Github user mxm commented on the pull request:
https://github.com/apache/incubator-flink/pull/210#issuecomment-63476823
I changed the code to generate a unique identifier for each call of count
or collect.
@zentol Executing in a lazy fashion could be implemented but would require
additional changes to the API. The methods should then return something like a
LocalDataSet which lets the user retrieve the accumulator result once the job
has been executed.
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