Anindya Sinha created MESOS-4892:
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Summary: Support arithmetic operations for shared resources with
consumer counts
Key: MESOS-4892
URL: https://issues.apache.org/jira/browse/MESOS-4892
Project: Mesos
Issue Type: Improvement
Components: general
Reporter: Anindya Sinha
Assignee: Anindya Sinha
With the introduction of shared resources, we need to add support for
arithmetic operations on Resources which perform such operations on shared
resources. Shared resources need to be handled differently so as to account for
incrementing/decrementing consumer counts maintained by each Resources object.
Case 1:
Resources total += shared_resource;
If shared_resource exists in total, this would imply that the consumer count is
incremented. If shared_resource does not exist in total, this would imply we
start tracking consumers for this shared resource initialized to 0 consumers.
Case 2
Resources total -= shared_resource;
If shared_resource exists in total, this would imply that the consumer count is
decremented. However, the shared_resource is removed from total if the consumer
count is originally 0 in total).
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