly Intermediate Data Set of JobVertex(B) has two
> consumer( JobVertex(C) and JobVertex(D) )
> but in case of JobVertex(A), though it has two consumer( JobVertex(B)
> and JobVertex(D) ) same as JobVertex(B)
> it has two separate intermediates data set and each intermediate data
> set has one consumer.
> i couldn't understand why... for me it looks same case but why one has
> one Intermediate Data Set and another has two?
> could anyone explain what is difference between JobVertex(A) and
> JobVertex(B)?


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