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Posted to dev@flink.apache.org by "Kurt Young (JIRA)" <ji...@apache.org> on 2017/04/17 01:28:42 UTC
[jira] [Created] (FLINK-6309) Memory consumer weights should be
calculated in job vertex level
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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