Github user mxm commented on the pull request:
https://github.com/apache/flink/pull/934#issuecomment-125561321
All in all, nice work @kl0u. Do you think we could change this pull request
such that we can handle "small/large" or "message/blobcached" accumulators more
transparently? It would be great if we encapsulated the two types within one
message and only have one method `getUserAccumulators` to retrieve both types.
The internal logic could be handled by either the `AccumulatorRegistry` or the
`AccumulatorSnapshot` class. That would make the code easier to understand and
remove some code from the JobManager and ExecutionGraph classes.
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