[jira] [Created] (FLINK-6309) Memory consumer weights should be calculated in job vertex level

[Shang Yuanchun (Jira)]

Kurt Young created FLINK-6309:
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             Summary: Memory consumer weights should be calculated in job vertex level
                 Key: FLINK-6309
                 URL: https://issues.apache.org/jira/browse/FLINK-6309
             Project: Flink
          Issue Type: Improvement
          Components: Optimizer
            Reporter: Kurt Young


Currently in {{PlanFinalizer}}, we travel the whole job vertexes to calculate the memory consumer weights, and then assign the weights for each job vertex. In a case of a large job graph, e.g. with multiple joins, group reduces, the consumer weights will be high and the usable memory for each job vertex will be very low.
I think it makes more sense to calculate the memory consumer weights in job vertex level (after chaining) to maximize the memory utility.



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