[jira] [Created] (FLINK-12694) Implement a HeapAccountingManager

[Shang Yuanchun (Jira)]

Yu Li created FLINK-12694:
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             Summary: Implement a HeapAccountingManager
                 Key: FLINK-12694
                 URL: https://issues.apache.org/jira/browse/FLINK-12694
             Project: Flink
          Issue Type: Sub-task
          Components: Runtime / State Backends
            Reporter: Yu Li
            Assignee: Yu Li


We need a {{HeapAccountingManager}} for a) (roughly) estimating the on-heap size of each key-value; and b) recording the size of each on-heap and off-heap KeyGroup. With such accountings we could decide which KeyGroup to spill/load.



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