Github user StephanEwen commented on the pull request:
https://github.com/apache/incubator-flink/pull/94#issuecomment-54805389
Sorry for the late answer. This is nice work!
We are also working on a deep integration of shipping results (also
temporary intermediate results) back to the client. This will be a deep
integration, used also for communicating statistics and metrics of intermediate
results. The JobManager will be extended with a BLOB service to move large
binary data (see #107).
Until that effort is done, your patch is a very valuable utility, so it
makes sense to add it.
I would, however, prefer if it was self-contained, only in the output
format. Once a method is in the `DataSet` class, we can hardly remove it from
there any more. Since this is sort of a temporary (few months) workaround, it
would be good to not have specialized methods for it in `DataSet`.
Do you think that is possible?
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