Github user NicoK commented on the issue:
https://github.com/apache/flink/pull/3467
Hi @zhijiangW,
actually, the solution I am working on is to replace the network buffers
parameter by something like "max memory in percent" and "min MB to use". For
this to not create buffer bloat in our network stack, I have started to
implement limited `LocalBufferPool` instances which tune their size based on
the actual number of outgoing and ingoing channels. It is actually not much
more complicated than this and I already started on this in my local branch at
https://github.com/NicoK/flink/tree/flink-4545 - expect a new PR within the
week with more details.
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