Github user senorcarbone commented on the pull request:
https://github.com/apache/flink/pull/937#issuecomment-126067262
That would be good ^^
then it's :+1: from me, at least for now.
It's generally good performance-wise to have less serialised states. This
means that we will have a constant number of issued writes to external storage
(== #subtasks). On the other hand this also makes our life harder a bit when it
comes to repartitioning, as you already mentioned we need to revisit this.
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