shuai.xu created FLINK-7928:
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Summary: Extend the filed in ResourceProfile for precisely
calculating the resource of a task manager
Key: FLINK-7928
URL: https://issues.apache.org/jira/browse/FLINK-7928
Project: Flink
Issue Type: Improvement
Components: JobManager, ResourceManager
Reporter: shuai.xu
Assignee: shuai.xu
ResourceProfile records all the resource requirements for a slot。It is
generated by JobMaster and then passed to ResourceManager with the slot
request.
A task in the slot needs three parts of resource:
1. The resource for the operators, this is specified by the ResourceSpec user
defined
2. The resource for the operators to communicating with their upstreams. For
example, the resource for buffer pools and so on.
3. The resource for the operators to communicating with their downstreams. Same
as above.
So ResourceProfile should contain three parts of resource, the first part from
ResouceSpec, and the other two part be generated by Job Master.
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