Github user zentol commented on the pull request:
https://github.com/apache/incubator-flink/pull/210#issuecomment-63479651
why additional changes? you can already retrieve the accumulators by using
the JobExecutionResult.
the only necessary change i see is removing the `execute()` within
`collect()` and `count()`, and now that you generate the ID's yourself
returning the ID, so the accumulators can be accessed later.
```
B = A.map(X);
String id1 = B.map(Y).collect();
String id2 = B.map(Z).collect();
JobExecutionResult jre = env.execute()
List l1 = jre.getAccumulatorResult(id1);
List l2 = jre.getAccumulatorResult(id2);
<some user code using l1 & l2>
```
why would this not be sufficient?
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