Github user yanghua commented on the issue:
https://github.com/apache/flink/pull/5573
@GJL , the before discussion between I and @aljoscha treat the accumulators
as a whole (maybe only me?). Because the pre-existing implementation
`getAccumulatorResultsStringified ` and `getAccumulatorsSerialized ` , so I
took steps along this path and split the stringified and serialized
accumulators.
So the conclusion is : accepting your opinion and taking the each key's
SerializedValue into `UserTaskAccumulator` ?
If yes, I will try to change the code.
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