Zhankun Tang created YARN-6720:
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Summary: Support updating FPGA related constraint node label after
FPGA device re-configuration
Key: YARN-6720
URL: https://issues.apache.org/jira/browse/YARN-6720
Project: Hadoop YARN
Issue Type: Sub-task
Components: yarn
Reporter: Zhankun Tang
In order to provide a global optimal scheduling for mutable FPGA resource, it
seems an easy and direct way to utilize constraint node labels(YARN-3409)
instead of extending the global scheduler(YARN-3926) to match both resource
count and attributes.
The rough idea is that the AM sets the constraint node label expression to
request containers on the nodes whose FPGA devices has the matching IP, and
then NM resource handler update the node constraint label if there's FPGA
device re-configuration.
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