Github user StephanEwen commented on the issue: https://github.com/apache/flink/pull/3721 Okay, taking a step back. Looking through the code some more, the internal arithmetric should certainly stay in bytes. However, bytes are tedious to configure. I suggest to add support to the configuration to interpret memory units, so that we can configure values via - 512m - 10 kb - ... I have started some utility here: https://github.com/StephanEwen/incubator-flink/tree/mem_size That means that we would keep the PR in this form and add memory configuration parsing as a followup.
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